Mercruiser Sterndrive I/I-R/MR/Alpha One Drive Shaft Housing Components Exploded View

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Sierra

Mercruiser Sterndrive I/I-R/MR/Alpha One Drive Shaft Housing Components Exploded View
Mercruiser Sterndrive Typical Drive Shaft Housing Components Exploded View Diagram and Parts
Fits I / I-R / MR / Alpha One (Typical)
Figure #DescriptionO.E.M. #Sierra #
1Upper Gear Housing N/A
2Screw, Top Cover10-98794 18-3231
3Top Cover94998A2 18-2381
4O-Ring, Top Cover25-32546* 18-7161
5Shim, Bearing Cup to Top Cover15-45691A1 18-2283
6Tapered Roller Bearing31-61100A1 18-1165
7Upper Drive Shaft45-55796 18-2179
8O-Ring, Upper Drive Shaft25-55801* 18-7445
9 & 10Upper Unit Gear Set
1.5:143-18410A2, 46-18411A2 18-2201
Rebuild Kit 18-2256
1.65:143-45814A5 18-2203
Rebuild Kit 18-2257
1.84:143-75325A3 18-2204
Rebuild Kit 18-2258
1.98:143-55778A3 18-2205
Rebuild Kit 18-2259
11Tapered Roller Bearing31-35990A1 18-1161
12Shim Kit, Bearing Cup to Drive Shaft Housing15-36178A1 18-2293
13Oil Seal, Upper Drive Shaft Housing26-32511* 18-2049
14Oil Seal, Lower Drive Shaft Housing26-96503* 18-2056
15Vent Screw10-79953A2 18-2244
16Gasket, Gear Housing Drain Screw12-19183, 12-20260* 18-2945
17Plug, Trim Tab Hole19-47579 18-3232
18Stud, Drive Shaft Housing (4) N/A
19Bushing, Drive Shaft Housing23-32632 18-3236
20Nut, Gear Housing Stud (3)11-13439-1 18-2362
21Welch Plug, Drive Shaft Housing
(7/8" OD)19-32652 18-4272
(1 1/4" OD)19-42682 18-4273
22Pipe Plug, Water Pocket N/A
23Nut, Drive Gear to U-Joint11-22339 18-3713
24Washer, Drive Gear to U-Joint Nut12-45810 18-3712
25Shim Kit, Drive Gear15-35980A1 18-2292
26Bearing Kit31-35988A2, A12 18-1160
27Spacer (comes with kit)31-35988A2, A12 18-1160
28Roller Bearing (comes with kit)31-35988A2, A12 18-1160
29Oil Seal26-64893* 18-2003
30Carrier Assembly Oil Seal66081A2 18-0577
31O-Ring25-70937* 18-7169
32Ring, Roller Bearing Retainer35983 18-4296
33Retaining Nut Drive Shaft Housing816811-1 18-3752
34Yoke Assembly46020T 18-2125
35Heavy Duty U-Joint75832A2 18-2104
36Center Socket39383T 18-2128
37U-Joint Shaft Coupler59830A1 18-2146
38Drive Shaft59830A5 18-9218
39O-Ring25-25439* 18-7153
40Screw, Water Pocket Cover to Drive Shaft Housing10-28668 18-3229
41**Gasket, Water Pocket Cover27-55810* 18-0894
42**Water Pocket Cover NSS
43**Bushing, Water Pump Housing26-38970* 18-3110
44**Water Tube32-54236 18-3220
**Items 41, 42, 43 and 44 makeup 18-3219 Water Housing Kit
*Included in Seal Kit 18-2648 (Not Pictured)
N/ANot Available
No Review for Bearing Kit for Mercruiser 31-35988A2 31-35988A12, GLM 21520 - Sierra
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No Review for Housing Alignment Bushing - Sierra
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Average Customer Review for Upper Unit Seal Kit - Sierra
Based On 3 Reviews
upper seal kit by William - East new Market, MarylandAugust 10, 2010
fast shipping.got on the day i was told it would arrive.will use iboats for all my boating accesories.great dealing with them.look forward to dealing with in near future.thanks iboats.
(2 of 2 people found this review helpful)
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No Review for Water Tube - Sierra
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Based On 1 Review
parts by Keith - Ozark, AlabamaAugust 01, 2011
Very good quality parts and a very smooth transaction .
(1 of 1 people found this review helpful)
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No Review for Upper Housing Ring - Sierra
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No Review for Upper Unit Gear Set - Sierra
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Average Customer Review for Upper Drive Washer - Sierra
Based On 1 Review
pinion washer by a Customer - Mobile, AlabamaMay 08, 2013
as advertised
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No Review for Carrier Assembly Oil Seal - Sierra
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No Review for Welch Plug - 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 Shim Kit - Sierra
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No Review for Tapered Roller Bearing - Sierra
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No Review for Water Pocket Cover Gasket - Sierra
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Average Customer Review for U-Joint - Sierra
Based On 1 Review
Review for Sierra 18-2104 U-Joint by a CustomerFebruary 21, 2009
nice and way cheaper than i can buy them here for
(2 of 2 people found this review helpful)
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Average Customer Review for O-Ring - Sierra
Based On 2 Reviews
Smooth transaction by William - Cincinnati, OhioAugust 14, 2012
easy
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Average Customer Review for Yoke Assembly - Sierra
Based On 1 Review
works ok by Chris - Ramona, CaliforniaAugust 05, 2011
Part fit ok but the quality of the metal isnt that great. hopefully i get some years out of it
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No Review for Shim Kit for Mercruiser 15-35980A1, GLM 23280 - Sierra
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No Review for Drive Shaft Assembly for Mercruiser, GLM 28050 - Sierra
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No Review for Upper Unit Gear Set for Mercruiser 43-18410A2 43-18411A2, GLM 11210 - Sierra
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No Review for Tapered Roller Bearing - Sierra
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No Review for Water Pump Housing Bushing - Sierra
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No Review for U-Joint Center Socket - Sierra
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Average Customer Review for Cap Upper Drive Unit - Sierra
Based On 1 Review
cap by Keith - Ozark, AlabamaJuly 19, 2011
Haven't gotten it all put together , but im sure it will be a fine product.
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No Review for Water Tube - Sierra
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No Review for Oil Seal - Sierra
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No Review for Mr / Alpha Water Pocket Screw - Sierra
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No Review for Upper Unit Gear Set - Sierra
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No Review for Upper Drive Shaft Top Cover Screw for Mercruiser 10-98794, GLM 28300 - Sierra
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No Review for Long Yoke - Sierra
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No Review for Upper Gear Set - Sierra
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No Review for O-Ring - Sierra
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Based On 1 Review
Mercruiser shim kit by a Customer - Mobile, AlabamaMay 08, 2013
shims as advertised
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Average Customer Review for Drain Plug - Sierra
Based On 4 Reviews
Review for Sierra 18-2244 Drain Plug by a CustomerSeptember 04, 2009

(1 of 2 people found this review helpful)
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No Review for O-Ring - Sierra
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No Review for Upper Gear Set - Sierra
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Based On 2 Reviews
pinion nut by a Customer - Mobile, AlabamaMay 08, 2013
as advertised
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No Review for Mr Alpha Housing Plug for Mercruiser 19-47579, GLM 21890 - Sierra
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No Review for Oil Seal - Sierra
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No Review for Drive Shaft for Mercruiser 45-55796, GLM 11130 - Sierra
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No Review for O-Rings - Sierra
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No Review for Welch Plug - Sierra
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No Review for Upper Gear Set for Mercruiser 43-803114T1, GLM 11235 - Sierra
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Average Customer Review for Drive Shaft Housing Retaining Nut - Sierra
Based On 1 Review
Drive shaft retainer nut by Jim - Mooresville, IndianaNovember 26, 2012
Fit perfect
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No Review for Mallory Gear Repair Kit, Upper (1.98:1) 9-79203
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No Review for Mallory Gear Repair Kit, Upper (1.50:1) 9-79202
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No Review for Mallory washer 9-78107
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No Review for Mallory Ring, Upper Unit Spacer 9-78105
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No Review for Mallory Seal, Carrier U-joint 9-78100
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No Review for Mallory O-Ring 9-76568
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No Review for Mallory O-Ring 9-76551
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No Review for Mallory O-Ring 9-76546
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No Review for Mallory O-Ring 9-76505
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No Review for Mallory Oil Seal 9-76130
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No Review for Mallory Oil Seal 9-76102
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No Review for Mallory Seal Kit, Upper Gear Housing 9-74303
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No Review for Mallory Drain Plug 9-72650
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No Review for Mallory Drive Shaft 9-72461
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No Review for Mallory U-joint 9-72404
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No Review for Mallory Center Socket 9-72403
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No Review for Mallory Yoke, Long 9-72401
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No Review for Mallory Yoke 9-72400
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No Review for Mallory Retaining Nut, Dr Shft Hsg 9-72154
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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 Water Pocket Cover Gasket 9-60037
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No Review for Mallory Water Pump Housing Seal 9-43604
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No Review for DRIVESHAFT - Mallory
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Bearing Kit for Mercruiser 31-35988A2 31-35988A12, GLM 21520 - Sierra

