Genuine OEM Mercury / Quicksilver Under-Cowl Fuel Filter (Part # 35-8M0122423)

Shop the genuine OEM Mercury 35-8M0122423 Under-Cowl Fuel Filter. Fits Mercury V6 & V8 4-Stroke, Pro XS, and Verado outboards (175–300 HP). Fast shipping.

Protect your modern high-displacement engine from fuel contamination with the Genuine OEM Mercury / Quicksilver Under-Cowl Fuel Filter (Part # 35-8M0122423). Specially engineered for Mercury's late-model V6 and V8 FourStroke engine platforms, this factory replacement element mounts under the engine cowl inside the red fuel filter housing to capture fine particulates, water droplets, and fuel line debris before they can reach high-pressure fuel pumps or delicate fuel injectors.

Designed to handle the demands of ethanol-blended gasolines, this high-efficiency filter cartridge maintains maximum fuel flow without causing pressure drops in the Vapor Separator Tank (VST) circuit. Replacing your fuel filter every 100 hours or annually during routine maintenance prevents fuel starvation, hard starting, and costly engine repairs.