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Sierra 18-3904 Piston Ring Set for Johnson Evinrude Outboard Engines

Manufacturer

Picture for manufacturer Sierra

Part Number

118-3904
8 reviews
Sale Price

$29.11

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-3904 is a premium piston ring set engineered specifically for Johnson and Evinrude outboard engines. This complete OEM replacement ring set plays critical roles in sealing the combustion chamber, transferring heat from the piston to the cylinder wall, and regulating engine oil consumption.

Key Specifications:

  • Standard bore size: 3.5 inches (88.9mm)
  • Fits Johnson/Evinrude 85-300 HP engines with 4 and 6 cylinders
  • Replaces OEM part number 0394930
  • Complete set includes top ring, second ring, and oil ring
  • Cross-references: GLM 24210, Mallory 9-54416, Wiseco 3500KD

Features:

  • Meets or exceeds original equipment specifications
  • Engineered to withstand harsh marine environments
  • Available in various sizes, thicknesses, and materials to complement your pistons
  • Backed by Sierra's comprehensive warranty coverage

Sierra Marine has been a trusted leader in aftermarket marine engine parts for over 50 years, supplying quality components to OEM manufacturers and boat builders. Each piston ring set is manufactured to exacting standards to ensure reliable performance and long service life in demanding marine applications.

Every thing went fast with no problems while ordering

Good

Great! Thanks!

Ordering was easy and item was delivered on time.

Better price, easier checkout than some sites

Very nice web site.

Easy to order! Shipped promptly and was kept imformed on expected arrival date. No muss no fuss just good service! Thanks. Pete

Great price on Goodyear trailer tires & delivered within a week!

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