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OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives

Mercury outboard gear set

Outboard replacement V4 and V6 gear sets

Updated April 29 2026
  • Mercury gear / Mariner / Force Outboard forward, pinion and reverse
  • Compatible with 3 cylinder, V4 and V6 models
  • GLM complete sets replace OEM, and include a 2 year warranty
  • Clutch dog, 3 jaw and 6 jaw

Mariner / Mercury outboard gear set

All sets come with the forward gear bearing, all shims and pinion nut.
Pinion and forward included in all sets, along with reverse where noted.
Price
(US dollar)
Price
(Canadian dollar)

11442 Mercury V4 pinion

11442
Gear set with forward bearing for L4 4 cylinder, 40 – 50 hp (1980 – up). See below for compatible models. Replaces 943 – 803497 T1
2.0:1 ratio
13/26 teeth
For 6 jaw clutch

40 hp. 1989 – up,
S/N 0C 159200 – up
45 hp. 1986
S/N 5531630 – up
45 hp. 1986 Canadian
S/N 7143688 – up
50 hp. 1980 – 1985
S/N 5531630 – up
50 hp. 1980 – 1985, Canadian S/N 7143688 – up
Includes reverse
$432.00 US

Includes reverse
$ 669.89 Cdn

43-803497T1

11452

Gear set with forward bearing for L4 4 cylinder, 40 – 50 hp ( 1980 – up ).
See below for compatible models.
Replaces 943 – 803497 T1
2.0:1 ratio
13/26 teeth
For 6 jaw clutch

40 hp. 1989 – up,
S/N 0C 159200 – up
45 hp. 1986, S/N 5531630 – up
45 hp. 1986
Canadian S/N 7143688 – up
50 hp. 1980 – 1985, S/N 5531630 – up
50 hp. 1980 – 1985, Canadian S/N 7143688 – up

Pinion / forward
$322.00 US
$498.89Cdn

43 - 803498 T1

11454.

Kit includes pinion nut and shims for 3 cylinder, 40 – 50 hp (1991 – 2000).

See below for compatible models. Replaces 43 – 803498 T1
1.83:1 ratio
12/22 teeth
For 6 jaw clutch

40 hp. 1997 – 1988
S/N 0G 531301 up
50 hp. 1998,
S/N OG 590000 up

$220.00 US

 

$ 341.89Cdn

43-803499T1

43-803499T1

11552 Gear 50-60 hp

11552 Gear 50-60 hp

11552 – 11562

Includes forward bearing for 3 cylinder, 50 – 60 hp (1991 – 1996). See below for compatible models. Replaces 43 – 803498 T1
1.64:1 ratio
14/23 teeth

50 hp. 1991 – 1995 S/N 0D 000750 – 0G 589999
55 hp. 1996,
S/N OD 000750 – up 60 hp. standard, non – bigfoot 1991 –  1995 S/N 0D 000750 up

With reverse
$505.00 US

$343.00 US

$ 545.89 Cdn

$ 371.89 Cdn

11550 Complete set

43-803500T1

43-803500T1

11550-11560

3 cylinder 60 – 90 hp (1987 – 1995), 4 cylinder 100 – 125 hp (1988 – 1998). See below for compatible models. Replaces 43 – 803500 T1
2.31:1 ratio
13/30 teeth
For 3 jaw rev. clutch

60 hp. 1991 – 1995 S/N 0D 000750 – 0G 589999
70 hp. 1987
S/N 0A 996142 – 0C 221999
75 hp. 1990 – 1993
S/N 0A 996142 up
80 hp. 1987
S/N 0A 996142 – 0C 221999
90 hp. 1987
S/N 0A 996142 up


100 hp. high altitude
1988 – 1993 S/N 0B 209468 up
115 hp. high altitude years 1989 – 1996
S/N 0C 1000000 up
125 hp. high altitude 1994 – 1998 S/N 0D 283222 up

Rev. included
$598.00 US

$495.00 US

$ 645.89 Cdn

$ 536.89 Cdn

11555 Lower unit kit

11555 Lower unit kit

11555

Includes forward bearing for 3 cylinder 60 – 90 hp (1987 – 1995), 4 cylinder 100 – 125 hp (1988 – 1998). See below for compatible models. Replaces 43 – 803500 T1
2.31:1 ratio
13/30 teeth
For 6 jaw rev. clutch

60 hp. 1991 – 1995 S/N 0D 000750 – 0G 589999
70 hp. 1987, S/N 0A 996142 – 0C 221999
75 hp. 1990 – 1993 S/N 0A 996142 up
80 hp. 1987 S/N 0A 996142 – 0C 221999
90 hp. 1987 S/N 0A 996142 up
100 hp. high altitude 1988 – 1993 S/N 0B 209468 up
115 hp. high altitude 1989 – 1996 S/N 0C 1000000 up
125 hp. high altitude 1994 – 1998 S/N 0D 283222 up

$484.00 US

Reverse included
$ 536.89 Cdn

43-803501T1

11565
Includes forward bearing for 3 cylinder 60 – 90 hp (1987 – 1995), 4 cylinder 100 – 125 hp (1988 – 1998). See below for compatible models. Replaces 43 – 803500 T1

2.31:1 ratio
13/30 teeth
For 6 jaw reverse clutch

60 hp. 1991 – 1995 S/N 0D 000750 – 0G 589999
70 hp. 1987, S/N 0A 996142 – 0C 221999
75 hp. 1990 – 1993 S/N 0A 996142 up
80 hp. 1987 S/N 0A 996142 – 0C 221999
90 hp. 1987 S/N 0A 996142 up
100 hp. high altitude 1988 – 1993 S/N 0B 209468 up
115 hp. high altitude 1989 – 1996 S/N 0C 1000000 up
125 hp. high altitude 1994 – 1998 S/N 0D 283222 up

$445.00 US

$ 480.89 Cdn

11557

11557

Compatible with 4 cylinder 100 – 125 hp (1987 – 1995), 4 cylinder 100 – 125 hp (1988 – 1998). See below for compatible models. Replaces 43 – 881260 A5
2.07:1 ratio
14/29 teeth
For 6 jaw rev. clutch

100 hp. 1988 – 1993 S/N OB 209468 up
115 hp. 1989 – 1996 S/N OC 1000000 up
125 hp. 1994 – 1998 S/N OD 283222 up

Includes reverse
$433.00 US

$ 465.89 Cdn

43 - 881260 A5

11567

Compatible with 4 cylinder 100 – 125 hp (1987 – 1995), 4 cylinder 100 – 125 hp (1988 – 1998). See below for compatible models. Replaces 43 – 881260 A5
2.07:1 ratio
14/29 teeth
For 6 jaw rev. clutch

100 hp. 1988 – 1993 S/N 0B 209468 up
115 hp. 1989 -1996 S/N 0C 1000000 up
125 hp. 1994 – 1998 S/N 0D 283222 up

$228.00 US

$ 282.89 Cdn