Oil & Water Seals

Sierra 18-2026 Oil Seal, Replaces OMC 321453, for Evinrude/OMC Outboard Prop and Driveshaft

Sierra Oil Seal 18-2014, Replaces Mercury Marine 26-89238, Fits R/MR and Alpha I Stern Drives

Sierra Oil Seal 18-2013, Replaces Mercury Marine 26-16977, MerCruiser Alpha I SS and Stern Drive I

Sierra Oil Seal 18-2005, Replaces 313284, for Evinrude Outboard Prop and Driveshaft

Sierra Oil Seal 18-2009 for MerCruiser R/MR/Alpha One and Alpha One SS Stern Drives

Sierra Oil Seal 18-2002, Replaces Honda 91252-ZW1-003, Mercury Marine 26-76868, OMC 320862

Sierra 18-2001 Oil Seal, Replaces OEM 330137

Sierra Water Seal Damper 18-1834 for Yamaha F9.9, FT9.9, T9.9 Outboard Motors

Sierra Rear Main Seal 18-0612 - Replaces Mercruiser 809910, 14259 - GM Small Block V8

Sierra 18-0614 Rear Main Seal, Replaces Mercruiser 845668T, for GM Big Block V8 (Right Handed Dipstick)

Sierra Oil Seal 18-0595, Replaces Mercury Marine 26-66303

Sierra 18-0583 Marine Oil Seal, Replaces 26-43035, 1.063 Inch Shaft

Sierra Oil Seal 18-0579, Replaces Mercury 26-41131, White

Sierra 18-0578 One-Piece Rear Main Seal / Timing Cover Seal, Replaces 26-67388

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

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

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

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

Sierra Oil Seal 18-2059, Replaces OMC 321466, for Evinrude Outboard Prop and Driveshaft