Mercruiser Gen II Lower Gearcase Assembly Exploded View

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Sierra

Mercruiser Gen II Lower Gearcase Assembly Exploded View
Mercruiser Lower Gearcase Assembly Exploded View Diagram and Parts
Fits Generation II
Figure #DescriptionO.E.M. #Sierra #
1Gear Housing1623-815822A30
2Sleeve23-816573
3Coupling816597A1 18-3151
4O-Rings25-21836 18-7420
5Face Seal26-816575A2 18-2599
5AScrew, 10-32 X 5/810-806290NSS
5BStar Washer13-69432NSS
6Water Pump Body817275A1 18-3147**
7Impeller47-43026-2 18-3056
8Gasket27-817277 18-2563
9Face Plate817276 18-3122
10Gasket27-43033-1 18-2564
11Seal Carrier821759A2 18-2354
12O-Rings25-90011 18-7174
13Seal26-16977 18-2013
14Seal26-89238 18-2014
15Cover Nut824519 18-2346
16 & 17Bearing, Upper Driveshaft (1.50-1.65 Ratio)31-36387A1 18-1143
16 & 17Bearing, Upper Driveshaft (1:47-1:62 Ratio)31-33138A1 18-1193
18Shim(s)15-42637A1 18-2294
19Drive Shaft (1:47-1:62 Ratio)45-853648 18-2331
19Drive Shaft (1.50-1.65 Ratio)45-816919 18-2261
19Drive Shaft (1.84-1.98 Ratio)45-816472 *
20Impeller Drive Key28-43037 18-3293
21Shift Shaft815919A1 18-2320
22Speedometer Pickup Fitting^NSS
23Sleeve23-67370
24Seal26-89236 18-2009
25Shift Rod Bushing Assembly23-815921A21 18-2353
26O-Rings25-36318 18-7440
27Retaining Ring53-29641 18-4295
28Dowel Pin17-43044
29Seal26-45577 18-2944
30Gasket12-19183 18-2945
31Plug22-67892A1 18-2375
32Pin17-37972-1
33Pinion Bearing31-42647A1 18-1117
34Pinion Gear43-828072A2 18-2206>
35Washer12-92721 18-2343
36Nut11-35921 18-3719
37Shift Crank76865 18-2130
38Shift Spool Assembly818349A1 18-2286
38A38A.Cotter Pin & SleeveNSS 1
39RetainerNSS 1
40WashersNSS 1
41SpringNSS 1
42Shift SpoolNSS 1
43Clutch ShaftNSS 1
44Shim(S)15-47397A1 18-2285
45 & 46Set, Cone & Race31-35928A1 18-1159
47Forward Gear, Inner Bearing31-30895 18-1157
47A47A.Retaining Clip, Inner Bearing NSS
48Forward Gear43-828072A2 18-2206>
49Cross Pin Spring24-30893 18-2348
50Cross Pin17-30632 18-2357
51Sliding Clutch52-824112 18-2202
52Propeller Shaft44-824110 18-2166
53Reverse Gear43-828072A2 18-2206>
54Thrust Ring681001 18-2342
55Ball Bearing30-88957A1 18-1155
56O-Ring25-31534 18-7159
57Roller Bearing31-30956 18-1158
58Bearing Carrier818763A10 18-2376<
59Seal26-14077 18-2002
60Seal26-12224 18-2076
61Tab Washer14-18323 18-2298
62Cover Nut79448 18-3751
63Thrust Hub13171 18-4220
64Continuity Washer13-42351-1NSS
65Splined Washer12-31211A2 18-3714
66Tab Washer14-31210 18-3200
67Propeller Nut11-52707 18-3700
68Carrier Anode806105A1 18-6093
Seal Kit (Not Pictured)26-816575A3 18-2646-1
1Pieces not sold separately, must be purchased as 18-2286. Kit consists of figure numbers 38a- 43
2Also available in bulk pack of 10 pieces
*Must use 18-1143
#Must use 18-1193
**For Water Pump Kit use 18-3147 Mercruiser # 817275T4
^Comes with #25
**hsng. kit # 18-3147 only= 817275T4
>Gears sold as set only
<Includes inner brg. & seals
No Review for Propeller Lock Nut - Sierra
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Average Customer Review for Gear Housing/Shift Shaft Oil Seal - Sierra
Based On 1 Review
Good seal by Timothy - Canfield, OhioAugust 06, 2012
correct fit, good quality, fast shipment
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No Review for Sliding Clutch - Sierra
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No Review for Carrier Bearing - Sierra
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No Review for O-Ring - Sierra
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No Review for Water Coupling Assembly - Sierra
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Average Customer Review for Water Pump Kit - Sierra
Based On 2 Reviews
Great Service fast ship by David - Nantucket, MassachusettsJuly 31, 2012
Ordered and recieved parts hassle free super fast shipper. I actually just placed my second order with more to come in the future. Thanks for all your help
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Average Customer Review for Drain Plug with Magnet - Sierra
Based On 6 Reviews
Review for Sierra 18-2375 Drain Plug w/Magnet by a CustomerJuly 20, 2009
Shipping and handling is totally ridiculous $11.00 What were they thinking?
(5 of 5 people found this review helpful)
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No Review for Water Pump Impeller Plate - Sierra
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No Review for Drive Shaft - Sierra
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Average Customer Review for Oil Seal - Sierra
Based On 1 Review
seals by Daniel - Bloomington, TexasDecember 02, 2011
Alway very nice products and fast shipping
(1 of 1 people found this review helpful)
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No Review for Propeller Tab Washer - Sierra
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Average Customer Review for Water Pump Impeller - Sierra
Based On 3 Reviews
Water Pump Impeller by James - Warrenton, OregonJune 12, 2012
Great price and fast service!
(2 of 2 people found this review helpful)
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No Review for Bearing Carrier Oil Seal for Mercruiser 26-12224, Mercury/Mariner, GLM 85700 - Sierra
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No Review for Alpha Drive Shaft for Mercruiser 45-816919, GLM 11140 - Sierra
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No Review for Propeller Thrust Washer - Sierra
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Average Customer Review for Drain Screw Gasket - Sierra
Based On 2 Reviews
Good product. by Dean - Honolulu, HawaiiOctober 21, 2011
Satisfied with quality of the product.
(0 of 2 people found this review helpful)
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No Review for Shift Shaft - Sierra
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No Review for Shift Crank - Sierra
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No Review for Alpha Lower Unit Gear Set - Sierra
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No Review for Tapered Roller Bearing - Sierra
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No Review for Bearing Carrier - Sierra
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Based On 1 Review
outdrive tab by Cory - Katy, TexasJune 15, 2012
High quality replacement part, excellent fitment into housing
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No Review for Seal Ring Gasket for Mercruiser 26-45577, OMC Sterndrive/Cobra 303059, GLM 85140 - Sierra
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Average Customer Review for Water Pump Impeller Key - Sierra
Based On 3 Reviews
Review for Sierra 18-3293 Impeller Key by a CustomerMarch 20, 2009

