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Sierra 18-9440-4 25W-40 FC-W Synthetic Blend Marine Engine Oil - 5 Quart

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

118-9440-4
9 reviews
03/13/2036 5:49 PM
Sale Price

$38.20

In Stock (10+)

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Usually delivered within 2 days

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Product Details

Sierra 18-9440-4 is a premium 4-stroke synthetic blend marine engine oil specifically formulated for the demanding conditions endured by sterndrive and inboard engines. This 25W-40 viscosity oil combines premium grade synthetic and mineral-based stock with advanced additives designed to maximize performance and extend engine life in modern high-horsepower marine applications.

Key Features:

  • NMMA FC-W Certified and API-SL rated for marine engine protection
  • Advanced lubrication reduces wear on internal engine components
  • Superior corrosion protection for harsh marine environments
  • Resists thermal breakdown under high RPMs, extreme temperatures, and heavy loads
  • Outstanding friction reduction and wear protection
  • Minimizes piston ring deposits for cleaner engine operation
  • 5 quart (4.73 liter) container

This synthetic blend oil is extensively tested to deliver outstanding performance in extreme marine conditions. Replaces Mercury 92-883725K01 and Mallory 9-82392. Cross-references include OEM part numbers 04189444, 29-7939, and 29-7940.

Fast shipping and great product. Great price. Will recommend you to others.

Seamless

It is the best

Quick delivery. Wish I could've ordered all my needed tv vent parts from you.

Easy to purchase, received my product rather quickly and on time.

Easy to find what I needed, killer price + reasonable shipping

Package shipped and arrived very quickly at a great price. Only suggestion would be to place the original packaging in an outer package as the box it arrived in appeared to be a little worn.

Very good and reliable service

Called to make sure it fit, ordered o line, great experience with ordering.

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