
Key Features:
- Anti-Drain-Back Valve
- Engineered with premium grade materials that will excel in the
extreme marine environment - All canisters are 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
Additional Details:
- Thread Spec: 3/4′ x 16 or 6.4mm x 406.4mm NPT
The Sierra 18-7925 Oil Filter Replaces:
Fram
- PH2870A
Westerbeke
- 21235










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