(4 of 6 people found this review helpful)
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No Review for Water Pump Impeller Gasket - Sierra
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No Review for Propeller Shaft for Mercruiser 44-824110 44-66060-3, GLM 11150 11155 - Sierra
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Average Customer Review for Seal Carrier - Sierra
Based On 1 Review
plastic seal by Cory - Katy, TexasJune 15, 2012
Excellent product, fits the housing perfectly. Decided to rebuild my outdrive and damaged this part when dismantling. high quality and direct replacement for the original.
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No Review for Water Pump Impeller Gasket - Sierra
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No Review for Pinion Bearing - Sierra
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No Review for Spring Clip - Sierra
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Average Customer Review for Shift Rod Bushing Assembly - Sierra
Based On 1 Review
Shift Rod Bushing Assembly - Sierra by Benjamin - Dacula, GeorgiaSeptember 27, 2012
ok
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No Review for Forward Gear Inner Bearing - Sierra
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No Review for Anode - Sierra
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No Review for Clutch Cross Pin Spring - Sierra
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No Review for Shift Spool Crank - Sierra
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Average Customer Review for O-Ring - Sierra
Based On 1 Review
Nice by Enio - Rockville, MarylandJune 13, 2013
Very good
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No Review for Ball Bearing - Sierra
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No Review for Pinion Nut Washer - Sierra
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No Review for Shim Kit - Sierra
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No Review for Pinion Nut - Sierra
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No Review for O-Ring - Sierra
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No Review for Retainer Nut - Sierra
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No Review for Tapered Roller Bearing - Sierra
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No Review for Cross Pin - Sierra
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Average Customer Review for Lower Unit Seal Kit - Sierra
Based On 1 Review
Seal kit Ordering procedure. by Dennis - Spokane, WashingtonJune 11, 2013
Your Product is good. What happened to Parts Finder? It was a very useful tool for me. I asked for a part and it asked what it was for, make, model, year, serial number, horse power, etc. I had to go to another parts place online to get parts for my Evenrude. I needed coils and points. I couldn't figure out your complicated ordering process. Looking forward to doing business with you again, if I can figure out how to order parts. Thank you. PS I'm not the only person who feels this way.
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No Review for Oil Seal - Sierra
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Average Customer Review for Face Seal & Tool - Sierra
Based On 1 Review
Quality by Lindsey - Woodruff, South CarolinaJune 09, 2012
I only needed the tool which is essentially a depth spacer. This proved to be exactly what I needed.
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No Review for Shim Kit - Sierra
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No Review for Lower Water Pump Base Oil Seal for Mercruiser, Mercury/Mariner 26-89238, GLM 85070 - Sierra
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No Review for Brass Propeller Castle Washer - Sierra
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No Review for Thrust Ring - Sierra
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No Review for Spanner Nut V6 for Mercruiser, Mercury/Mariner 79448, GLM 21120 - Sierra
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No Review for Tapered Roller Bearing - Sierra
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No Review for Mallory washer 9-78108
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No Review for Mallory thrust ring 9-78106
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No Review for Mallory Pinion Nut 9-78103
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No Review for Mallory O-Ring 9-76565
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No Review for Mallory O-Ring 9-76553
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No Review for Mallory O-Ring 9-76544
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No Review for Mallory Seal Ring Gasket 9-76512
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No Review for Mallory Oil Seal 9-76202
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No Review for Mallory Bushing Assy. 9-76136
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No Review for Mallory Oil Seal 9-76109
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No Review for Mallory Oil Seal 9-76108
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No Review for Mallory Oil Seal 9-76105
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No Review for Mallory Oil Seal 9-76101
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No Review for Mallory bearing 9-75112
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No Review for Mallory bearing 9-75111
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No Review for Mallory Bearing 9-75107
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No Review for Mallory Seal Kit, Gear Housing 9-74206
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Average Customer Review for Mallory Prop Washer 9-73902
Based On 1 Review
Good replacement part by Eric - Alpharetta, GeorgiaMay 17, 2013
Install and fit is as expected
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No Review for Mallory Washer, Tab 9-73900
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No Review for Mallory Drain Plug (Magnet) 9-72651
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No Review for Mallory Shift Shaft 9-72477
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No Review for Mallory Prop Shaft 9-72450
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No Review for Mallory Nut, Spanner 9-72155
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Average Customer Review for Mallory Gasket, Drain Plug 9-60101
Based On 1 Review
great by Ron - Ogden, UtahNovember 29, 2012
great
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No Review for Mallory Gasket, Pump to Face Plate 9-60021
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No Review for Mallory Impeller Gasket 9-60020
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Average Customer Review for Mallory Impeller 9-45307
Based On 1 Review
impeller for a 90 force 120 by Jerry - Gold Beach, OregonMarch 09, 2012
fast service, and the quality is great thank you
(1 of 2 people found this review helpful)
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No Review for Mallory Face Seal & Tool 9-43628
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Pleasurecraft R017066 replacement parts

