Mercruiser Outdrive Parts Drawings *How to Videos

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Mercruiser gear set for upper or lower unit gearcase

GLM Marine Products aftermarket gears for upper gearcase
and lower units all models

  • Outdrive forward, pinion and reverse gears for all models including MC-1/R/MR and Alpha 1/Gen 2
  • Compatible with 120/140 4 cylinder, inline 6 cylinder, V6, 5.0 / 5.7 V8 motors
  • Upper and lower unit gear sets with bearings and shims
  • Ratios, years and serial numbers
  • See our application chart for lower and upper units for help with choosing the right one for your model Limited selection of used gears also available

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11210 Mercruiser

11210 Mercruiser

upper housing
P/N 11210 Heavy duty gear set 20/22 #43-18411A2 $349.15
Includes P/N 21560 Driven roller bearing #31-32573A1
Compatible with all V8 outdrives (1971 - 1997) 1.50 or 1.47 ratio
Serial numbers 3106717 - 0K999999

11214

11214

P/N 11214 1.47 20/22 ratio drive shaft housing gear set #43-853641A2 $349.15
Includes P/N 21560 Bearing #31-32573A1 Compatible with Alpha 1 Gen 2 (1998 and up)
Serial numbers 0L000040 - up

11240

11240

P/N 11240 1.98 or 1.94 overall 20/24 ratio gear set #43-55778A3 $259.15
Compatible with all 4 cylinder sterndrive models (1970 and up)
Serial numbers 2791957 - 0K999999

11244

11244

P/N 11244 1.94 & 2.4 ratio 20/24 #43-853642A2 $349.15
Compatible with Alpha 1 Gen 2 (1998 and up) Serial numbers 0L000040 - up

11230

11230

P/N 11230 1.84 or 1.81 overall 17/19 ratio outdrive upper housing
#43-75325A3 $259.15
Compatible with all V6 and 470/485 models (1976 - 1997)
Serial numbers 4208730 - 0K999999

11233

11233

P/N 11233 1.81 ratio gear set 17/19 #43-853643A2 $359.15
Compatible with Alpha 1 Gen 2 outdrive (1998 and up) Serial numbers 0L000040 - up

11220

11220

P/N 11220 1.65 or 1.62 ratio upper gears 24/24 #43-45814A5 $299.15
Compatible with all inline 6 cylinder engines years 1970 to 1997 serial numbers 2763442 - 0K999999

11222

11222

P/N 11222 1.62 & 2.0 ratio gear set 24/24 #43-853640A2 $349.15
Works with all Alpha 1 Gen 2 models (1998 and up) Serial numbers 0L000040 - up

Complete Rebuild Kits
Click on picture for included items and for model / motor compatibility
P/N 11215 1.50 & 1.47 ratio gear set 20/22 #43-803116T1 $459.15
(1971 - 1990) Serial numbers 3106717 - 0D4690000

P/N 11225 1.65 & 1.62 ratio gear set 24/24 #43-803112T1 $499.15
(1970 - 1990) Serial numbers 2763442 - 0D4690000

P/N 11235 1.84 & 1.81 ratio gear set 17/19 #43-8033114T1 $459.15
(1976 - 1990) Serial numbers 4208730 - 0D4690000

P/N 11245 1.98 & 1.94 ratio gear set 20/24 #43-803101T1 $479.15
(1970 - 1990) serial numbers 2791957 - 0D4690000

11247 Teeth 20-24 ratio 2.4 or 1.94 years 1998 and up

11247 Teeth 20-24 ratio 2.4 or 1.94 years 1998 and up

P/N 11247 Teeth 20-24 ratio 2.4 or 1.94 years 1998 and up $349.15

11236

11236

P/N 11236 1.84 or 1.81 ratio 17-19 years 1991-1997 #43-803120T1 $499.15

11100 Compatible with all 4 cylinder

11100 Compatible with all 4 cylinder

lower unit

P/N 11100 Pinion and forward sterndrive gears OEM 43-96084A7 $399.15
Compatible with all 4 cylinder, 6 cylinder and V8 Mercruiser MC-1/R models years 1972 to 1983 serial numbers 3469428 - 6225576

11091 MR Alpha 1 1984 up

11091 MR Alpha 1 1984 up

P/N 11091 Pinion and forward set - 13:21 gear ratio $399.15
Can be installed on all MR/Alpha 1 and Gen 2 outdrives (1984 and up) except 2.40 ratio includes P/N 21590 tapered roller bearing #31-35928T1. The forward gear has a retaining ring installed to prevent the needle bearing moving to the rear serial numbers 6225577 - up

11300

11300

P/N 11300 Complete set #43-96084A4 $450.00
Includes pinion, reverse and forward gears compatible with all sterndrive models years 1972 to 1983 serial numbers 3469428 - 6225576

11020 Reverse

11020 Reverse

P/N 11020 Reverse gear OEM 43-92320T $180.00
Works with all MC-1/R models years 1972 to 1983 serial numbers 3469428 - 6225576

11060 clutch dog

11060 clutch dog

P/N 11060 Clutch dog #52-853594T $129.00
This is the standard clutch dog that can be installed in all MC-1 / R / MR / Alpha One and Generation 2 models, all ratios (except 2.40 and Bravo or TR/TRS models) 1972 and up serial numbers 3469428 - up

11312

11312

P/N 11312 Complete gear set OEM 43-878087A4 $599.15
This kit includes the forward/reverse/pinion gears with bearings, shims and pinion nut. Compatible with all MR / Alpha 1 / Gen 2 models from 1984 and up serial numbers 6225577 and up

25115 MC 1 and R seals bearings shims water pump gasket kit

25115 MC 1 and R seals bearings shims water pump gasket kit

P/N 25115 Complete lower unit Mercruiser rebuild kit
OEM 43-803079T1 $566.00
This kit includes the forward, pinion, reverse gear with clutch dog. All so included in kit are bearings, seals, shims and pinion nut. Compatible with all MC-1/R models for years 1972 - 1983 Serial numbers 3469428 - 6225576

11013

11013

P/N 11013 Reverse may require thrust spacer P/N 11012 please see our application chart.