Bearing Kit for Mercruiser 31-35988A2 31-35988A12, GLM 21520 - Sierra
Sale Price: $115.99
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Part # 18-1160
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Part # 18-1160
Replaces OEM part #

  • MERCURY MARINE 31-35988A2
  • MERCURY MARINE 31-35988A12
GLM 21423 replacement parts

Part # 18-3236
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Part # 18-3236
Replaces OEM part #

  • MERCURY MARINE 23-32632
For: Mercruiser #1 R/MR/Alpha Drives
GLM 87500 replacement parts

Upper Unit Seal Kit - Sierra
Sale Price: $15.99
Save: $23.00
(58% Off $38.99)
Part # 18-2648


Part # 18-2648
Replaces OEM part #

  • MERCURY MARINE 26-32511A1
For: Mercruiser #1 Units (Including ALPHA) (Also fits 888 Stern drive) S/N 3106717 & UP
Kit Contains:
    (2) 18-2945 Gear Hsg. Drain Screw Gasket - replaces O.E. # 12-19183
    (1) 18-0894 Water Pocket Cover Gasket - replaces O.E. # 27-55810
    (1) 18-2003 Oil Seal - replaces O.E. # 26-68493
    (1) 18-2049 Oil Seal - replaces O.E. # 26-32511
    (1) 18-2056 Oil Seal - replaces O.E. # 26-96503
    (1)18-2944 Seal Ring - replaces O.E. # 26-45577
    (1) 18-3110 Bushing - replaces O.E. # 26-38970
    (2) 18-7153 O-Ring - replaces O.E. # 25-25439
    (1) 18-7161 O-Ring - replaces O.E. # 25-32546
    (1) 18-7169 O-Ring - replaces O.E. # 25-70937
    (1) 18-7445 O-Ring - replaces O.E. # 25-55801
Mercury Marine 32-54236 replacement parts

Water Tube - Sierra
Sale Price: $8.99
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(14% Off $10.49)
Part # 18-3220
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Part # 18-3220
Replaces OEM part #

  • MERCURY MARINE 32-54236
For #1 -R/MR/Alpha
GLM 11245 replacement parts

Upper Gear Set for Mercruiser 43-803101T1, GLM 11245 - Sierra
Sale Price: $513.99
Save: $95.01
(15% Off $609.00)
Part # 18-2259


Part # 18-2259
Replaces OEM part #

  • MERCURY MARINE 43-803101T1
For: Mercruiser 120/140 Drives with 1.91:1 Gear Ratio.
Kit Contains:
    (1) 18-2205 Gear Set - replaces O.E. # 43-55778A3
    (1) 18-2648 Seal Kit - replaces O.E. # 26-32511A2
    (1) 18-2619-1 Outdrive Gasket Set - replaces O.E. # 27-94996A1
    (1) 18-2820 Drive Shaft Housing to Bell Housing Gasket - replaces O.E. # 27-64818
    (1) 18-1160 Bearing - replaces O.E. # 31-35988A2
    (1) 18-1161 Bearing - replaces O.E. # 31-35990A1
    (1) 18-1165 Bearing - replaces O.E. # 31-61100A1
    (1) 18-2743 Drive Shaft Housing to Bell Housing Gasket - replaces O.E. # 27-94996-2
Upper Housing Ring - Sierra

Upper Housing Ring - Sierra
Sale Price: $9.99
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(14% Off $11.69)
Part # 18-4296
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Part # 18-4296
Replaces OEM part #

  • MERCURY MARINE 35983
For Upper Housing
Upper Unit Gear Set - Sierra

Upper Unit Gear Set - Sierra
Sale Price: $272.99
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(11% Off $309.00)
Part # 18-2204
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Part # 18-2204
Replaces OEM part #

  • MERCURY MARINE 43-75325A3
For:
    Mercruiser V-6 and 470/485 (4 Cyl. etc.) and Gen II (S/N K999999 & BELOW) with 1.84:1 Gear Ratio (Drive Gear = 17 teeth, Driven Gear = 19 teeth).
Mercruiser Carrier Nut Washers

Upper Drive Washer - Sierra
Sale Price: $1.99
Part # 18-3712


Part # 18-3712
Replaces OEM part #

  • MERCURY MARINE 12-45810
GLM 28370 replacement parts

Carrier Assembly Oil Seal - Sierra
Sale Price: $39.99
Save: $12.00
(23% Off $51.99)
Part # 18-0577
Hurry! Only 1 left in stock
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Part # 18-0577
Replaces OEM part #

