7105406 CHECK VALVE KIT EW4040 INJECTOR BYPASS AAA PUMPS

The 7105406 Check Valve Kit is the bypass check valve, O-ring and tension spring used on AAA EW4040 pressure washer pumps used by many different brands of pressure washer including Simpson Cleaning, DeWalt, Delco, Black and Decker, Cub Cadet and others.

The Check Valve Bypass Kit allows the pump to go into a by-pass mode when the trigger is released so that water will not continue to build pressure and stall the engine.

Service Note:

The O-Ring Needs to face the pumps brass manifold when being reinstalled for proper installation and pump operation.