Sierra 18-7910-1 marine diesel 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. Valve eliminates dry starts, prevents oil from draining back into crankcase during engine shutdown. Thread Spec: 20mm x 1.5. Replaces: Mallory 9-57810, Westerbeke 30220, Yanmar 124450-35100, 119660-35150, 119305-35151, 119305-35150.

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.

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