Gaskets, Seals & Bearings

Sierra 18-0577 Carrier Oil Seal Assembly, Replaces Mercruiser 66081A2, for Alpha One and Gen II Stern Drives

Sierra 18-0564 Oil Seal, White, Replaces Mercury Marine 26-888483

Sierra 18-0559 Outboard Prop Shaft Oil Seal, Replaces OMC 332585

Sierra Seal 18-0558, 44mm ID x 7mm Width Marine Shaft Seal

Sierra 18-0550 Plug Off Cap, Replaces OMC 909830, 1-1/4 Inch

Sierra 18-0539 Rubber Seal Gasket - Replaces Mercury 37721

Sierra 18-0515 Oil Seal, Replaces Mercury 26-30530, for Outboard Powerhead Crankshaft

Sierra 18-0488 Intake Gasket, Replaces Mercury Marine 27-807473A1

Sierra Oil Strainer Seal 18-0486 for Yamaha Outboard Gearcase & Drive

Sierra 18-0411 Oil Pan Gasket Set, Replaces 27-90458A1 & 27-90458, for Mercruiser GM 350 CID (5.7L) Starboard Dipstick Engines

Sierra 18-0403 Intake Gasket Kit, Replaces Mercury Marine 27-52571, Fits MCM 370/400/325/454/502 Mag & MIE 82L 1978-1997

Sierra Valve Stem Seals (8) 18-0347, Replaces Mercruiser 27-52145, for 4 Cyl. 3.7L Mercruiser 470

Sierra Mounting Plate to Driveshaft Housing Gasket 18-0334 for Mercury Outboards

Sierra Powerhead Base Gasket 18-0333, Replaces Mercury 27-39401, Fits Mercury/Mariner Outboard Motors

Sierra 18-0320 Reed Block Gasket - Cross Reference Mercury 27-13937

Sierra Cover Gasket 18-0232 for Yamaha Outboard Engines, Replaces 27-81031M

Sierra 18-0203-9 Bell Housing Washer, Replaces Mercruiser 12-29395, Fits Sterndrives 1963-1998, Pack of 5

Sierra Washer 18-0192, Replaces Yamaha 92901-10600-00, 92902-10600-00, 92903-10600-00

Sierra Rubber Ring 18-0184, Replaces 804190, Clamp Ring Seal for Volvo Penta SP-A/DP-A/DP-B Drives and AQ Series Engines

Sierra Oil Seal 18-0172, Replaces Mercruiser 26-97530, 0.845 Inch Shaft

Sierra Bypass Gasket 18-0141-9, 2-Pack, Force Outboard Powerhead Gasket

Sierra Air Box Gasket 18-0140 for Evinrude Outboard Engines

Sierra Water Jacket Gasket 18-0133, Replaces 27-73665 and 27-52892, for 4 Cylinder Outboards