OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives
- Mercruiser Bell Housing Parts
MR and Alpha One outdrive bell housing 1970 to 1990 with drawing
Updated April 20th 2026
- Compatible with Mercruiser and Alpha One models up to 1990
- Mercruiser component diagram with OEM numbers for cross reference
- Bellows and service kits
- Bushing kits and installation gaskets
- Click here for Alpha 1 Gen 2 (1991 and up) bell housing components
Mercruiser Bell Housing
Mercruiser bell housing layout
Photo
Description / OEM #
Price
(USD)
Price (Canadian)
39622 Bell housing gasket
27 – 94996 T2
$12.95
$ 9.89
87561 Shift shaft bushing kit
$43.89
$56.89
82200 O-ring
P/N 82200 O rings (5)
25 – 33504
$9.89
$12.89
21666
P/N 21666
12 – 35935
$4.00
$4.89
89440 Grounding clip
Item 9
P/N 89440 Grounding clip (5 units), needed to prevent clamps from rusting
54 – 86049
21422
Item 18
P/N 21422 Washer
12 – 32666
21750 Screw
Item 20
P/N 21750
Screw
10 – 45590
$4.00
$4.89
30040
Item 21
P/N 30040 Washer
12 – 39116
$4.00
$4.89
21950 Bellows kit
Item 22
P/N 21950
Transom parts service kit for Mercruiser outdrives
with exhaust bellow years 1973 to 1990.
serial numbers
3469428 – 0D 469858
30 – 803097 T1
$169.89
$ 255.89
21951
Item 23
P/N 21951 Bellows kit includes exhaust tube, fits same years as above
30 – 803098 T1
$231.89
$301.89
21450 Mercruiser Outdrive Part 865436A03
21450 shift cable kit parts that are included:
21080 Mercruiser slide
21090 Set screw
21140 Shift cable arm
21430 Guide
21433 Set screw
21462 Shift wire wrapping
21463 Insert
21464 Wire
21432 Anchor
21710 Cable
89080 Bellow
21750 Set Screw
21790 Bellow clip
21791 Hose clamp
39622 Gasket kit
$89.95
$ 116.89
21080 Shift slide
21080 Shift cable slide not included with the shift cable assemblies and kits.
Customers also purchased:
Price
(USD)
Price (Canadian)
12110 Water pump kit
lower unit water pump kit
1970 – 1983, serial numbers 2763442 – 6854392
Parts included:
12410 46 – 96148 T1 Housing
12510 32435 – 1 Wear Plate
12820 23 – 29804T Guide Tube
21330 25 – 30271 Slinger
31010 27 – 85608 – 1 Gasket
31020 27 – 858524 Gasket
31040 27 – 856704 Gasket
31170 (2) 12 – 19183 – 3 Gasket
81160 25 – 30613 O-ring
85140 26 – 45577 – 1 Seal
89840 47 – 89984 T4 Impeller
$51.89
$66.89
87500 Mercruiser upper housing gaskets
$29.89
$ 30.89
87501
P/N 87501
Alpha 1 Generation 2 upper gear housing seal / gasket kit
(1991 and up,
S/N 0A54004 – up)
26 – 88397 A1
$32.89
$ 43.89
58232 GLM exhaust manifold kit 1983-2001
P/N 58232 Complete Mercruiser GM V8 manifold set with 4 inch riser.
Included
P/N 51230 Cast iron manifold assembly
860246 Q11 x 2
P/N 51140 07988 A2 Elbow – riser (4 inch) x 2
P/N 31100 Gasket 27 – 33395 x 2
P/N 30240 Gasket 27 – 863724 x 2
P/N 13991 90 degree hose fitting 22 – 806926 x 2
P/N 13992 Drain plug 22 – 806608 A02 x 2
P/N 80140 O-ring for plug 25 – 45253 x 2
P/N 22391 Stud 16 – 49545 x 8
P/N 21248 Locknut 11 – 46335 x 8
$972.89 US
$ 1,289.89 CDN
51110 Elbow cast iron 3 inch
P/N 92-86166Q1 Quicksilver bellows adhesive. Required for bellows installation.
$22.99 US
$29.99 CDN