Sierra 18-3998 Piston Rings
Sierra high-quality engine parts are designed to meet OEM specifications.
Interchangeable with:
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
Other Details
Sierra 18-3918 Mercury Marine Piston Rings Sierra high-quality engine parts are designed to meet OEM specifications. Bore Size: 2.875 / Standard For 2 ring pistons Interchangeable...
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Sierra 18-3979 Piston Rings Sierra replacement piston rings for Mercury Marine Outboards. Bore Size: 3.375 / Standard Interchangeable with: GLM 14910 Mallory 9-54229 Mercury...
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Sierra 18-3911 Piston Rings Sierra replacement piston rings for Johnson/Evinrude Outboards. Bore Size: 3.020 .020 O.S. Interchangeable with: GLM 24260 Johnson/Evinrude...
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Sierra 18-3923 Piston Rings Bore Size 3.125 / .030 Interchangeable with: GLM 14260 Mallory 9-54235 Mercury Marine 38-85636A4 Wiseco 3155KD
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