1. Perfect Fitment: Unloader valve assembly is replacement for pressure washer pump, perfect matching. 2. Replace Part Number: The part number of pressure washer pump unloader valve is 309515003 and 308418003. 3. High Quality Material: Unloader valve is made of high quality high-quality material, high strength, sturdy and . 4. Original Standard: According to original standard, you can directly replace the old or damaged unloader valve assy. 5. Easy Installation: Easy to install, no complicated operation is required, convenient for using, save your time and energy. Item Type: Unloader Valve Application: Aftermarket replacement parts to replace the unloading valve Replace Part Number: 309515003, 308418003 310924003 308653052 308653035 Fitment: Replacement for Pressure Washer Pump Color: As Shown Material: Metal Package Contents: 1 x Unloader Valve Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.