Motorcraft FL-820-S High-Efficiency Spin-On Oil Filter – Anti-Drain Back Valve Design

OEM Quality – Recommended by Ford, Lincoln & Mercury for vehicles specified to use the FL‑820‑S filter.

Enhanced Filtration Media – A blend of cellulose and polyester media formulated for high capacity and strength. Helps capture engine‑wear causing particles

Efficient Particle Capture – Rated for approximately 80% efficiency on particles 20 microns and larger.

Anti‑Drain Back Valve – Silicone anti‑drain back valve helps prevent oil from draining out of the filter when the engine is off, which aids in protecting against “dry starts.”

Pressure Relief / Bypass Valve – Maintains oil flow in cold conditions or if the filter becomes clogged, ensuring the engine isn’t starved for oil

Durable Construction – Steel canister “ironed” for precise fit, fluted for easier removal, painted to resist rust