Sierra 18-3904 Standard Bore Inline Piston Ring

Replaces OEM part #OMC 394930

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 cyl

Interchangeable with:

• GLM
• 24210
• Johnson/Evinrude Outboard
• 394930
• Mallory
• 9-54416
• Wiseco
• 3500KD