OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives
OMC Cobra lower unit sterndrive
Remanufactured OMC Cobra lower units gearcases
and repair prices. Note see our new S.E.I. sterndrives
Updated April 27 2026
- Replaces OMC #987800
- 90 day warranty with full technical phone support
- Housing comes sandblasted, primed and finished with original color paint (OMC Cobra charcoal metallic)
- Assembled with all new parts – including OEM gear set #987670
- Updated shift detent installed
- Comes with outdrive installation gasket kit, gasket sealing compound and lower unit oil pump
- Compatible with 3.0L Chevy (1990 – 1993), 4.3L 262, 5.0L 305, 5.7L 350 Chevy, 5.0L 302, 5.8L 351 Ford (1986 – 1993)
- See repair prices below
Remanufactured and rebuilt prices below
OMC Cobra lower unit sterndrive for sale
$1595.00 US
*Includes all new parts
*Includes all new parts
$1993.00 CDN
*Includes all new parts
New gears, clutch dog, prop shaft, drive shaft, bearings and seals installed in all of our remanufactured lower units
Repair Prices Below
(Includes all labor and seals)
*Note – Additional parts may be required on top of basic repair.
Please see parts breakdown page for additional part pricing.
Basic Repair:
$345.00 USD
$431.00 CDN
Customers who ordered OMC Cobra lower unit also ordered the following items
Johnson gasket compound 508235
$24.95 US
$32.95 CDN
87654 Upper gearcase seal kit 4 cylinder-V6-V8 1986-1993
P/N 87654O
OMC Cobra Seal Kit
$41.95 US
P/N 87654
$54.95 CDN
OMC outdrive lower unit pump
# 401 $9.95 us
# 401
$12.95 cdn
