Sierra 18-7709 Fuel Filter Sierra replacement canister fuel filter for Volvo Penta engines. Sierra fuel filters are designed to meet or exceed OEM specifications. An epoxy coated steel canister prevents corrosion inside the canister from reaching your fuel system. SAE, JIS and ISO tested and approved. Sierra recommends replacing your filter every 50 hours of operation or at a minimum of once per year preferably at winterization. Interchangeable with Volvo Penta 3840335 21624740 California Reside