OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives
- Upper gearcase OMC parts drawing *400-800 Stringer
GLM Marine parts drawing for OMC upper gearcase repair
Updated April 14th 2026
- Comprehensive photo listing just below this drawing
Upper gearcase stringer drawing
OMC parts drawing 800 series
Part number and Description
Credit card payment for shipping in USA
Credit card payment for shipping in Canada
OMC upper
$1699.99
$2299.99
27000 omc stern drive case
$729.99 us
$999.99
87650 Upper gearcase 1973-1986 seal kit
$79.99 us
$109.99
87651 Upper gearcase seal kit
2C
87651
Upper gearcase 1968-1972 seal kit and gasket set
O-ring seals gaskets for # 2, 3, 4, 5, 6, 10, 11, 15, 16, 18, 20, 24 and 29 included in kit
#87651
$49.95 us
#87651
$ 89.89
22510 Gear Set 350 Chevy
$613.99 us
$822.89
22530 Stringer 800 V6
#22530
21/20 gears
$535.99
us
#22530
21/20
gears
$583.89
22512 5.0-Ford-GM
21/17 gear set.
Click on picture to see all gear ratios and hp. ratings.
Pinion 909652
Drive gear 989186
#22512
21-17
gear set
$550.99 us
#22512
21-17
gear set
$ 736.89
$572.99 us
$ 766.89
OMC Stringer 4 Cylinder 120-140 hp
Call for 1967 – 1977
4 cylinder gear sets
Pinion 16 tooth
Drive gear 20 tooth
4 Cylinder 120-140
Call for 1973 – 1977
Pinion 20 tooth
Drive gear 19 teeth
22590 OMC 21-16 gears bearing retainer assembled
21-16 ratio
Rebuild assembly parts
Click on picture to see parts and all gear ratios
$1495.95us
$ 1,532.89
22310
#21546
$23.95 us
#21546
$37.89
22412 upper drive shaft low profile
$282.99 us
$389.99
22423 drive shaft high profile 4 cylinder
$299.95 us
$399.89
12190 Water pump
#12190
$92.99
us
#12190
$129.99
28450 28440 two covers
37
#28440
#28450
$39.95 us
#28440
#28450
$ 36.89
86652 Seal
$10.00 us
$12.89
27950 Housing
$158.99 us
$ 212.89
23346 shim
54
23346
