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

Item # 750047
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Ships within 5 - 6 business 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