Sinotruk HOWO Fuel Preliminary Filter 1000422384 – Water Separator for Weichai WP10WP13

Contaminated fuel is a guaranteed way to ruin a modern engine. The 1000422384 Fuel Preliminary Filter is the essential first stage of filtration for Sinotruk HOWO and Sitrak trucks running on Weichai WP10 and WP13 engines.

Functioning primarily as a water separator, this unit is installed on the low-pressure side of the fuel system. Its job is to strip out moisture and large debris from the diesel tank before the fuel reaches the transfer pump. For high-pressure common rail engines (like the WP13), removing water is critical—even trace amounts can cause corrosion and catastrophic failure in the high-pressure pump. This genuine filter features a durable, transparent (or metal, depending on batch) collection bowl and a high-capacity element designed to handle the flow rates of heavy-duty horsepower without restricting performance.

Technical Specifications:

• Part Number: 1000422384

• Part Type: Fuel Preliminary Filter / Pre-filter / Water Separator

• Application: Sinotruk HOWO T7H, A7, Sitrak C7H, Shacman X3000

• Engine Fitment: Weichai WP10, WP12, WP13 Diesel Engines

• Filtration Stage: Primary (Coarse Filtration + Water Separation)

• Mounting: Spin-on type for easy maintenance

• Flow Rate: High-flow design for 300HP+ engines

• Function: Protects the fuel lift pump and high-pressure system from water damage.