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PLEASE NOTE - - WE WILL BE CLOSED FRIDAY JULY 1st through MONDAY JULY 4th in observance of Independence Day.
Orders received during this time will be processed when we resume normal business hours on Tuesday, July 5th!

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4-Stroke Premium Blend Marine Engine Oil 25W-40 - 5 Quart Sierra™ 18-9400-4

$48.60 $50.59

Sierra's Premium Blend 25W-40 engine oil is specially formulated to meet the needs of inboard & stern drive marine engines. Sierra premium blend sterndrive or inboard engine oil SAE 25W-40...

Sierra's Premium Blend 25W-40 engine oil is specially formulated to meet the needs of inboard & stern drive marine engines.

  • Sierra premium blend sterndrive or inboard engine oil
  • SAE 25W-40
  • 5 quart jug
  • Recommended for use with inboard and sterndrive applications
  • Developed specifically for the marine environment and the high running stresses marine engines encounter
  • Out performs standard 4-cycle automotive engine oils
  • Protects internal engine components from rust, corrosion & from sticking piston rings
  • Features excellent detergency, anti-oxidants & anti-wear properties
  • Excellent low temperature operating properties
  • Meets or exceeds quality performance API SJ CF-4 CH-4
  • Ideal for use in Mercruiser & OMC engines
  • NMMA FC-W certified
  • Replaces Yamaha LUB-20W40-FC-04
  • Replaces Bel-Ray 99730-BT4
  • Replaces Sierra 18-9400-3