Replacement unloader valve assembly designed to restore proper pressure control and protect your pressure washer pump. This directfit aftermarket replacement meets original specifications and installs quickly with basic tools. Key benefits Precise fit and compatibility: Direct replacement for pressure washer pumps that use part numbers 309515003 and 308418003. Suitable for compatible Troy Bilt pressure washer pump models. Durable materials: Constructed from steel alloy and copper for strength, corrosion resistance, and long service life. Restores pump function: Replaces worn or damaged unloader valves to recover correct pressure regulation and reduce stress on the pump. Easy installation: Designed to match the original assembly for straightforward swapout with no complex adjustments required. Saves time during maintenance or . Features Item type: Unloader valve Materials: Steel alloy and copper Application: Aftermarket replacement part for original unloading valve assemblies part numbers: 309515003, 308418003 Fitment: Replacement for compatible pressure washer pumps Included in package 1 x Unloader valve Typical use scenarios Routine : a leaking or stuck unloader valve during pump maintenance to restore reliable pressure control. Emergency replacement: Swap the valve after a pump failure to get equipment back in service quickly. Seasonal servicing: Install during seasonal tuneups to prevent pressure fluctuations and extend pump life. Notes Verify the replacement part number on your unit before . Compatibility information is provided for reference only. If you are unsure whether this part matches your equipment, confirm the part number prior to buying to avoid returns.