  • MERCURY MARINE 66081A2
Mercruiser Welch Plugs

Welch Plug - Sierra
Sale Price: $5.99
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Part # 18-4272
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Part # 18-4272
Replaces OEM part #

  • MERCURY MARINE 19-32652
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 23270 replacement parts

Shim Kit - Sierra
Sale Price: $8.99
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(14% Off $10.49)
Part # 18-2293
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Part # 18-2293
Replaces OEM part #

  • MERCURY MARINE 15-36178A-1
Upper Bearing Shims
Kit Contains: (1) each .002, .003, .015, & (2) each .010 shims
Mercury Marine 31-61100A1 replacement parts

Tapered Roller Bearing - Sierra
Sale Price: $26.99
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(15% Off $31.99)
Part # 18-1165
Hurry! Only 1 left in stock
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Part # 18-1165
Replaces OEM part #

  • MERCURY MARINE 31-61100A1
Water Pocket Cover Gasket - Sierra

Water Pocket Cover Gasket - Sierra
Sale Price: $2.99
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Part # 18-0894-9
Hurry! Only 1 left in stock
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Part # 18-0894-9
Replaces OEM part #

  • MERCURY MARINE 27-55810
  • MERCURY MARINE 27-55810-1
Package of 2
Volvo-Penta U-Joints

U-Joint - Sierra
Sale Price: $33.99
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Part # 18-2104


Part # 18-2104
Replaces OEM part #

  • MERCURY MARINE 75832A2
  • MERCURY MARINE 75832T
  • OMC 3850812
  • OMC 912214
  • OMC 915716
  • VOLVO 853255-8
  • VOLVO 897707-6
For: OMC Cobra Drives (1986-89) and all Mercruiser #1 and ALPHA I Units S/N 1684188-B418818, also Mercruiser TR/TRS and II SSM.
Includes straight grease fitting and 90 degree fitting (Rockwell)

For: Volvo AQ200, 250, 270, 280, 290 (Rockwell)
Mercury Marine 25-32546 replacement parts

O-Ring - Sierra
Sale Price: $8.99
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Part # 18-7161-9
Hurry! Only 1 left in stock


Part # 18-7161-9
Dimensions ( in )
I.D. 3.250
Width .070

Replaces OEM part #

  • MERCURY MARINE 25-32546
Mercury Marine 46021-1 replacement parts

Yoke Assembly - Sierra
Sale Price: $59.99
Save: $15.00
(20% Off $74.99)
Part # 18-2125


Part # 18-2125
Replaces OEM part #

  • MERCURY MARINE 46020T
  • MERCURY MARINE 46021 1
For: Mercruiser #1/Alpha Units (S/N 1684188 - OK999999)
Shim Kit for Mercruiser 15-35980A1, GLM 23280 - Sierra

Shim Kit for Mercruiser 15-35980A1, GLM 23280 - Sierra
Sale Price: $10.99
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Part # 18-2292
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Part # 18-2292
Replaces OEM part #

  • MERCURY MARINE 15-35980A-1
Drive Gear Shims
Kit Contains: (1) each .002, .003, .005, .005, .010, & .025 shims
GLM 28050 replacement parts

Drive Shaft Assembly for Mercruiser, GLM 28050 - Sierra
Sale Price: $318.99
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(45% Off $584.00)
Part # 18-9218
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Part # 18-9218
Replaces OEM part #

  • MERCURY MARINE 814819A2
For: All Mercruiser #1, R/MR/ALPHA Gen II (OK999999 & Below) (1971-97)
Mercury Marine 43-18411A2 replacement parts

Upper Unit Gear Set for Mercruiser 43-18410A2 43-18411A2, GLM 11210 - Sierra
Sale Price: $350.99
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(20% Off $444.00)
Part # 18-2201
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Part # 18-2201
Replaces OEM part #

  • MERCURY MARINE 43-18410A2
  • MERCURY MARINE 43-18411A2
For:
    Most Mercruiser V-8 Drives and Gen II(S/N OK999999 & Below) with 1.5:1 Gear Ratio(Drive Gear = 22 teeth, Driven Gear = 20 teeth). Also fits Mercruiser stern drive models: 225 (S/N 3856268 - 4200499), 260 (S/N 4898730 - 6225576), 898/228 (S/N 4782330 - 6225576), 888 (S/N 3106717 & UP), V8/MR/Alpha One (S/N 6225577 & UP).
Kit Includes:
    (1) 18-1142 Upper Pinion Bearing - replaces O.E. # 31-32573A1
Johnson / Evinrude / OMC 983891 replacement parts

