Mercruiser Upper Unit Gear Repair Kits

Your Price: $584.46
Save: $88.17
(13% Off $672.63)
Part # 18-2358
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 43-803102T1
For: Mercruiser drives with 20-22 Teeth: 1.50:1 Gear Ratios(1.47:1*)
* Gen II applications serial number range up to OK999999 only
Your Price: $504.41
Save: $68.22
(11% Off $572.63)
Part # 18-2363
SHIPS TOMORROW!* if ordered in 19 hrs 55 mins.
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 43-803118T1
For: Mercruiser Drives with 20-24 Teeth: 1.98:1 Gear Ratios (1.94/2.40:1*)
* Gen II applications serial number range up to OK999999 only
Your Price: $533.96
Save: $59.72
(10% Off $593.68)
Part # 18-2364
SHIPS TOMORROW!* if ordered in 19 hrs 55 mins.
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 43-803119T1
For: Mercruiser Drives with 24-24 Teeth: 1.65:1 Gear Ratio(1.62:1*)
* Gen II applications serial number range up to OK999999 only
Your Price: $442.75
Save: $135.14
(23% Off $577.89)
Part # 18-2365
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 43-803120T1
For: Mercruiser Drives with 17-19 Teeth: 1.84:1 Gear Ration (1.81:1*)
* Gen II applications serial number range up to OK999999 only
Your Price: $434.83
Save: $237.80
(35% Off $672.63)
Part # 18-2256
SHIPS TOMORROW!* if ordered in 19 hrs 55 mins.
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
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
Your Price: $515.33
Save: $67.83
(11% Off $583.16)
Part # 18-2257
SHIPS TOMORROW!* if ordered in 19 hrs 55 mins.
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
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
Your Price: $401.45
Save: $150.13
(27% Off $551.58)
Part # 18-2258
SHIPS TOMORROW!* if ordered in 19 hrs 55 mins.
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
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
Your Price: $496.85
Save: $257.49
(34% Off $754.34)
Part # 18-2259
SHIPS TOMORROW!* if ordered in 19 hrs 55 mins.
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
Your Price: $499.34 (Out of stock)
Save: $31.19
(5% Off $530.53)
Part # 18-6350K
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 43-803104T1
For: Mercruiser Gen II (1998 & Up)(S/N OL100040 & Up) with 1.62:1 and 2.00:1 Gear Ratios
(Out Of Stock)
Low Price Guarantee
Your Price: $570.95
Save: $33.26
(5% Off $604.21)
Part # 18-6351K
SHIPS TOMORROW!* if ordered in 19 hrs 55 mins.
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 43-803103T1
For: Mercruiser Gen II (1998 & Up)(S/N OL100040 & Up) with 1.47:1 Gear Ratio
Your Price: $460.26
Save: $38.69
(7% Off $498.95)
Part # 18-6352K
SHIPS TOMORROW!* if ordered in 19 hrs 55 mins.
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 43-803106T1
For: Mercruiser Gen II (1998 & Up)(S/N OL100040 & Up) with 1.94:1 and 2.40:1 Gear Ratios
Your Price: $497.25
Save: $12.22
(2% Off $509.47)
Part # 18-6353K
SHIPS TOMORROW!* if ordered in 19 hrs 55 mins.
Hurry! Only 1 left in stock
No Reviews  |  Write Review  |  Ask Question
Replaces OEM part #
  • MERCURY MARINE 43-803105T1
For: Mercruiser Gen II (1998 & Up)(S/N OL100040 & Up) with 1.81:1 Gear Ratio
Sierra
Average Customer Review for Upper Gear Set - 18-2259 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 2 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarExcellent thanks
by Susanna from Duck Lake, Saskatchewan on July 23, 2015
It contains everything that i needed to rebiuld the upper part of the leg. All the gaskets o-rings and bearings that need to come apart to change the gears are included
(1 of 1 people found this review helpful)
Was this review helpful?
Full StarFull StarFull StarFull StarFull Starparts
by Keith from Ozark, Alabama on August 01, 2011
Very good quality parts and a very smooth transaction .
(2 of 2 people found this review helpful)
Was this review helpful?
This product ships in 1 to 3 business days.
Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies