18-7420-9 - O-Ring (PK5) 25-21836

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Part Number

Sierra Marine

18-7420-9 (5 Pk)

Replaces: 25-25439

  • I.D.- .862
  • Width- .139
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Sierra Marine is the market leader for aftermarket marine engine parts. Sierra products cover every major engine brand. Sierra offers a comprehensive product line and an unsurpassed customer satisfaction warranty covering parts and labor.