This fuel filter with an integrated water separator removes particulate and moisture from the fuel supply before it reaches the injection system. It mounts on the engine in the fuel line between the lift pump and the high-pressure pump. The water-separator element collects condensed water at the bottom of the canister, where it can be drained during routine service. A clogged filter restricts fuel flow, causing power loss and rough running, while accumulated water can damage the injection pump. This component is manufactured to the original housing’s seal geometry and thread pitch, ensuring a leak-free seal and proper bypass-valve operation. On replacement, drain the water bowl and prime the system before starting the engine.