Tapered Roller Bearing - Sierra
Sale Price: $30.99
Save: $5.50
(15% Off $36.49)
Part # 18-1161
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Part # 18-1161
Replaces OEM part #

  • OMC 983891
  • MERCURY MARINE 31-35990A1
Mercury Water Pump Housings

Part # 18-3110
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Part # 18-3110
Replaces OEM part #

  • MERCURY MARINE 26-38970
  • Part of 18-3116 Housing
Volvo / OMC 912213 replacement parts

U-Joint Center Socket - Sierra
Sale Price: $54.99
Save: $10.00
(15% Off $64.99)
Part # 18-2128
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Part # 18-2128
Replaces OEM part #

  • MERCURY MARINE 39383 1
  • MERCURY MARINE 39383T
  • OMC 912213
For: All OMC Cobra & Mercruiser IA/IB/IC & EZ, MC-I, R, MR, Alpha One, Gen II (OL949778 & below), Bravo (OM111207 & below), MC II & TS
Mercury Marine 94998A2 replacement parts

Cap Upper Drive Unit - Sierra
Sale Price: $90.99
Save: $23.01
(20% Off $114.00)
Part # 18-2381


Part # 18-2381
Replaces OEM part #

  • MERCURY MARINE 94998A 4
  • MERCURY MARINE 94998A2
For: Mercruiser Alpha I, except Gen II, (S/N 6225577 & Later).
Water Tube - Sierra

Water Tube - Sierra
Sale Price: $27.99
Save: $8.00
(22% Off $35.99)
Part # 18-3219
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Part # 18-3219
Replaces OEM part #

  • MERCURY MARINE 42724A3
For: Mercruiser I and Alpha I drives. Models: I, 1A,1B, 1C, 1CEZ, 120, 140, 160, 165, 888, 898, 228, 225-S, 233, 250, 260, 470, 485, R, MR, & Alpha. Comes with (4) 10-3229 Bolt - replaces O.E. # 10-28668.
Mercury Marine 26-68493 replacement parts-Oil Seal - Sierra

Oil Seal - Sierra
Sale Price: $11.99
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(35% Off $18.49)
Part # 18-2003
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Part # 18-2003
Shaft Size - 2.250"
Outer Diameter - 3.000"
Width - 0.437

Replaces OEM part #

  • MERCURY MARINE 26-68493
  • MERCURY MARINE 26-823894
GLM 22440 replacement parts

Mr / Alpha Water Pocket Screw - Sierra
Sale Price: $3.99
Save: $2.70
(40% Off $6.69)
Part # 18-3229-9
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Part # 18-3229-9
Replaces OEM part #

  • MERCURY MARINE 10-28668
For MR/Alpha
Pkg. of 5
Mercury Marine 43-55778A3 replacement parts

Upper Unit Gear Set - Sierra
Sale Price: $240.99
Save: $63.01
(20% Off $304.00)
Part # 18-2205
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Part # 18-2205
Replaces OEM part #

  • MERCURY MARINE 43-55778A3
For:
    120/140 (S/N 2791957 & UP) and Gen II (S/N K999999 & BELOW) with 1.98:1 Gear Ratio (Drive Gear = 20 teeth Driven Gear = 24 teeth).
GLM 28300 replacement parts

Part # 18-3231
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Part # 18-3231
Replaces OEM part #

  • MERCURY MARINE 10-98794
Mercury Marine 59830 A7 replacement parts

Long Yoke - Sierra
Sale Price: $101.99
Save: $22.01
(17% Off $124.00)
Part # 18-2146
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Part # 18-2146
Replaces OEM part #

  • MERCURY MARINE 59830A1
  • MERCURY MARINE 59830A 7
  • OMC 912212
  • OMC 3850815
For: All OMC Cobra (1986-Up) & all Mercruiser #1, R, MR, Aplha I, Alpha I Gen II, Bravo & Blackhawk
Mercury Marine 43-803116T1 replacement parts

Upper Gear Set - Sierra
Sale Price: $536.99
Save: $102.01
(15% Off $639.00)
Part # 18-2256
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Part # 18-2256
Replaces OEM part #

