OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives
OMC ball gears 1967-1985
Aftermarket or OEM used parts *400-800 series sterndrives
Press on ball gears, drive shafts, gear sets and housing
Updated May 12 2026
- Used and new OEM press on ball gears and shafts
- Ball gear o rings, seals and bearings
- Used ball gear drive shafts for engine
- Exploded drawing and customer support number 416 752 – 7278
Used OMC parts *Ball gears *Shafts *Housing *Gears
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Used press on ball gear upper gearcase
P/N 314579
Press on style ball gear for upper gear case.
#314579 $399.95 US
#314579 $518.89 CDN
22327 screw
#22327 $4.95 US
#22327 $4.89 CDN
82350
Johnson or Mercury gasket compound needs to be used on both sides of the o ring on used retainers
#82350 $9.95 US
#82350 $4.89 CDN
86010 oil seal
#86010 $19.95 US
#86010 $35.89 CDN
86090 oil seal
#86090 $12.95 US
#86090 $20.89 CDN
23310 Shim kit
#23310 Plastic shim set $14.95
#23310 Plastic shim set $22.89
23330 Shim kit
#23330 Metal shim set for upper unit $13.95
#23330 Metal shim set $31.89
27960 Bearing retainer
#27960 $88.95 US
#27960 $138.89 CDN
21547 400-800 Stringer Outdrive Bearing
#21547 $60.95 US
#21547 $94.89 CDN
21544 Bearing
#21544 $58.95 US
#21544 $91.89 CDN
68015 Loctite
68015 Loctite .020 gap for installing seals. Used on tapper section of ball gears
#68015 $20.00 US
#68015 $22.89 CDN
680 loctite tapper area
680 Loctite .020 gap for installing oil seals. Use on tapper section of ball gears
#680SMALL $8.95 US
#680SMALL $10.89 CDN
508235 OMC Johnson sealing compound
For use on all o-rings and gaskets
#508235 Gasket compound $24.95 US
#508235 Gasket compound $31.89 CDN