Gaskets, Seals & Bearings

Sierra Piston Ring Set 18-3937 - Replaces GM 14089025, Mercury Marine 39-17464 - 8.9L 575 Marine Engines

Sierra Piston Rings 18-3921 for Mercury Marine V-6 135-175 HP, 3.125 Inch Standard Bore, Replaces 39-93481A12

Sierra Piston Ring Set 18-3911,.020 Oversize 3.020 Inch Bore, Fits 25-35 HP 2-Cyl and 60-75 HP 3-Cyl Outboards, Replaces 396378

Sierra 18-3904 Standard Piston Rings, OMC 394930 Cross Reference, V-4/V-6 60 Degree Eagle Series

Sierra 18-3891 Head Gasket for Yamaha Outboard, Replaces 61A-11181-00-A0

Sierra Head Gasket 18-3877 for GM 262 (4.3L) CID Marine Engines, Replaces 3854299

Sierra 18-3887 Head Gasket - Replaces 27-75611 for GM 305 (5.0L)/350 (5.7L) CID Engines

Sierra Head Gasket 18-3878, Replaces 27-52364, for GM 181 (3.0L) CID Marine Engines

Sierra Head Gasket 18-3874, Replaces 30266, for GM 454 (7.4L) CID Engines

Sierra Head Gasket 18-3857, Replaces 27-824615, for Chrysler/Force 100-140 HP Outboards, Pack of 2

Sierra 18-3853 Head Gasket, Replaces Chrysler 27-F691529-1, for Chrysler/Force 40 HP & 50 HP Outboards

Sierra 18-3836 Head Gasket for Johnson/Evinrude 65 HP Commercial Outboards, 1987-95

Sierra 18-3831 Head Gasket for Yamaha 60 HP and 70 HP Outboards, Replaces 6H3-11181-01-00

Sierra Head Gasket 18-3805, Replaces Yamaha 6H1-W0001-00-00, for Yamaha Outboard Engines

Sierra Grommet 18-3329, Replaces OMC/Evinrude Johnson 302497

Sierra 18-2963 Head Gasket, Replaces Johnson/Evinrude 318914, Fits 9.9-14 HP Outboards

Sierra 18-2996-9 Outdrive Seal for OMC Stern Drive Applications, Pack of 5

Sierra 18-2964 Head Gasket for Johnson/Evinrude 150 HP (1973-91) and 155 HP Commercial (1984-92) Outboards

Sierra 18-2961 Head Gasket for Johnson/Evinrude 6 HP Outboard, 1965-79

Sierra 18-2952 Head Gasket, Replaces 203034, for Johnson/Evinrude 7.5 HP (1957-1958) Outboard Motors

Sierra 18-2945-9 Drain Screw Gasket for 3/8-16 Drain and Fill Screws, Replaces 307552, Pack of 2

Sierra 18-2946 Head Gasket - Replaces 16.50-00204 for GM 181 CID (3.0L) Marine Engines

Sierra 18-2944-9 Seal Ring Gasket - Fits R, MR, Alpha and Bravo Drives - Pack of 2