OMC Parts / OMC Cobra Stern Drive Tech Drawings

Cobra parts 3-3/4" id lower gearcase stern drive drawing

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GLM aftermarket OMC Cobra parts with smaller 3-3/4 inch propeller hub lower gearcase stern drive drawing 1986 thru 1990

  • Exploded drawing shows internal 3-3/4 inch prop hub Cobra parts and their relationship with other smaller gearcase OMC Cobra outdrive parts.
  • Contact our service tech for help with troubleshooting your OMC outdrive or ordering Cobra parts at (416) 751-7326

Click Here for OMC Cobra Parts (lower gearcase)
W OMC Cobra lower gearcase 1985 1995.jpg
Click on Outdrive to Order OMC Cobra Parts on line

Photo
Item #
OMC parts description
T-87655-Cobra-lower-gearcase-seal-kit-4-CYL.-2.3L.jpg
# 87655 Seal kit
A

# 87655 Seal kit for 4 cylinder Cobra lower unit gearcases with smaller propeller hub of 3-3/4 inch inside diameter years 1986 thru 1989 with 3 Litre and 1987 thru 1990 with 2.3 litre OEM # 985612 $28.29

T 22880 Roller bearing.jpg
# 22880 Roller bearing
# 2

# 22880 Drive shaft roller bearing for 4 cylinder Cobra lower unit gearcases with smaller propeller hub of 3-3/4 inch inside diameter years 1986 thru 1989 with 3 Litre and 1987 thru 1990 with 2.3 litre OEM # 384195 $15.09

T-21885-screen.jpg
# 21885 Screen
# 3

# 21885 Screen
OEM# 337778 $10.09

T-22363-Screw.jpg
# 22363 Screw
# 4

# 22363 Screw
OEM# 337061 $4.09

T 21679 Washer.jpg
21679 Washer
# 5

# 21679 Washer $4.09
 

T-27720-detent.jpg
# 27720 Detent
# 6

# 27720 Detent
OEM# 915954 $55.09

T-27750-cover-seal.jpg
# 27750 Cover & seal assy.
# 7

# 27750 Cover seal assy.
OEM# 986838 $36.09

T 22375 Screw.jpg
22375 Screw
# 10

# 22375 Screw $4.09
OEM# 304027

T-86620-Water-tube-seal.jpg
# 86620 Water tube
# 12

# 86620 Seal $4.09
OEM# 911705

T-12960-Copper-water-pump-tube.jpg
# 12960 Tube
# 13

# 12960 Tube  $23.09
OEM# 911706

T-12961-guide.jpg
# 12961 Guide
# 14

# 12961 Guide $4.09
OEM# 911715

T-27760-Water-Passage-Housing-Cobra.jpg
# 27760 Water passage hsg.
# 15

# 27760   Water passage hsg.  $67.09
OEM# 915720
 

 
# 16

# 22404 Upper drive shaft $164.09
OEM# 911709

T-21180-lock-nuts.jpg
# 21180 Locknuts
# 17

# 21180 Nut (5 units) $5.09
OEM# 121731

T 22362 bolt.jpg
# 22362 bolt
# 21

# 22362 Screw $4.09
OEM# 121731

T-27770-Bearing-housing.jpg
# 27770 Bearing hsg.
# 22

# 27770 Bearing hsg. $83.09
OEM# 984462

T-23590-Shims.jpg
# 23590 Shim .003
# 24

# 23590 Shim .003 $4.09
OEM# 323362

T-23580-Shims.jpg
# 23580 Shim .004
# 24

# 23580 Shim .004 $5.09
OEM# 323361

T-23510-Shims.jpg
# 23510 Shim .005
# 24

# 23510 Shim .005 $4.09
OEM# 314745

T-21645-Trust-washer.jpg
# 21645 Thrust washer
# 25

# 21645 Thrust washer $7.09
OEM # 327656

T-16330-Trust-bearing.jpg
# 16330 Thrust bearing
# 26

# 16330 Thrust bearing $25.09
OEM# 387656

T-12962-plug.jpg
# 12962 Plug
# 27

# 12962 Plug $4.09
OEM# 911710

T-11190-Pinion-nut.jpg
# 11190 Pinion nut
# 29

# 11190 Nut $5.09
OEM# 314730

T 22630 OMC Cobra 400 gears and clutch set.jpg
22630 OMC Cobra 400 gears and clutch set
# 30

# 22630 Pinion, clutch, forward and reverse gears for 4 cylinder Cobra lower unit gearcases with smaller propeller hub of 3-3/4 inch inside diameter years 1986 thru 1989 with 3 Litre and 1987 thru 1990 with 2.3 litre $377.09

T 22631 Forward gear pinion gear.jpg
# 22631 Forward gear pinion gear
# 30B

# 22631 Pinion and forward gear for 4 cylinder Cobra lower unit gearcases with smaller propeller hub of 3-3/4 inch inside diameter years 1986 thru 1989 with 3 Litre and 1987 thru 1990 with 2.3 litre $357.09

T 22632 Reverse gear.jpg
# 22632 Reverse gear
# 31

# 22632 Reverse gear for 4 cylinder Cobra lower unit gearcases with smaller propeller hub of 3-3/4 inch inside diameter years 1986 thru 1989 with 3 Litre and 1987 thru 1990 with 2.3 litre OEM # 345992 $132.09

T-12774-Anode.jpg
# 12774 Anode
# 32

# 12774 Anode $20.09
OEM# 3853818
 

 
# 32

# 018-61020 Magnesium anode $29.09
OEM# N/A

 