Propeller Lock Nut - Sierra
Sale Price: $9.99
Save: $2.00
(16% Off $11.99)
Part # 18-3700
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Part # 18-3700
Replaces OEM part #

  • CHRYSLER FORCE F7000
  • HONDA 90301-ZW1-003
  • MERCURY MARINE 11-52707
  • PLEASURECRAFT R017066
Gear Housing/Shift Shaft Oil Seal - Sierra

Gear Housing/Shift Shaft Oil Seal - Sierra
Sale Price: $7.99
Save: $2.00
(20% Off $9.99)
Part # 18-2009


Part # 18-2009
Shaft Size - 0.375"
Outer Diameter - 0.750"
Width - 0.250"

Replaces OEM part #

  • MERCURY MARINE 26-89236 1
  • MERCURY MARINE 26-89236
Mercury Marine 52-66063 replacement parts

Sliding Clutch - Sierra
Sale Price: $191.99
Part # 18-2202
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Part # 18-2202
Replaces OEM part #

  • MERCURY MARINE 52-66063
  • MERCURY MARINE 52-853594T
For: Mercruiser 888 S/N 3784375 & UP, and Mercruiser #1 Units S/N 3469428 & UP
Johnson / Evinrude / OMC 387247 replacement parts

Carrier Bearing - Sierra
Sale Price: $11.99
Save: $2.00
(14% Off $13.99)
Part # 18-1158
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Part # 18-1158
Replaces OEM part #

  • HONDA 91053-ZW1-003
  • OMC 387247
  • MERCURY MARINE 31-30956T
  • MERCURY MARINE 31-30956
GLM 82110 replacement parts

O-Ring - Sierra
Sale Price: $4.99 (Out of stock)
Save: $2.50
(33% Off $7.49)
Part # 18-7420-9
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Part # 18-7420-9
Dimensions ( in )
I.D. .862
Width .139

Replaces OEM part #

  • MERCURY MARINE 25-21836
  • MERCURY MARINE 25-25439

  
GLM 12041 replacement parts

Water Coupling Assembly - Sierra
Sale Price: $9.99
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(13% Off $11.49)
Part # 18-3151
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Part # 18-3151
Replaces OEM part #

  • MERCURY MARINE 816597

    • Sierra warrants its Water Coupling Assemblys and other engine parts to be free of defects in workmanship and materials for the life of the vessel on which they were originally installed.
Water Pump Kit - Sierra

Water Pump Kit - Sierra
Sale Price: $96.99
Save: $32.01
(24% Off $129.00)
Part # 18-3147


Part # 18-3147
Replaces OEM part #

  • MERCURY MARINE 817275T4
For: Gen ll-Lower s/n D469859 and Up
Mercury Marine 22-67892A 1 replacement parts

Drain Plug with Magnet - Sierra
Sale Price: $4.99
Save: $1.50
(23% Off $6.49)
Part # 18-2375


Part # 18-2375
Replaces OEM part #

  • MERCURY MARINE 10-14834A1
  • MERCURY MARINE 22-67892A1
For: Mercruiser Alpha MR/Gen II lower units
Not to be used on #1/R lower units
Honda 19231-ZW1-003 replacement parts

Water Pump Impeller Plate - Sierra
Sale Price: $6.99
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(17% Off $8.49)
Part # 18-3122
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Part # 18-3122
Replaces OEM part #

  • HONDA 19231-ZW1-003
    For: 75-90 HP MERCURY MARINE 817276
  • MERCURY MARINE 817276 1
For Alpha l - Generation 2 S/N D494569 & Above
Drive Shaft - Sierra

