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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

Mercruiser upper housing

P/N11210 Heavy duty gear set 20/22 OEM 43-18411A2 $349.15

Includes P/N 21560 Driven roller bearing OEM 31-32573A1
Compatible with all V8 outdrives (1971 - 1997) 1.50 or 1.47 ratio
Serial numbers 3106717 - 0K999999

11214
11214

Mercruiser upper housing

P/N 11214 1.47 20/22 ratio drive shaft housing gear set OEM 43-853641A2 $349.15

Includes P/N 21560 Bearing OEM 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 OEM 43-55778A3 $259.15

Compatible with all 4 cylinder Mercruiser sterndrive models (1970 and up)

Serial numbers 2791957 - 0K999999

11244
11244

P/N 11244 1.94 & 2.4 ratio 20/24 OEM 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 OEM 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 OEM 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 OEM 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 OEM 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 OEM 43-803116T1 $459.15

(1971 - 1990)

Serial numbers 3106717 - 0D4690000

P/N 11225 1.65 & 1.62 ratio gear set 24/24 OEM 43-803112T1 $499.15

(1970 - 1990)

Serial numbers 2763442 - 0D4690000

P/N 11235 1.84 & 1.81 ratio gear set 17/19 OEM 43-8033114T1 $459.15

(1976 - 1990)

Serial numbers 4208730 - 0D4690000

P/N 11245 1.98 & 1.94 ratio gear set 20/24 OEM 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 OEM 43-803120T1 $499.15

11100 Compatible with all 4 cylinder
11100 Compatible with all 4 cylinder

Mercruiser 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 OEM N/A $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 OEM 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 OEM 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 gear OEM 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 - 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.

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