Mercury 39-18514a4 - Piston Ring 4 pcs.

Mercury piston ring set, part number 39-18514A4, 4 pieces. Worn rings cause low compression, oil burning and loss of power.

• Mercury part number: 39-18514A4
• 4 rings per set

Ring sizes are specific to your engine and bore. Send us your engine model and serial number and we'll confirm the fit.