T-22365-T-Bolt.jpg
# 22365 Screw
# 33

# 22365  Screw 7/16 x 3  1/2-14 $13.09
OEM# 914535
 

T 21674 Washer.jpg
21674 Washer
# 34

# 21674 Washer $4.09
OEM# 330265

T-22366-T-Screw.jpg
# 22366 Screw
# 35

# 22366 Screw $4.09
OEM# 328096

T-22367-T-Bolt.jpg
# 22367 Screw
# 36

# 22367 Screw 3/8 x 3 1/2-16 $10.09
OEM# 330263

T-12776-T-Anode.jpg
# 12776 Anode
# 37

# 12776  Anode   $9.09
OEM# 436745
 

T 22368 Bolt.jpg
22368 Bolt
# 38

# 22368 Screw $4.09
OEM# 313715

T 22369 Screw.jpg
22369 Screw
# 39

# 22369 Screw N/A
OEM# 912127

 
# 40

# 21761 Lockwasher N/A
OEM# 328701

W-21731-Mercruiser-oil-plug-drain-screw-washer.jpg
# 21731 Draining screw
# 41

# 21731  Draining screw $5.09
OEM# 318544
 

T-22371-T-bolt.jpg
# 22371 Screw
# 43

# 22371 Screw 3/8 x 1 3/4-16 $5.09
OEM# 331999
 

T-22185-Propeller-nut-kit.jpg
# 22185 Prop nut & keeper
# 44

# 22185 Prop nut and keeper $6.09
OEM# 398042

T-22142-cotter-pin.jpg
Cotter pin
# 45

# 22120 Cotter pin (10 units) $5.09
OEM # 314502

 
# 46

# 27702 Housing and bearing assy.4 cyl. $130.09
OEM # 391365

T-22870-Bearing.jpg
# 22870 Bearing 4 cyl.
# 47

# 22870 Bearing 4 cylinder $16.09
OEM # 382407

T-21138-Pin.jpg
# 21138 Pin
# 48

# 21138 Pin $4.09
OEM# 331880

 
# 49

# 21135 Pin $4.09
OEM# 328825

T-22491-detent-ball.jpg
# 22491 Detent ball
# 50

# 22491 Detent ball $4.09
OEM# 160084

T-11055-Spring-OMC-Cobra-part.jpg
# 11055 Spring
# 51

# 11055  Spring   $4.09
OEM# 915995
 

T-27730-Cradle.jpg
# 27730 Cradle
# 52

# 27730 Cradle $11.09
OEM# 982422

T-27710-shaft.jpg
# 27710 Shaft
# 53

# 27710 Shaft $56.89
OEM# 322941

 
# 54

# 27741 Lever 4 cyl. $12.09
OEM# 324037

T-21644-Thurst-washer.jpg
# 21644 Thrust washer 4 cyl.
# 55

# 21644 Thrust washer 4 cyl. $30.09
OEM # 324766

T-16310-Thrust-bearing.jpg
# 16310 Thrust bearing 4 cyl.
# 56

# 16310 Thrust bearing 4 cyl. $17.09
OEM# 385043

T 22633 Clutch dog.jpg
# 22633 Clutch dog for 3 liter 1986 thru 1989 and 1987 thru 1990 2.3 liter
# 57

# 22633 Clutch dog $86.09
 
OEM # 912607

T-21135-Cross-pin.jpg
# 21135 Cross pin
# 58

# 21135 Cross pin $4.09
OEM# 313448

T-11052-Spring.jpg
# 11052 Spring
# 59

# 11052 Spring $4.09
OEM# 324369

T-22416-OMC-propeller-shaft.jpg
# 22416 Prop shaft 4 cyl.
# 60

# 22416 Prop shaft 4 cylinder $382.09
OEM # 436888

T-16300-Thrust-bearing.jpg
#16300 Thrust bearing
# 62

# 16300  Thrust bearing   $5.09
OEM# 382408
 

T-21642-Thrust-washer.jpg
# 21642 Thrust washer
# 63

# 21642  Thrust washer  $11.09
OEM# 314731
 

T-22870-Bearing.jpg
#22870 Bearing
# 66

# 22870  Bearing   $16.09
OEM # 382407
 

T-22860-Bearing.jpg
#22860 Bearing 4 cyl.
# 67

# 22860  Bearing 4 cylinder  $11.09
OEM # 379504
 

T 85130 lower oil seal.JPG
#85130 lower oil seal
# 68A

# 85130 Oil seal 1986 - 1990 $7.09
OEM # 320862

T 86810 Oil seal.jpg
#86810 Oil seal
# 68B

# 86810 Oil seal 1991 - 1993 $10.09
OEM # 334950

T-12737-Anode.jpg
#12737 Anode
# 69

# 12737  Anode   $12.09
OEM# 431708
 

T-22320-T-screws.jpg
#22320 Screw (5 units)
# 70

# 22320  Screw (5 units) $6.09
OEM# 908158
 

T-27850-tab.jpg
#27850 Retaining tab
# 71

#27850  Retaining tab $20.09
OEM# 333957
 

T-22373-T-bolts.jpg
#22373 Screw 5/16 x 7/8-18
# 72

#22373 Screw 5/16 x 7/8-18 $4.09
OEM#341541

 
# 73

#22230 Prop thrust washer $27.09
OEM#127084
 

 
# 74

#22250  Prop spacer (1 unit) $4.09
OEM #315810
 

 
# 76

#22150 Nut $6.09
OEM #314503
 

T 26440 Rod end.jpg
26440 Rod end
# 77

#26440 Rod end $47.09
OEM #914723
 

T 22388 Screw.jpg
# 78

#22388 Screw $4.09
OEM #308825
 

 
# 80

#22471 Stud $8.09
OEM #911713
 

 
# 81

#22472 Stud $8.09
OEM# 911714