  • MERCURY MARINE 43-803116T1
For: Most Mercruiser V-8 Drives with (1.5:1)
Kit Contains:
    (1) 18-2201 Upper Unit Gear Set - replaces O.E. # 43-18410A2
    (1) 18-2648 Seal Kit - replaces O.E. # 26-32511A2
    (1) 18-2619-1 Outdrive Gasket Set - replaces O.E. # 27-94996A1
    (1) 18-2820 Drive Shaft Housing to Bell Housing Gasket - replaces O.E. # 27-64818
    (1) 18-2743 Drive Shaft Housing to Bell Housing Gasket 27-94996-2
    (1) 18-1160 Bearing - replaces O.E. # 31-35988A2
    (1) 18-1165 Bearing - replaces O.E. # 31-61100A1
    (1) 18-1142 Bearing - replaces O.E. # 31-35990A1
Johnson / Evinrude / OMC 911851 replacement parts

O-Ring - Sierra
Sale Price: $3.99
Save: $3.50
(46% Off $7.49)
Part # 18-7153-9
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Part # 18-7153-9
Pkg of 5

Dimensions ( in )
I.D. .0860
Width .100

Replaces OEM part #

  • OMC 3852565
  • OMC 911851
  • MERCURY MARINE 25-21836
Shim Kit for Mercruiser 15-45691A1, GLM 23260 - Sierra

Shim Kit for Mercruiser 15-45691A1, GLM 23260 - Sierra
Sale Price: $7.99
Save: $0.70
(8% Off $8.69)
Part # 18-2283


Part # 18-2283
Replaces OEM part #

  • MERCURY MARINE 15-45691A1
Kit Contains: (1) each .002, .003, .005, & .010 shims
Mercruiser Lower Unit Drain Plugs

Drain Plug - Sierra
Sale Price: $1.99
Save: $0.70
(26% Off $2.69)
Part # 18-2244


Part # 18-2244
Replaces OEM Part #

  • MERCURY MARINE 10-79953A2
For: Mercruiser #1/R/MR/Alpha I Gen II (Both Upper and Lower Units)
Johnson / Evinrude / OMC 911686 replacement parts

O-Ring - Sierra
Sale Price: $10.99
Save: $3.00
(21% Off $13.99)
Part # 18-7169-9
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Part # 18-7169-9
Dimensions ( in )
I.D. 3.500
Width .135

Replaces OEM part #

  • CHRYSLER FORCE 25-F24278
  • OMC 911686
  • MERCURY MARINE 25-70937
GLM 11225 replacement parts

Upper Gear Set - Sierra
Sale Price: $593.99
Part # 18-2257
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Part # 18-2257
Replaces OEM part #

  • MERCURY MARINE 43-803112T1
For: Mercruiser 6 Cylinder Inline with 1.65:1 Gear Ratio
Kit Contains:
    (1) 18-2203 Gear Set - replaces O.E. # 43-45814A5
    (1) 18-2648 Seal Kit - replaces O.E. # 26-32511A2
    (1) 18-2619-1 Outdrive Gasket Set - replaces O.E. # 27-94996A1
    (1) 18-2820Drive Shaft Housing to Bell Housing Gasket - replaces O.E. # 27-64818
    (1) 18-1160 Bearing - replaces O.E. # 31-35988A2
    (1) 18-1161 Bearing - replaces O.E. # 31-35990A1
    (1) 18-1165 Bearing - replaces O.E. # 31-61100A1
    (1) 18-2743 Drive Shaft Housing to Bell Housing Gasket - replaces O.E. # 27-94996-2
Upper Unit Gear Set - Sierra

Upper Unit Gear Set - Sierra
Sale Price: $334.99
Part # 18-2203
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Part # 18-2203
Replaces OEM part #

  • MERCURY MARINE 43-45814A5
For:
    Mercruiser 6 Cyl. Inline (S/N K999999 & BELOW) with 1.65:1 Gear Ratio (Drive Gear = 24 teeth, Driven Gear = 24 teeth)
Nut for Mercruiser 11-22339, GLM 28360 - Sierra

Nut for Mercruiser 11-22339, GLM 28360 - Sierra
Sale Price: $2.99
Save: $0.70
(18% Off $3.69)
Part # 18-3713


Part # 18-3713
Replaces OEM part #

  • MERCURY MARINE 11-22339
5/8" - 18
Mr Alpha Housing Plug for Mercruiser 19-47579, GLM 21890 - Sierra

Mr Alpha Housing Plug for Mercruiser 19-47579, GLM 21890 - Sierra
Sale Price: $3.99
Save: $1.50
(27% Off $5.49)
Part # 18-3232-9
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Part # 18-3232-9
Replaces OEM part #

  • MERCURY MARINE 19-47579
Package of 5
For: Mercruiser MR ALPHA
GLM 85020 replacement parts

