OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives
- OMC 800 seal kits upper / lower unit
OMC 400 800 stringer seals, seal kits and gaskets for boating enthusiasts performing their own repairs
Updated May 12 2026
- GLM Marine products seal kits for 100 to 245 hp. Years 1973 to 1977 OEM number 981801 and more.
- GLM number 87653 seal kit for years 1978 to 1986 OEM number 982948
- OMC sterndrive upper and lower unit gearcase seal kits
OMC stringer 400-800-upper gearcase years 1969 to 1985
OMC stringer electric shift lower unit years 1967 to 1977
OMC 400-800-lower unit years 1978 to 1985
87630 Seal kit for 800 series lower unit parts years 1978 to 1985
$79.99 us
$109.99
87640
Seal kit for 400 series
4 cylinder lower unit parts
Years 1978 to 1985
OEM number 982947
$80.00
$110.00
OMC stringer 400-800 intermediate housing seal kit for years 1969 to 1985
Credit card payment for shipping in USA
Credit card payment for shipping in Canada
33950 Gasket
# 33950 (2 units) $9.89 us
# 33950 (2 units) $12.89 cdn
87670 Tilt housing seal kit 1981-1985
# 87670
$43.99 us
$43.99 us
# 87670
$59.99 cdn
Customers who order above seal kit all so required the following GLM Marine products.
OMC sterndrive seal compound 68015 Loctite can close .020 to .030 gap for installing seals.
