
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: 1′ X 12 or 25.4mm x 304.8mm NPT
The Sierra 18-7926 Oil Filter Replaces:
Fram
- PH3306A
Mallory
- 9-57905
- 9-57909
Volvo Penta
- 423135
- 4785974
- 4785974-9
- 423135-3









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