OMC 800/Cobra parts *Outdrive drawings *How to videos

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OMC seal kit 400-800 *Cobra upper-lower *How to video

GLM Marine aftermarket seal kits for Cobra 400-800 Stringer
High and low profile upper gearcase years 1968 to 1993

  • Stringer mount upper gearcase high profile seal kit P/N 87651 for years 1968 to 1972 with 100 - 245 horsepower with press on ball gears.
  • Low profile P/N 87650 for years 1972 to 1986 that uses upper gearcase ball gear with nut. Cobra years 1996 to 1993 Tech support for aftermarket outdrives (416) 751-7326.
  • Note all too often seal that are installed in older unit or units that are heavy with corrosion, the carrier area should be sandblasted and or wire brush. Once this is done the supporting area should be clean with lacquer thinner.
    Then a coating of
    609 or 680 Loctite retaining compound place on both seal and housing. Note if there is a large gap in between the two items up .030 you can still use parts you just need to apply compound and leave 24 hr and the re-coat parts just before assembly is put together.
  • Gaskets and o-ring should use Evinrude-Johnson gasket compound to seal shifter housings, stern drive or lower unit gearcases.
  • Need one seal, gasket or o-ring see OMC help page for upper or lower stern drive parts sold separately.
  • For individual seals, go here

Click on photo for exploded view drawing

87650 Upper 1973-1985

400-800 Stringer upper gearcase

87650 Upper 1973-1985
87650 Upper 1973-1985
P/N 87650 800 series Stringer upper gearcase. GLM Marine aftermarket seal kit for years 1972 to 1985. Ball gear is held on with a nut OEM 982949 $51.00

87651 high profile 100-245 hp.
87651 high profile 100-245 hp.
P/N 87651 press-on ball gear series Upper gearcase years 1968 to 1972 with press on ball gear / 981799 $49.00

 

Electric shift lower gearcase

87620 Electric shift 1971- 1977 lower
87620 Electric shift 1971- 1977 lower

P/N 87620 lower unit years 1968 to 1977.
Click here for Electric shift drawing / 981797 $42.15

Contains:
P/N 85110 Oil seal (4 units) / 310599
P/N 86050 Swivel housing lower oil seals / 313353 (2 units)
P/N 86040 Swivel bearing retainer upper seal / 310649
P/N 33010 Swivel housing gasket (10 bolt) / 313368
Propeller shaft bearing retainer large o ring
Bearing retainer 0-rings for screws / 307853 (4 units)
P/N 22310 Stringer electric shift pinion nut / 907866
P/N 86320 4 cylinder lower grommet / 310597
P/N 86330 (4-6-8 cylinder) upper water tube grommet / 908594
P/N 86340 (6 and 8 cylinder) lower grommet / 909019
P/N 31171 Drain screw nylon gaskets (2 units) / 3855081-311598

 

400 800 Lower gearcase housing

87630
87630

P/N 87630 800 stern drive lower unit V6 and V8 years 1978 to 1985 / 982946 $55.15. Please watch video for out-drive parts and installation.

contains:
33020 Shift gear housing gasket OEM 324670
33960 Gasket / 911878
22320 Housing screw / 908158 (2 units)
22222 Washer / 909748
85130 Oil seal / 320862 (2 units)
86040 Oil seal / 310649
86050 Oil seal / 313353 (2 units)
86060 Oil seal / 321467 (2 units)
34720 Swivel Gasket / 910236
21180 Locknut / 121731 (6 units)
31171 Washer / 311598 (2 units)
86620 Water tube seal / 911705 (2 units)
80100 O ring / 305739
80130 O ring / 307450
80090 O-Ring / 307853
81380 O Ring / 314728
82420 O ring / 322119
82130 O ring / 320140
81280 O-Ring / 909316 (2 units)
81090 O-Ring / 909747
80120 O ring / 202893
22300 Stainless steel bolts / 316563 (4 units)

87640 Lower unit 4 cylinder 1978-1986 small hub
87640 Lower unit 4 cylinder 1978-1986 small hub

P/N 87640 400 Series lower unit four cylinders with years 1978 to 1985 / 982947 $41.00

