OMC Internal Engine Parts

Sierra 18-3878 Head Gasket for OMC, Mercruiser, and Chrysler Sierra replacement engine parts are designed to meet OEM specifications. Sierra 18-3878 Head Gasket fits MCM 3.7L engines (1976-1989). For 460 Ford Interchangeable with: Chrysler...

Sierra 18-2671 OMC Cobra Lower Unit Seal Kit Sierra high-quality engine parts are designed to meet OEM specifications. For Use On All 4 Cyl Cobras(1986-89). Kit Includes: (2) 18-0166 Grommet (1) 18-0190 Wiper Gasket (1) 18-0880 Shift Cover...

Sierra 18-0518 Valve Stem Seal for Mercruiser, OMC, Volvo For most inline 4 and 6 cylinder GM (Early) and 305-350 CID GM Engines. O.D.: 0.394" Shaft Size: 0.282" Width: 0.083" Interchangeable with: Johnson/Evinrude...

Sierra 18-1308 Standard Rod Bearing for Mercruiser Stern Drives Sierra high-quality engine parts are designed to meet OEM specifications. Standard size Interchangeable with: Mercruiser Stern...

Valve Cover Gasket for 5.0 & 5.7L Mercruiser, Volvo, OMC For V-8 Engines (305/350)CID 5.0,5.7L Replaces: Chris Craft - 16.11-01236 Mercury - 27-11999 OMC - 0912965 Mallory - 9-61300 Crusader - 91351 Pro Marine - 17930 Redline - RL2845  

Sierra 18-1238 Intake Manifold Gasket Set (Pair of 2) for 4.3L Mercruiser, OMC, Volvo Engines Sierra replacement engine parts are designed to meet OEM specifications. Fits MCM 4.3L/LX Gen II (1993-1996) Interchangeable...

Sierra 18-2673 OMC Cobra Upper Unit Seal Kit Sierra replacement engine parts are designed to meet OEM specifications. For Use On All Cobras (1986-89). Interchangeable with: GLM 87654 Johnson/Evinrude Outboard 984459 986364 987603 OMC...

Sierra 18-0476-1 Blocked Riser Gasket Ford Small Block V-8 For Ford Small Block V8 302-351 cu.in. Volvo Penta, Indmar & Marine Power Sterndrives Engines. Used with Risers: 18-1939 18-1999 18-1907 Interchangeable...

Sierra 18-0164-9 Thermostat Housing Gasket (Pkg Of 2) Sierra replacement thermostat housing gasket. Sold in Package of 2 each For Use on: OMC Sterndrive/Cobra 4 & 6 Cylinder Engines Yamaha Sterndrive I/O Interchangeable...

Sierra 18-2815 Push Rod Cover Gasket for GM 3.0L Sierra high-quality engine parts are backed by an unmatched Sierra manufacturer's warranty. For use with Mercruiser Stern Drives, OMC Stern Drives, and Volvo Penta engines. Fits MCM 120/140 (4 cyl.)...

Mercury - Mercruiser 27-805760 Distributor Cap Gasket For Thunderbolt IV and V ignition Replaces: GLM 32060 Mallory 9-61050

Upper Gearcase Dipstick Gasket by Sierra (Priced Per Pkg of 2) Replaces: OMC - 315189  

Sierra 18-2909-9 Exhaust Manifold Gasket (Priced Per Pkg of 2) This exhaust manifold gasket set is an aftermarket product that meets or exceeds OEM requirements. Supersedes 18-2909 Use with: Exhaust Manifold 18-1952-1 Exhaust Manifold...

Sierra 18-4024 Intake Valve Stem Seal for 4.3L/5.0L/5.7L Sierra high-quality engine parts are designed to meet OEM specifications. For Mercruiser, OMC, and Volvo Penta applications. For: Chevy 4.3L/5.0L/5.7L Interchangeable...

Sierra 18-3887 Head Gasket for 7.4L Crusader, Mercruiser, OMC, and Volvo Engines Sierra high-quality engine parts are designed to meet OEM specifications.  For 7.4L 454 CID Gen V and VI (1992 & up) Interchangeable...

Sierra 18-1211 Rear Main Seal Replaces MerCruiser 26-814622 Sierra two piece rear main seal for Most GM Based Marine Engines. Application Info: Fits 120/2.5L (s/n 2786857 & up), 140/3.0L & LX (s/n 6229718 & up)Fits 150/160/165/200 (I/L-6)...

Drain Screws Gaskets for Mercruiser, Mercury, OMC (50 pk) Replaces: GLM - 21170 Mallory - 9-60101 Merc - 12-19183-3 Redline - RL2945  

Mercury 1395-83181 Valve Seat Kit Genuine Mercury OEM replacement engine part Special Order Item Interchangeable: Sierra 18-7061

Exhaust Manifold Gasket Set, Mercury - Mercruiser 27-33395A-2 For GM 305, 327, 350 cid engines with end outlet exhaust manifolds. Replaces: Aqua...

Sierra 18-0887 Timing Cover Gasket Sierra replacement timing cover gasket for 4 & 6 cylinder engines. Fits MCM 120/2.5L, 140/3.0L/LX & 160/165 (6 cylinder) (1963 & up) Interchangeable...