Up To 20% Off Your Order! Use Promo Code: MEMORIAL

Sierra Piston Rings For Mercury Marine/OMC Engine, Sierra Part #18-3939

Item # 750047
Please make sure all selections are complete and a valid quantity is entered and try again.

Ships within 15 - 20 days


  • Sierra Part #18-3939

  • Piston rings

  • For Mercury Marine/OMC engine

Product Summary 

Sierra piston rings for Mercury Marine/OMC engine. Sierra Part #18-3939.

OEM Part Numbers:
Mercury Marine: 39-66217
OMC: 914556
OMC: 3854252