Genuine GM 12639277 WIF Water In Fuel Sensor 2001-2011 Duramax LB7 LLY LBZ LMM LML


SKU: 12639277
Over time, the water in fuel sensor (WIF) can become brittle or damaged from improper removal. Its not uncommon to find the wires broke off or corroded, inhibiting sensor operation. Damage to this sensor could prevent the water in fuel light from coming on and warning you of potential fuel system problems.

Part Number: 12639277

Fitment: 2001-2011 Chevy/GMC 6.6L Duramax Diesel Engines (LB7 / LLY / LBZ / LMM / LML)