Drive Shaft - Sierra
Sale Price: $582.99
Part # 18-2331
Hurry! Only 1 left in stock
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Part # 18-2331
Replaces OEM part #

  • MERCURY MARINE 45-853648
For: Mercruiser Gen II (1998 & up), (0L100040 & up) with gear Ratios 1.47, 1.62, 1.81 & 1.94.
Mercury Oil Seals

Oil Seal - Sierra
Sale Price: $7.99
Save: $1.50
(15% Off $9.49)
Part # 18-2002


Part # 18-2002
Shaft Size - 1.188"
Outer Diameter - 1.692"
Width - 0.250"


Replaces OEM part #

  • HONDA 91252-ZW1-003
  • OMC 320862
  • MERCURY MARINE 26-76868
Mercury Marine 14-816629 replacement parts

Propeller Tab Washer - Sierra
Sale Price: $18.99
Save: $6.00
(24% Off $24.99)
Part # 18-3200-9
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Part # 18-3200-9
Replaces OEM part #

  • CHRYSLER FORCE F697140
  • HONDA 90508-ZW1-003 For: 75-90 HP
  • MERCURY MARINE 14-31210
  • MERCURY MARINE 14-816629
  • PLEASURECRAFT R096117
Package of 10
Water Pump Impeller - Sierra

Water Pump Impeller - Sierra
Sale Price: $15.99
Save: $8.00
(33% Off $23.99)
Part # 18-3056


Part # 18-3056
Replaces OEM part #

  • CHRYSLER FORCE 47-43026-2
  • HONDA 19210-ZW1-003
    For: 75-90 HP
  • MERCURY MARINE 47-43026-2
  • MERCURY MARINE 47-43026-T2
For Alpha l-Generation 2 S/N D494569 & Above
Mercury Marine 26-12224 replacement parts

Part # 18-2076
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Part # 18-2076
Shaft Size - 1.188"
Outer Diameter - 1.690"
Width - 0.360"

Replaces OEM part #

  • MERCURY MARINE 26-12224
GLM 11140 replacement parts

Alpha Drive Shaft for Mercruiser 45-816919, GLM 11140 - Sierra
Sale Price: $428.99
Save: $85.01
(16% Off $514.00)
Part # 18-2261
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Part # 18-2261
Replaces OEM part #

  • MERCURY MARINE 45-816919
For: All Mercruiser Alpha I Generation II Drives (with new style 18-3056 Impeller)Serial #D494569 & above.
Mercury Marine 77987 replacement parts

Propeller Thrust Washer - Sierra
Sale Price: $22.99
Save: $4.50
(16% Off $27.49)
Part # 18-4220
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Part # 18-4220
Replaces OEM part #

  • MERCURY MARINE 12-835467 1
  • MERCURY MARINE 13171
  • MERCURY MARINE 77987
  • PLEASURECRAFT RO096116
For: Mercury / Mariner- V-6 Outboards & Mercruiser Sterndrives
Mercury Marine 12-19183-2 replacement parts

Drain Screw Gasket - Sierra
Sale Price: $1.99
Save: $0.30
(13% Off $2.29)
Part # 18-2945-9


Part # 18-2945-9
Replaces OEM part #

  • OMC 307552
  • MERCURY MARINE 12-19183
  • MERCURY MARINE 12-19183 2
  • MERCURY MARINE 12-20260
Package of 2
Used in most lower units and sea water pumps
Used with 18-2244 Drain Screw
GLM 21031 replacement parts

Shift Shaft - Sierra
Sale Price: $44.99
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(15% Off $52.99)
Part # 18-2320
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Part # 18-2320
Replaces OEM part #

  • MERCURY MARINE 815919A1
For: Mercruiser Gen II
Mercury Marine 76865 replacement parts

Shift Crank - Sierra
Sale Price: $60.99
Save: $11.00
(15% Off $71.99)
Part # 18-2130
Hurry! Only 1 left in stock
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Part # 18-2130
Replaces OEM part #

  • MERCURY MARINE 76865
For :All Mercruiser #1 Units R/MR/Alpha
Alpha Lower Unit Gear Set - Sierra

Part # 18-2206-1
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Part # 18-2206-1
Replaces OEM part #

  • MERCURY MARINE 43-17064A2
  • MERCURY MARINE 43-17064A3
  • MERCURY MARINE 43-42934
For: Mecruiser 1996 & older serial number F679999 & lower.
Uses our 18-1173 forward bearing with 3.500 O.D.
GLM 21584 replacement parts

Tapered Roller Bearing - Sierra
Sale Price: $35.99
Save: $7.50
(17% Off $43.49)
Part # 18-1193
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Part # 18-1193
Replaces OEM part #

  • MERCURY MARINE 31-33138A1
For: Mercruiser Gen II (1998-up)
Bearing Carrier - Sierra

Bearing Carrier - Sierra
Sale Price: $141.99
Save: $32.01
(18% Off $174.00)
Part # 18-2376
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Part # 18-2376
Replaces OEM part #

  • MERCURY MARINE 818763A10
For: Mercruiser Alpha Gen II & MR Units Housings with casting #73020C1
Mariner Prop Shaft Tab Washers