 

Intermediate gear housing

87652 Electric shift intermediate housing
87652 Electric shift intermediate housing

P/N 87652 Intermediate housing years 1973 to 1977 OEM 981801 $65.00

87653 Intermediate gear housing years 1978-1985
87653 Intermediate gear housing years 1978-1985

P/N 87653 Intermediate housing years 1978 to 1985 OEM 982948 $64.00

 

Tilt housing

87660 Tilt housing years 1968-1980
87660 Tilt housing years 1968-1980

P/N 87660 Tilt housing for years 1968 to 1980 $24.00

87670 GLM aftermarket omc seal kit
87670 GLM aftermarket seal kit

P/N 87670 Tilt housing years 1981 to 1985 $23.29

 

Stern drive installation

34810 1978-1986
34810 1978-1986

P/N 34810 Drive installation years 1978 to 1985 $9.00

34820 electric shift gasket set 1964-1977
34820 electric shift gasket set 1964-1977

P/N 34820 Outdrive installation gasket years 1971 to 1977 $9.00

 

Cobra outdrive lower gear case

87655 Lower unit 3.0 liter 1986-1989 2.3 years 1987-1990
87655 Lower unit 3.0 liter 1986-1989 2.3 years 1987-1990

P/N 87655 Small hub lower unit 2.3 Liter years 1987 to 1990 and 3.0 Liter years 1986 to 1990 OEM 985612 $28.29

87656 V6-V8 lower gearcase
87656 V6-V8 lower gearcase

P/N 87656 Click on photo for parts included list. Compatible with lower unit 3.0 liter years 1990, 1991, 1992 and 1993. V6 and V8 all years OEM 439967 $49.00

contains:
Gasket / 911878
Seal / 911705
Wiper / 912157
Gasket / 915719
O ring / 318717 (3 units)
O ring / 314728
O ring / 305123 (2 units)
O ring 1/4 inch (4 units)
Oil seals / 320862 (2 units) 1986-1990
Oil seals / 334950 (2 units) 1991-1993
Bolts 1/4 28 x 1 inch 4 units
Gaskets / 311598

 

Cobra SX

87750 SX lower
87750 SX lower

P/N 87750 Lower gearcase Cobra SX seal kit for years 1994 to 1998 OEM 3855275 $22.29

87740
87740

P/N 87740 OMC Cobra-SX upper gearcase years 1994 to 1998 OEM 3850594 $37.29

 

Cobra upper gear case

87654
87654

P/N 87654 Cobra upper gear-case years 1986 to 1993 OEM 987603 $39.00

contains:
81180 O-Ring
86530 Oil seal
82380 O-Ring
34771 Gasket
82430 O-Ring
81280 O-Ring
86610 Oil seal
34730 Gasket
33910 Gasket
81100 O-Ring

 

Cobra transom installation

39630 Gasket installation kit 1986-1993
39630 Gasket installation 1986-1993

P/N 39630 Outdrive installation years 1986 to 1993 work with the King Cobra (1988) model unit with shift rod in lower unit OEM 508105 $9.15

contains:
Gasket / 915850
Seal / 911823
O rings / 911851 (2 units)
Note installation requires the use of 2 coat of Johnson gasket compound. One coat 4 to 24 before install and one just before installing outdrive.

Evinrude-Johnson gasket sealing compound
Evinrude-Johnson gasket sealing compound

P/N 508235 Evinrude/Johnson gasket sealing compound $19.15

60905 Loctite
60905 Loctite

P/N 60905 Loctite 609 retaining compound. 0.02 oz or 0.5 ml. Can be used for 8 to 12 seals. $8.15

327361 Gel-2 sealant
327361 Gel-2 sealant

P/N 327361 Johnson - Gel sealant 2 (seals metal to metal surfaces). 1.69 oz. or 50 ml. $14.15

installer
installer

P/N YF6312 Bearing race / seal drive set (9 pieces) $79.15