Sierra 18-7915-1 marine oil filter. Anti-Drain-Back Valve. Engineered with premium grade materials that will excel in the extreme marine environment. Epoxy coated for corrosion resistance. Heavy-wall steel canister for further corrosion protection. High-efficiency filter media that meets or exceeds the OE’s filtration. Backed by Sierra’s industry leading warranty. Thread Spec: 3/4″ x 16 or 19.1mm x 406.4mm NPT. Replaces: Johnson/Evinrude/OMC 5031411, 778885, Mallory 9-57817, Suzuki Outboard 16510-87J00.
About Sierra
Sierra provides premium-quality aftermarket replacements for over 6,000 marine parts, tools, and components. Sierra products are engineered to meet or exceed OEM standards, and stand up in harsh marine environments. Every new Sierra part comes with a limited lifetime warranty that covers the useful life of the product against any defects in workmanship and materials.








