Description
Sierra’s 18-7913 Oil Filter is engineered to deliver reliable oil filtration and engine protection for select Yamaha outboard applications, including 8/9.9 HP (323cc), 15/20 HP carbureted, and 25/30 HP EFI (MY2006 and newer) engines. It features an anti-drain-back valve to help maintain oil pressure at startup, reducing dry starts and supporting improved engine longevity. Built with a heavy-wall steel canister and epoxy coating, it provides enhanced corrosion resistance for long-lasting durability in harsh marine environments. The high-efficiency filter media meets or exceeds OEM filtration standards, ensuring consistent performance and dependable protection in demanding conditions.
Features
- Anti-drain-back valve helps maintain oil pressure and reduce startup wear
- Heavy-wall steel canister with epoxy coating for corrosion resistance
- High-efficiency filter media meets or exceeds OEM filtration standards
- Designed for select Yamaha outboard engines including 8–30 HP applications
- 20mm x 1.5 thread specification for secure and proper fitment
- Thread Spec: 20mm x 1.5
- 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






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