OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives
Mercruiser *Alpha 1 *Gen 2 shift cables
*R*MR*Alpha one *Generation 2 and Bravo shift cable
Updated May 26 2026
- GLM Marine P/N 21450 Shift cable kit replaces the Mercury OEM 865436 A03 and Sierra 18-2603
- For Mercruiser, Alpha One and Gen ii models, all years
- New larger core wire, install into aft end of bell housing
- Photos of shift cable assembly and the ends of shift cables
- Click here for all other Mercruiser R MR Alpha one or gen ii out drive parts
Mercruiser *Alpha 1 *Generation 2 shift cables
21450 Mercruiser outdrive part
Parts:
21080 Slide
21090 Set Screw
21140 Shift Arm
21430 Guide
21432 Anchor
21433 Set Screw
21462 Wrapping
21463 Insert
21464 Wire
21710 Cable
21750 Set Screw
21790 Clip
21791 Clamp
39622 Gasket Kit
89080 Bellow
$118.99 USD
$129.99 Canadian
Gimbal End
Customers Also Purchased:
21421 Intermediate shift shaft
P/N 21421
OEM 62104-1 for use with MerCruiser -1, R, MR and Alpha one lower units
$59.89
$77.89
21420 Upper shift shaft
$ 88.89
$ 115.89
90140 shift shaft bushing tool
P/N 90140
tool OEM 91 – 31107T
Use with MerCruiser -1, R, MR and Alpha one lower units
$22.95
$ 31.89
90110 shift cable tool
P/N 90110
GLM Marine after market Mercruiser stern drive gimbal housing shift cable tool used to remove and install shift cable on Mercruiser Mr Alpha out drive units.
OEM: 91 – 12037
$33.95
$ 47.89
shaft bushing and seal kit
$31.95
$ 57.89
87562 Bushing and oil seal kit
$12.95
$ 21.89
21960 Alpha One transom
21960
Alpha 1 Generation 2 bellows kit (1991 and up, serial numbers 0D 469859 and up)
30 – 803099 T1
$177.95
$ 301.89
92-861166Q Adhesive glue
P/N 92 – 86166 Q1 Bellows glue
Replaces Sierra 18-9031.
$19.00
$23.89
89080 shift cable bellow
P/N 89080 Shift cable bellow
$12.95
$ 19.89
89100
P/N 89100 Exhaust bellow for use with all models from 1963 to present, serial numbers 1534570 and up. (Not for use with Bravo or TRS models)
18654 A1
$22.95
$ 31.89