Part # 18-2298


Part # 18-2298
Replaces OEM part #

  • MERCURY MARINE 14-18323
Seal Ring Gasket for Mercruiser 26-45577, OMC Sterndrive/Cobra 303059, GLM 85140 - Sierra

Part # 18-2944-9
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Part # 18-2944-9
Replaces OEM part #

  • MERCURY MARINE 26-45577
Package of 2
Water Pump Impeller Key - Sierra

Water Pump Impeller Key - Sierra
Sale Price: $2.99
Save: $0.50
(14% Off $3.49)
Part # 18-3293


Part # 18-3293
Replaces OEM part #

  • MERCURY MARINE 28-43037
  • MERCURY MARINE 28-43037
Also large O/B's
GLM 30290 replacement parts

Water Pump Impeller Gasket - Sierra
Sale Price: $4.99
Save: $1.00
(16% Off $5.99)
Part # 18-2563-9
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Part # 18-2563-9
Replaces OEM part #

  • HONDA 19232-ZWI-003
  • MERCURY MARINE 27-43034-1
  • For Mercury/Mariner 70 / 75 / 80 / 90 / 100 / 115

    • Pkg. of 2
Mercury Marine 44-824110 replacement parts

Propeller Shaft for Mercruiser 44-824110 44-66060-3, GLM 11150 11155 - Sierra
Sale Price: $425.99
Save: $78.01
(15% Off $504.00)
Part # 18-2166
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Part # 18-2166
Replaces OEM part #

  • MERCURY MARINE 44-824110
  • MERCURY MARINE 44-66060-3
  • MERCURY MARINE 44-66060
For: All Mercruiser #1 & MR/ALPHA Units S/N 2791957 & above. Also for 165 (6 cyl.) S/N 2763442 & above.
Mercruiser Carrier Seals

Seal Carrier - Sierra
Sale Price: $23.99
Save: $6.00
(20% Off $29.99)
Part # 18-2354


Part # 18-2354
Replaces OEM part #

  • MERCURY MARINE 807929A1
  • MERCURY MARINE 821759A4
GLM 30090 replacement parts

Water Pump Impeller Gasket - Sierra
Sale Price: $4.99
Save: $0.50
(9% Off $5.49)
Part # 18-2564-9
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Part # 18-2564-9
Replaces OEM part #

  • HONDA 19234-ZW1-003
  • MERCURY MARINE 27-43033-1
For: Mercury/Mariner 70 / 75 / 80 / 90 / 100 / 115; Mercruiser Alpha I - Generation 2
Package of 2
Johnson / Evinrude / OMC 387817 replacement parts

Pinion Bearing - Sierra
Sale Price: $33.99
Save: $8.50
(20% Off $42.49)
Part # 18-1117
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Part # 18-1117
Replaces OEM part #

  • OMC 387817
  • MERCURY MARINE 31-42647A1
Spring Clip - Sierra

Spring Clip - Sierra
Sale Price: $1.99
Save: $0.70
(26% Off $2.69)
Part # 18-4295-9
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Part # 18-4295-9
Replaces OEM part #

  • MERCURY MARINE 53-29641
Package of 2
For: Mercruiser Gen II
Mercruiser Shift Rod Bushing Assemblies

Shift Rod Bushing Assembly - Sierra
Sale Price: $20.99
Save: $4.00
(16% Off $24.99)
Part # 18-2353


Part # 18-2353
Replaces OEM part #

  • MERCURY MARINE 23-815921A21
Mercruiser Inside Forward Gear Bearings

Forward Gear Inner Bearing - Sierra
Sale Price: $12.99
Save: $2.00
(13% Off $14.99)
Part # 18-1157
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Part # 18-1157
Replaces OEM part #

  • HONDA 91057-ZW1-003
  • MERCURY MARINE 31-30895T
  • MERCURY MARINE 31-30895
GLM 12702 replacement parts

Anode - Sierra
Sale Price: $32.99
Save: $7.00
(17% Off $39.99)
Part # 18-6093
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Part # 18-6093

  • Zinc Anode
  • Replaces OEM part # MERCURY MARINE 806105A1
  • MERCURY MARINE 806105Q 1
  • MERCURY MARINE 806105T1

For: Mercruiser Alpha One (Gen II) (1991& UP)
GLM 11050 replacement parts

Clutch Cross Pin Spring - Sierra
Sale Price: $3.99
Save: $0.30
(6% Off $4.29)
Part # 18-2348-9
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Part # 18-2348-9
Replaces OEM part #

  • MERCURY MARINE 24-30893
Package of 2
For: Mercruiser 1/MC-1/R/MR/Alpha Mercruiser/Gen II lower S/N D469859 - F679999
Shift Spool Crank - Sierra

Shift Spool Crank - Sierra
Sale Price: $70.99
Save: $14.00
(16% Off $84.99)
Part # 18-2286
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Part # 18-2286
Replaces OEM part #