Oil Seal - Sierra
Sale Price: $12.99
Save: $2.50
(16% Off $15.49)
Part # 18-2049
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Part # 18-2049
Shaft Size - 1.250"
Outer Diameter - 2.005"
Width - 0.388"

Replaces OEM part #

  • MERCURY MARINE 26-32511
GLM 11130 replacement parts

Drive Shaft for Mercruiser 45-55796, GLM 11130 - Sierra
Sale Price: $83.99
Save: $20.01
(19% Off $104.00)
Part # 18-2179
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Part # 18-2179
Replaces OEM part #

  • MERCURY MARINE 45-55796
GLM 85060 replacement parts

Oil Seal - Sierra
Sale Price: $8.99
Save: $1.70
(15% Off $10.69)
Part # 18-2056
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Part # 18-2056
Shaft Size - 0.875"
Outer Diameter - 1.375"
Width - 0.250"

Replaces OEM part #

  • MERCURY MARINE 26-96503 1
  • MERCURY MARINE 26-66302
Mercury Marine 25-55801 replacement parts

O-Rings - Sierra
Sale Price: $1.99
Save: $1.50
(42% Off $3.49)
Part # 18-7445-9
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Part # 18-7445-9
Dimensions ( in )
I.D. .801
Width .070

Replaces OEM part #

  • MERCURY MARINE 25-55801
GLM 22031 replacement parts

Welch Plug - Sierra
Sale Price: $1.99
Save: $0.30
(13% Off $2.29)
Part # 18-4273
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Part # 18-4273
Replaces OEM part #

  • MERCURY MARINE 19-42682
GLM 11235 replacement parts

Part # 18-2258
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Part # 18-2258
Replaces OEM part #

  • MERCURY MARINE 43-803114T1
For: Mercruiser V-6(470/485) with 1.84:1 Gear Ratios.
Kit Contains:
    (1) 18-2204 Gear Set - replaces O.E. # 43-75325A3
    (1) 18-2648 Seal Kit - replaces O.E. # 26-32511A2
    (1) 18-2619-1 Outdrive Gasket Set - replaces O.E. # 27-94996A1
    (1) 18-2820 Drive Shaft Housing to Bell Housing Gasket - replaces O.E. # 27-64818
    (1) 18-1160 Bearing - replaces O.E. # 31-35988A2
    (1) 18-1161 Bearing - replaces O.E. # 31-35990A1
    (1) 18-2743 Drive Shaft Housing to Bell Housing Gasket - replaces O.E. # 27-94996-2
    (1) 18-1165 Bearing - replaces O.E. # 31-61100A1
GLM 28350 replacement parts

Drive Shaft Housing Retaining Nut - Sierra
Sale Price: $20.99
Save: $4.00
(16% Off $24.99)
Part # 18-3752


Part # 18-3752
Replaces OEM part #

  • MERCURY MARINE 816811 2
  • MERCURY MARINE 816811-1
Mallory Gear Repair Kit, Upper (1.98:1) 9-79203

Mallory Gear Repair Kit, Upper (1.98:1) 9-79203*
Sale Price: $461.69
Save: $78.30
(14% Off $539.99)
Part # 9-79203
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):43-803101T 1
Fits Application:20-24 teeth, MR/Alpha I, 1983-90
Mallory Gear Repair Kit, Upper (1.50:1) 9-79202

Mallory Gear Repair Kit, Upper (1.50:1) 9-79202*
Sale Price: $476.09
Save: $103.90
(17% Off $579.99)
Part # 9-79202
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):43-803116T 1
Fits Application:20-22 teeth, MR/Alpha I, 1983-90
Mallory washer 9-78107

Mallory washer 9-78107*
Sale Price: $1.79
Part # 9-78107
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):12-45810
Fits Application:Upper unit drive gear
Mallory Ring, Upper Unit Spacer 9-78105

Mallory Ring, Upper Unit Spacer 9-78105*
Sale Price: $8.99
Save: $2.50
(21% Off $11.49)
Part # 9-78105
Hurry! Only 1 left in stock
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):35983
Fits Application:Upper Unite gear assy.
Mallory Seal, Carrier U-joint 9-78100

Mallory Seal, Carrier U-joint 9-78100*
Sale Price: $43.19
Save: $12.80
(22% Off $55.99)
Part # 9-78100
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Replaces GLM #:28370
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):66081A 2
Fits Application:Upper unit, MC-1,R.MR.Alpha I, Gen II
Mallory O-Ring 9-76568

Mallory O-Ring 9-76568*
Sale Price: $0.89
Save: $0.70
(44% Off $1.59)
Part # 9-76568
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):25-55801
Mallory O-Ring 9-76551

