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Mercruiser upper gear set application chart

Cross reference chart for gear ratio, model year and serial numbers for Mercruiser outdrive upper gears

11210 Mercruiser

11210 Mercruiser

upper housing

P/N 11210 Heavy duty upper gear set
20/22 #43-18411A2 $444.95
Includes P/N 21560 Driven roller bearing #31-32573A1

Compatible with all V8 outdrives
(1971 - 1990) and Alpha One gen ii models 1991-1997. 1.50 or 1.47 ratio lower units
Serial numbers 3106717 - 0K999999

11240 1.98 ratio 4 cylinder OEM 43-55778A3

11240 1.98 ratio 4 cylinder OEM 43-55778A3

P/N 11240 1.98 or 1.94 overall 20/24 ratio gear set #43-55778A3 $288.95
Compatible with all 4 cylinder sterndrive models, 1970 and up and generation 2 models
Serial numbers 2791957 - 0K999999

Model

Gear ratio

Year

Serial number

Upper drive gear kit

Upper gear housing service kit

120 / 140
1.98

1970-1982

2791957-6225576
11240
N / A
470 / 485
1.84

1976-1982

4208730-6225575
11230
N / A
165
1.65

1970-1981

2763442 and up
11220
N / A
888
1.50

1971-1977

3106717 and up
11210/11212
N / A
225-S
1.50

1974

3856268-4200499
11210/11212
N / A
898/228
1.50

1977-1982

4782330-6225576
11210/11212
N / A
260
1.50

1978-1982

4898730-6225576
11210/11212
N / A
R/MR/Alpha One
1.98

1983-1990

6225577 and up
11240
11245
R/MR/Alpha One
1.84

1983-1990

6225577 and up
11230
11235
R/MR/Alpha One
1.65

1983-1990

6225577 and up
11220
11225
R/MR/Alpha One
1.50 HD

1983-1990

6225577 and up
11210/11212
11215
Alpha One SS
1.50

1986-1989

OA545004 and Up
11210/11212

 

Alpha One Gen ll
2.40

1991-1997

 OD469859-OK999999

11240
11246
Alpha One Gen 2
1.98/1.94

1991-1997

 OD469859-OK999999

11240
11246
Alpha One Gen ll
1.65/1.62

1991-1997

 OD469859-OK999999

11220
11226
Alpha One Gen ll
1.84/1.81

1991-1997

 OD469859-OK999999

11230
11236
Alpha One Gen ll
1.50/1.47

1991-1997

 OD469859-OK999999

11210/11212
11216
Alpha One Gen ll
2.40/1.94

1998 & up

OL000040 and up

11244
11247
Alpha One Generation 2
1.81
1998 and up

 OL000040 and up

11233
11237
Alpha One Gen 2
2.00/1.62

1998 and up

OL000040 and up

11222
11227
Alpha One Gen ll
1.47

1998 and up

OL000040 and up

11214
11217

Customers also purchased:

21950 Bellows kit 30-803097T1

21950 Bellows kit 30-803097T1

P/N 21950 Transom bellows kit (1973-1990), serial numbers 3469428 - 0D469800. 30-803097T1 $145.95

Includes:
P/N 21906 Gimbal bearing
P/N 39622 bell housing gasket
P/N 47110/47120 water hoses
P/N 89050 drive shaft bellow
P/N 89080 shift cable bellow
P/N 89100 exhaust bellow
P/N 85910 oil seal

21450 Shift cable 865436A03

21450 Shift cable 865436A03

P/N 21450 Stern drive shift cable kit. Newer style cable with larger core wire. Compatible with 1967 - present Mercruiser and Alpha 1 models. OEM 865436A03 $89.95

Installs from the AFT end of the bell housing. Models from the mid 1960's - 1982 used cables which threaded in from behind the bell housing. You can make an easy modification to the bell housing yourself by using a 1/4-18 tap from inside of the bell housing.

87510 gasket kit

87510 gasket kit

P/N 87510 Lower unit seal kit for 1967-1990 (s/n 2062141 - 0D469800) $38.95
 
Includes:
P/N 12830 Seal 25-39970
P/N 21330 Slinger 25-30271
P/N 81160 O-ring 25-30613
P/N 21010 bushing assembly 23-30617A2
P/N 85070 Oil seal 26-89238
P/N 81390 O-ring 25-90011
P/N 81180 O-ring 25-25439
P/N 31020 Gasket 25-858524
P/N 31050 Gasket 27-42631-1
P/N 31010 Gasket 27-85608-1
P/N 85040 Oil seal 26-16977
P/N 85700 Oil seal 26-12224
P/N 85581 Oil seal 26-816464
P/N 85140 Seal 26-45577-1

89100 Exhaust 18654A1

89100 Exhaust 18654A1

P/N 89100 Exhaust bellow - includes clamps and grounding clips. Replaces 18654A1 or Sierra 18-2750 $22.95

21960 Generation 2 exhaust u-joint

Complete repair kit

P/N 21960K *most popular For Alpha One gen ii models only, 1991 and up. Also includes bellows adhesive glue and hinge pin removal/installation$204.99

11210 1.50 ratio V8

11210

P/N 11210 Outdrive upper housing gears and gear sets. Includes pinion bearing P/N 21560. For 1970-1997 models, serial numbers 3106717-0K999999. Replaces Mercury 43-18410A4 and Sierra 18-2201. $444.99