  • MERCURY MARINE 818349 1
  • MERCURY MARINE 19755A2
GLM 83440 replacement parts

O-Ring - Sierra
Sale Price: $13.99
Save: $3.50
(20% Off $17.49)
Part # 18-7159-9


Part # 18-7159-9
Dimensions ( in )
I.D. 3.855
Width .210

Replaces OEM part #

  • MERCURY MARINE 25-31534
Mercury Forward Gear Outside Bearings

Ball Bearing - Sierra
Sale Price: $33.99
Save: $6.00
(15% Off $39.99)
Part # 18-1155
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Part # 18-1155
Replaces OEM part #

  • MERCURY MARINE 30-88957A1
  • MERCURY MARINE 30-88957T
Pinion Nut Washer - Sierra

Pinion Nut Washer - Sierra
Sale Price: $1.99
Save: $1.00
(33% Off $2.99)
Part # 18-2343-9
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Part # 18-2343-9
Replaces OEM part #

  • MERCURY MARINE 12-92721
Package of 2
For: Mercruiser MR/Alpha/Gen II
Mercruiser Gen II Lower Gearcase Assembly Exploded View-Shim Kit - Sierra

Shim Kit - Sierra
Sale Price: $6.99
Save: $1.70
(19% Off $8.69)
Part # 18-2294
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Part # 18-2294
Replaces OEM part #

  • MERCURY MARINE 15-42637A-1
Lower Drive Shaft Bearing Shims
Contains: (1) each .002, .003, .005, .010, & .020 shims
Mariner Drive Nut Sets

Pinion Nut - Sierra
Sale Price: $3.99
Save: $0.70
(14% Off $4.69)
Part # 18-3719
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Part # 18-3719
Replaces OEM part #

  • MERCURY MARINE 11-35921
  • OMC 314730
    ( 5/8 - 18 )
GLM 81140 replacement parts-O-Ring - Sierra

O-Ring - Sierra
Sale Price: $3.99
Save: $3.50
(46% Off $7.49)
Part # 18-7174-9
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Part # 18-7174-9
Dimensions ( in )
I.D. .620
Width .100

Replaces OEM part #

  • OMC 326649
  • OMC 910582
  • MERCURY MARINE 25-45711
GLM 23200 replacement parts

Retainer Nut - Sierra
Sale Price: $3.99
Save: $0.50
(11% Off $4.49)
Part # 18-2346
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Part # 18-2346
Replaces OEM part #

  • MERCURY MARINE 824519
For: Mercruiser MR Alpha & Gen II
Mercruiser Tapered Roller Bearings

Tapered Roller Bearing - Sierra
Sale Price: $32.99
Save: $6.00
(15% Off $38.99)
Part # 18-1143
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Part # 18-1143
Replaces OEM part #

  • MERCURY MARINE 31-36387A1
Mariner 70 - 125 HP 4 cylinder Gearcase Assembly Exploded View-Cross Pin - Sierra

Cross Pin - Sierra
Sale Price: $1.99
Save: $0.70
(26% Off $2.69)
Part # 18-2357
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Part # 18-2357
Replaces OEM part #

  • MERCURY MARINE 17-30632
Lower Unit Seal Kit - Sierra

Lower Unit Seal Kit - Sierra
Sale Price: $29.99
Save: $34.00
(53% Off $63.99)
Part # 18-2646-1


Part # 18-2646-1
Replaces OEM part #

  • MERCURY MARINE 26-816575A3
For: Mercruiser Alpha Gen II
Kit Contains:
    ( 1 ) 18-2599 Face Seal and Tool - replaces O.E.# 26-818575A2
    ( 1 ) 18-2564 Water Pump Base to Face Plate Gasket - replaces O.E.# 27-43033-1
    ( 1 ) 18-2566 Face Plate to Water Pump Cover Gasket - replaces O.E.# 27-817277
    ( 1 ) 18-2945 Sealing Washer - replaces O.E.# 12-19183
    ( 1 ) 18-2944 Seal - replaces O.E.# 26-45577
    ( 1 ) 18-2002 Oil Seal - replaces O.E.# 26-76868
    ( 1 ) 18-2013 Oil Seal - replaces O.E.# 26-16977
    ( 1 ) 18-2014 Oil Seal - replaces O.E.# 26-89238
    ( 1 ) 18-2054 Oil Seal - replaces O.E.# 26-81646-1
    ( 1 ) 18-2076 Oil Seal - replaces O.E.# 26-12224
    ( 1 ) 18-2077 Oil Seal - replaces O.E.# 26-14077
    ( 1 ) 18-7159 Oil Ring - replaces O.E.# 25-31534
    ( 2 ) 18-7168 O-Ring - replaces O.E.# 25-48171
    ( 1 ) 18-7176 O-Ring - replaces O.E.# 25-90011
    ( 2 ) 18-7420 O-Ring - replaces O.E.# 25-21836
    ( 2 ) 18-7440-1 O-Ring - replaces O.E.# 25-36318
    ( 2 ) 18-2056 Oil Seal - replaces O.E.# 26-66302
    ( 1 ) 18-7413 O-Ring - replaces O.E.# 25-62702
Mercury Marine 26-16977 replacement parts-Oil Seal - Sierra

Oil Seal - Sierra
Sale Price: $9.99
Save: $2.50
(20% Off $12.49)
Part # 18-2013
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Part # 18-2013
Shaft Size - 0.875"
Outer Diameter - 1.250"
Width - 0.188"

