Gaskets, Seals & Bearings

Sierra O-Ring 18-7153-9 for Mercury Stern Drives (Alpha I, Alpha I SS, Bravo I/II), Pack of 5

Sierra 18-7116 O-Ring - 0.360 in. ID x 0.100 in. Width, OMC Cobra, Mercury, Mercruiser Stern Drive

Sierra O-Ring 18-7157 for MerCruiser Stern Drive Model I (1963)

Sierra O-Ring 18-7150

Sierra O-Ring 18-7133-9 for Evinrude Outboard Gearcase and Drive, Pack of 5

Sierra 18-7121 O-Ring, 3.100 Inch ID, Replaces Mercury 25-35029, for OMC and Mercruiser Stern Drives

Sierra O-Ring 18-7130, Replaces OMC 314728, for Johnson/Evinrude and OMC Sterndrive/Cobra Stern Drive

Sierra O-Ring 18-7120, Replaces 25-F498618, Chrysler/Force Outboard Drive Systems

Sierra 18-7117 O-Ring, Replaces 25-35027, for OMC Sterndrive and Cobra Stern Drives

Sierra 18-7112 O-Ring for OMC Sterndrive/Cobra Stern Drive, Replaces Johnson/Evinrude 302493

Sierra 18-7108-9 O-Ring, Pack of 5, Replaces Johnson/Evinrude 313893, 338518

Sierra O-Ring 18-7100-9, Replaces 25-85594, Pack of 5

Sierra 18-6457 Composite Pulley, Replaces 807757T, for Late Model GM V6 & V8 Engines

Sierra Cylinder Head Gasket 18-60917, Replaces 3V1010050M, Fits F8/9.8 Outboards

Sierra Drain Plug Gasket 18-60103 for Tohatsu Outboard Gearcase & Drive

Sierra 18-4698 Drain Fill Washer, Replaces Yamaha 90430-08020-00, Pack of 50

Sierra 18-4392 Intake Manifold Gasket Set, Replaces 27-75611A2 27-75611A1, for GM 305 & 350 CID V-8 Marine Engines

Sierra 18-4389 Intake Manifold Gasket Set, Replaces 27-11977A88, for GM 262 CID 4.3L 175-205 HP Marine Engines

Sierra Powerhead Gasket Set 18-4303-1, Replaces 389556 391300 439085, Johnson/Evinrude Outboard

Sierra 18-4295-9 E-Clip - Replaces 53-29641 - Pack of 2 - Mercruiser Vazer

Sierra 18-4226 Drain Plug, Replaces Mercruiser 22-806608A1 and 22-806608A02

Sierra 18-4088 Piston Ring Set, Replaces 436353, OMC V-4/V-6 60-Degree Eagle Series 90-175 HP

Sierra Piston Ring 18-3972 for Johnson/Evinrude 5/6/8/7.5 HP Outboards, 1986-95, 1.937 Inch Standard Bore