Mercruiser gimbal housing parts drawing

R, MR, Alpha 1 and Generation 2 outdrive Gimbal housing exploded view drawing

Updated May 8 2026

Compatible with Mercruiser, Alpha One and Alpha One generation 2 models
Mercruiser component diagram with OEM numbers for cross reference
Click here for Alpha 1 Gen 2 (1991 and up) bell housing components
Transom seal kit, gimbal bearing and trim cylinder connector

Bell housing R-MR-Alpha One

Photo

Description / OEM #

Price
(USD)

Price (Canadian)

85420 Oil seal

Item 1
P/N 85420

Oil Seal

OEM 26 – 54925

85440 Oil seal

Item 2
P/N 85440

Oil Seal

26 – 32911

Item 3
P/N

21905 Gimbal bearing 21906

Item 4

P/N 21906

Gimbal Bearing

30 – 879194 A01

$107.96

$ 149.96

85910 bearing oil seal

Item 5
P/N 85910

oil seal

21790 clamp

Item 6
P/N 21790 clamp

89080 with clamps

Item 7
P/N 89080

Bellow 74639 A2

21791 Clamp

Item 8
P/N 21791 Clamp 54-31766

21970 Trim connector

Item 9
P/N 21970

Trim connector parts kit

98825 A4

32500 Gasket

Item 9A
P/N 32500

Gasket

$4.95

$4.89

05009 Lockwasher

Item 9C
P/N 05009

Lockwasher

$4.95

$4.89

22440 Screw

Item 9D
P/N 22440

Screw

$4.95

$4.89

86712 Transom seal

Item 14
P/N 86712

Transom Seal

(MC-1/R/MR/Alpha One)

65533 A1

86711 Transom seal

Item 14
P/N 86711

Transom Seal Alpha One generation 2

OEM 243713

Item 15
P/N 82460

Seal 41802

12700 Anode

Item 16
P/N 12700

Anode

5598909

$6.95

$ 11.89

30355 Gasket

Item 17
P/N 30355

Gasket

12 – 56085

12713 Bell housing anode

Item 18
P/N 12713 Anode 82163101

85656 Seal

Item 19
P/N 85656

Seal

012077

33000 Gasket

Item 20
P/N 33000

Gasket

44108 – 1

22147 Cotter pin

Item 21
P/N 22147

Cotter Pin

18 – 54929

01071 Clamp

Item 23D
P/N 01071

Clamp

47110 Mercruiser Water hose

Item 23A
P/N 47110

Water Hose 3/4″ O.D.

32 – 41725 – 33

$7.95

$ 14.89

47120 Mrecruiser Water hose

Item 23
P/N47120

Water Hose 5/8″0.D.

32 – 32461

$8.00

$ 15.89

21164 Locknut

Item 24
P/N 21164

Locknut

11 – 25599

12967 Plug

Item 25
P/N 12967

Plug 22 – 88847

16005 Alpha 1 plug kit

Item 26
P/N 16005

Plug Kit

22 – 88847 A1

12713 Aluminum Anode Kit

Item 27
P/N 12713

Aluminum Anode Kit

821631 Q1

21180 Nut

Item 28
P/N 21180

Locknut

11 – 826711 -9