Replaces OEM part #

  • MERCURY MARINE 26-16977
GLM 85590 replacement parts

Face Seal & Tool - Sierra
Sale Price: $5.99
Save: $0.50
(7% Off $6.49)
Part # 18-2599


Part # 18-2599
Replaces OEM part #

  • MERCURY MARINE 26-816575A2
For: Mercruiser Alpha I Generation II
Mercury Marine 15-47397A1 replacement parts

Shim Kit - Sierra
Sale Price: $9.99
Save: $3.50
(25% Off $13.49)
Part # 18-2285
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Part # 18-2285
Replaces OEM part #

  • MERCURY MARINE 15-47397A1
Kit Contains: (1) each .002, .003, .005, .010, & .020 shims
Mercury Marine 26-89238 replacement parts

Part # 18-2014
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Part # 18-2014
Shaft Size - 0.875"
Outer Diameter - 1.500"
Width - 0.312"

Replaces OEM part #

  • MERCURY MARINE 26-89238
Brass Propeller Castle Washer - Sierra

Brass Propeller Castle Washer - Sierra
Sale Price: $6.99
Save: $1.00
(12% Off $7.99)
Part # 18-3714
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Part # 18-3714
Fits: Alpha/Bravo I (without Flo-Torq II Hub)
Replaces OEM part #

  • MERCURY MARINE 12-31211A2
  • MERCURY MARINE 12-31211A3

NOTE: Fits above product with rubber hub propellers (non-Flo-Torq II)
Mercury Marine 68100 1 replacement parts

Thrust Ring - Sierra
Sale Price: $9.99
Save: $1.00
(9% Off $10.99)
Part # 18-2342
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Part # 18-2342
Replaces OEM part #

  • MERCURY MARINE 681001
For: Mercruiser MR/ ALPHA
Mercruiser Spanner Nuts

Spanner Nut V6 for Mercruiser, Mercury/Mariner 79448, GLM 21120 - Sierra
Sale Price: $18.99
Save: $3.50
(15% Off $22.49)
Part # 18-3751
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Part # 18-3751
Replaces OEM part #

  • MERCURY MARINE 79448
GLM 21590 replacement parts

Tapered Roller Bearing - Sierra
Sale Price: $52.99
Save: $12.00
(18% Off $64.99)
Part # 18-1159
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Part # 18-1159
Replaces OEM part #

  • MERCURY MARINE 31-35928T1
  • MERCURY MARINE 31-35928A1
Mallory washer 9-78108

Mallory washer 9-78108*
Sale Price: $1.79
Part # 9-78108
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):12-92721
Fits Application:pinion nut lower unit R/MR/ Alpha I, Gen II
Mallory thrust ring 9-78106

Mallory thrust ring 9-78106*
Sale Price: $8.99
Save: $2.00
(18% Off $10.99)
Part # 9-78106
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):68100 1
Fits Application:MR/Alpha/Gen II
Mallory Pinion Nut 9-78103

Mallory Pinion Nut 9-78103*
Sale Price: $3.59
Save: $0.70
(16% Off $4.29)
Part # 9-78103
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Replaces Original Equipment Manufacturer(OEM):Mercruiser / Mercury
Replaces Original Equipment Manufacturer # (OEM #):11-35921
Fits Application:Lower unit, V-6 OB, and all Sterndrives.
Mallory O-Ring 9-76565

Mallory O-Ring 9-76565*
Sale Price: $0.89
Save: $0.30
(25% Off $1.19)
Part # 9-76565
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):25-21836
Mallory O-Ring 9-76553

Mallory O-Ring 9-76553*
Sale Price: $0.89
Save: $0.30
(25% Off $1.19)
Part # 9-76553
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Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):326649
Mallory O-Ring 9-76544

Mallory O-Ring 9-76544*
Sale Price: $2.69
Save: $0.60
(18% Off $3.29)
Part # 9-76544
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):25-31534
Mallory Seal Ring Gasket 9-76512

Part # 9-76512
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Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):303059
Fits Application:40-60
Mallory Oil Seal 9-76202

Representative Image Only
Mallory Oil Seal 9-76202*
Sale Price: $7.19
Save: $1.80
(20% Off $8.99)
Part # 9-76202
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Replaces GLM #:85130
Replaces Original Equipment Manufacturer(OEM):Mercruiser / Mercury / Johnson/OMC
Replaces Original Equipment Manufacturer # (OEM #):320862 / 26-76868
Fits Application:V4/V6 & Cobra
Mallory Bushing Assy. 9-76136

Mallory Bushing Assy. 9-76136*
Sale Price: $18.89
Save: $5.10
(21% Off $23.99)
Part # 9-76136
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Replaces Original Equipment Manufacturer(OEM):Mercruiser / Mercury
Replaces Original Equipment Manufacturer # (OEM #):23-815921A 21
Fits Application:Gen II shift shaft
Mallory Oil Seal 9-76109

Mallory Oil Seal 9-76109*
Sale Price: $9.89
Save: $2.06
(17% Off $11.95)
Part # 9-76109
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):26-89238
Fits Application:115 & up wtr pump base
 

