OMC Parts Drawing *Cobra *Mercruiser *Alpha SEI Outdrives

OMC Cobra lower unit S.E.I. sterndrive

Remanufactured and new S.E.I. OMC Cobra lower units gearcases and repair prices

Last updated on 11/18/2023

  • 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
  •  Please see our parts breakdown page for more pricing information
  • Sending your unit to us for repair

Remanufactured and rebuilt prices below

OMC Cobra sterndrive

Cobra sterndrive
Cobra sterndrive

$1595.00 US

*Includes all new parts

$1993.89 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

Customers who ordered OMC Cobra lower unit also ordered the following items

Water Pump - OMC Cobra Impeller

Johnson gasket compound 508235

$24.95 US

$32.89 CDN

OMC Cobra Water Pump Service Kit, Water Pump OMC Cobra Impeller

12092 Cobra water pump kit

$50.95 USD

$ 54.89 CDN

12962 Transom bellows

P/N 21962
Transom bellows kit

$149.95 US

P/N 21962 $201.89 CDN

90095 Bearing carrier puller tool

90095 Bearing Carrier Puller

# 90095 $90.95 us

# 90095 $ 143.89cdn

87654 OMC Cobra upper gearcase seal kit

87654 Upper gearcase seal kit 4 cylinder-V6-V8 1986-1993

P/N 87654O
OMC Cobra Seal Kit

$41.95 US

P/N 87654 $ 70.89 CDN

Cobra sterndrive

90295 Removal and installation tool

# 90295 $86.95 us

# 90295 $ 136.89 us

Oil fil pump

OMC outdrive lower unit pump

# 401 $9.95 us

# 401 $12.89 cdn

Impeller

89950 OMC Cobra impeller

P/N 89950
Water pump impeller

$14.95 US

P/N 89950

$ 25.89 CDN