Mallory O-Ring 9-76551*
Sale Price: $2.69
Part # 9-76551
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):25-70937
Mallory O-Ring 9-76546

Mallory O-Ring 9-76546*
Sale Price: $1.79
Save: $0.40
(18% Off $2.19)
Part # 9-76546
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):25-32546
Mallory O-Ring 9-76505

Mallory O-Ring 9-76505*
Sale Price: $0.89
Save: $0.30
(25% Off $1.19)
Part # 9-76505
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):25-25439
Mallory Oil Seal 9-76130

Mallory Oil Seal 9-76130*
Sale Price: $8.09
Save: $2.40
(22% Off $10.49)
Part # 9-76130
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Replaces Original Equipment Manufacturer(OEM):Mercruiser / Mercury
Replaces Original Equipment Manufacturer # (OEM #):26-96503-1
Fits Application:Mercruiser upper unit driven gear
Mallory Oil Seal 9-76102

Mallory Oil Seal 9-76102*
Sale Price: $12.59
Save: $3.40
(21% Off $15.99)
Part # 9-76102
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Replaces GLM #:85030
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):26-68493, 26-823894
Fits Application:Mercruiser U-joint short yoke
Mallory Seal Kit, Upper Gear Housing 9-74303

Mallory Seal Kit, Upper Gear Housing 9-74303*
Sale Price: $27.89
Save: $9.10
(24% Off $36.99)
Part # 9-74303
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Replaces GLM #:87500
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):26-32511A1
Fits Application:R/MR/Alpha 1
Mallory Drain Plug 9-72650

Mallory Drain Plug 9-72650*
Sale Price: $2.69
Save: $1.30
(32% Off $3.99)
Part # 9-72650
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Replaces GLM #:22420
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):10-79953A2
Fits: All MC-I, Alpha I, Gen II, TR & TRS
Mallory Drive Shaft 9-72461

Mallory Drive Shaft 9-72461*
Sale Price: $71.09
Save: $20.90
(22% Off $91.99)
Part # 9-72461
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Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):45-55796
Fits Application:Upper unit I/R/MR/Alpha I
Mallory U-joint 9-72404

Mallory U-joint 9-72404*
Sale Price: $40.49
Save: $11.00
(21% Off $51.49)
Part # 9-72404
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Replaces Original Equipment Manufacturer(OEM):Mercruiser / OMC/ Volvo
Replaces Original Equipment Manufacturer # (OEM #):75832T / 915716 / 897707-6
Fits: Mercruiser IA/IB/IC & EZ,MC-I,R,MR Alpha I
Mallory Center Socket 9-72403

Mallory Center Socket 9-72403*
Sale Price: $48.59
Save: $14.40
(22% Off $62.99)
Part # 9-72403
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Replaces GLM #:28100
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):39383-1
Mallory Yoke, Long 9-72401

Mallory Yoke, Long 9-72401*
Sale Price: $91.79
Save: $27.16
(22% Off $118.95)
Part # 9-72401
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Replaces GLM #:28315
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):814819A3
fits: Most Mercruiser, OMC Cobra,Vovo SX drives
Mallory Yoke 9-72400

Mallory Yoke 9-72400*
Sale Price: $55.79
Save: $16.20
(22% Off $71.99)
Part # 9-72400
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Replaces GLM #:28310
Replaces Original Equipment Manufacturer(OEM):Mercruiser
Replaces Original Equipment Manufacturer # (OEM #):46020-1
Mercury Marine 816811-2 replacement parts

Mallory Retaining Nut, Dr Shft Hsg 9-72154*
Sale Price: $18.89
Save: $5.10
(21% Off $23.99)
Part # 9-72154
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Replaces GLM #:28350
Replaces Original Equipment Manufacturer(OEM):MERCRUISER
Replaces Original Equipment Manufacturer # (OEM #):816811 2
Fits Application: V-6, MR, Alpha
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 Water Pocket Cover Gasket 9-60037

Part # 9-60037
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):27-55810
Fits Application:MC-1,R,MR.Alpha I
Mallory Water Pump Housing Seal 9-43604

Part # 9-43604
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Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):26-38970
Fits Application:OB & Sterndrive
DRIVESHAFT - Mallory

DRIVESHAFT - Mallory*
Sale Price: $422.09
Save: $124.49
(22% Off $546.58)
Part # 9-72463
Hurry! Only 1 left in stock
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Part # 9-72463
9-72463
Drive Shaft
Replaces: Mercruiser 45-853648
Fits: Alpha One Gen II 1998-Up
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