Mallory Oil Seal 9-76108*
Sale Price: $8.09
Save: $3.40
(29% Off $11.49)
Part # 9-76108
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):26-16977
Fits Application:30 - V-6 wtr pump base
 

Mallory Oil Seal 9-76105*
Sale Price: $6.29
Save: $3.00
(32% Off $9.29)
Part # 9-76105
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):26-89236
Fits Application:40/70/225 & Mercruiser shift shaft
Mallory Oil Seal 9-76101

(Representative Photo Only)
Mallory Oil Seal 9-76101*
Sale Price: $5.39
Save: $1.20
(18% Off $6.59)
Part # 9-76101
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):26-12224
Fits Application:Prop shaft Force 90-150, Mercruiser R - Gen II
Mallory bearing 9-75112

Mallory bearing 9-75112*
Sale Price: $9.89
Save: $3.60
(26% Off $13.49)
Part # 9-75112
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):31-30956T
Fits Application:Prop shaft bearing carrier OB 40hp & up
Mallory bearing 9-75111

Mallory bearing 9-75111*
Sale Price: $11.69
Save: $2.64
(18% Off $14.33)
Part # 9-75111
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):31-30895T
Fits Application:inside fwd gear on most OB & All SD
Mallory Bearing 9-75107

Mallory Bearing 9-75107*
Sale Price: $34.19
Save: $9.80
(22% Off $43.99)
Part # 9-75107
Hurry! Only 1 left in stock
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Replaces GLM #:21580
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):31-36387A1
Fits Application:V-6 outboard and Mercruiser driveshaft
Mallory Seal Kit, Gear Housing 9-74206

Mallory Seal Kit, Gear Housing 9-74206*
Sale Price: $35.99
Save: $9.96
(21% Off $45.95)
Part # 9-74206
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Replaces GLM #:87511
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):26-816575A3
Fits Application:Alpha Gen II
Mallory Prop Washer 9-73902

Mallory Prop Washer 9-73902*
Sale Price: $6.29
Save: $1.50
(19% Off $7.79)
Part # 9-73902


Replaces GLM #:21360
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):12-31211A3
Fits Application:Most Mercruiser Drives
Mallory Washer, Tab 9-73900

Mallory Washer, Tab 9-73900*
Sale Price: $2.69
Save: $0.40
(12% Off $3.09)
Part # 9-73900
Hurry! Only 1 left in stock
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Replaces GLM #:21210
Replaces Original Equipment Manufacturer(OEM):Mercury / Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):14-816629
Fits Application:70hp & up, & Mercruiser
Mallory Drain Plug (Magnet) 9-72651

Mallory Drain Plug (Magnet) 9-72651*
Sale Price: $5.39
Save: $1.10
(16% Off $6.49)
Part # 9-72651
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Replaces GLM #:21731
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):10-14834A1 SS 22-67892A1
Fits: All MC-I Alpha I, Gen II TR&TRS
Mallory Shift Shaft 9-72477

Mallory Shift Shaft 9-72477*
Sale Price: $40.49
Save: $11.00
(21% Off $51.49)
Part # 9-72477
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):815919A 1
Fits Application:Gen II
Mallory Prop Shaft 9-72450

Mallory Prop Shaft 9-72450*
Sale Price: $355.49
Save: $114.46
(24% Off $469.95)
Part # 9-72450
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):44-824110
Fits Application:R/MR/Alpha I. Gen II
Mallory Nut, Spanner 9-72155

Mallory Nut, Spanner 9-72155*
Sale Price: $17.09
Save: $4.40
(20% Off $21.49)
Part # 9-72155
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Replaces GLM #:21120
Replaces Original Equipment Manufacturer(OEM):Mercruiser / Mercury
Replaces Original Equipment Manufacturer # (OEM #):79448
Fits Application:R, MR, Alpha, Gen II
Mallory Gasket, Drain Plug 9-60101

Part # 9-60101


Replaces GLM #:31170
Replaces Original Equipment Manufacturer(OEM):Mercruiser / Mercury / Johnson/OMC
Replaces Original Equipment Manufacturer # (OEM #):12-19183-2 / 307552
Fits Application:Most Mercury OB & Mercruiser
Mallory Gasket, Pump to Face Plate 9-60021

Part # 9-60021
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):27-43034-1
Fits Application:70-125
Mallory Impeller Gasket 9-60020

Mallory Impeller Gasket 9-60020*
Sale Price: $2.69
Part # 9-60020
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):27-43033-1
Fits Application:70-125
Mallory Impeller 9-45307

Mallory Impeller 9-45307*
Sale Price: $17.09
Save: $4.40
(20% Off $21.49)
Part # 9-45307


Replaces GLM #:89630
Replaces Original Equipment Manufacturer(OEM):Mercury / Honda
Replaces Original Equipment Manufacturer # (OEM #):47-43026T2 / 19210-ZW1-303
Mallory Face Seal & Tool 9-43628

Mallory Face Seal & Tool 9-43628*
Sale Price: $5.39
Save: $0.80
(12% Off $6.19)
Part # 9-43628
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):26-816575A 2
Fits Application:Alpha I Gen II
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