Sierra 18-3921 Piston Rings Replaces 39-93481A12

Sierra 18-3982 Standard Piston Rings For Mercury Outboards Sierra high-quality engine parts are designed to meet OEM specifications. 18-3982 Piston Rings are for Mercury and Mariner Crossflow and...

Sierra 18-3904 Piston Ring for Johnson and Evinrude Engines Sierra replacement engine parts are designed to meet OEM specifications. Standard 3.5 Bore Fits: 85-300 HP 4 & 6...

Sierra 18-3913 Piston Rings for Johnson/Evinrude Engines Sierra replacement piston rings for Johnson/Evinrude Outboards. Fits: 35-60 hp 2 & 3 cylinder engines Bore Size: 3...

Sierra 18-3910 Piston Rings for Johnson/Evinrude Engines Sierra high-quality engine parts are designed to meet OEM specifications. 3.000 std. Bore size Fits: 25-35 hp, 2 cylinder 60-75 hp,...

Sierra 18-3974 Piston Rings for Johnson/Evinrude Engines Sierra high-quality engine parts are designed to meet OEM specifications. .030 Over Bore Size 3.715 Port and Starboard...

Sierra 18-3905 Johnson/Evinrude Piston Rings Sierra high-quality engine parts are designed to meet OEM specifications. Bore Size: 3.530 Interchangeable...