Need Help?
Call or text
Show parts
This part has been discontinued by the manufacturer and is no longer available.
This part is discontinued by the manufacturer and is no longer available for purchase.
This is a replacement kit for a pressure control valve in a Hydro-Gear hydrostatic transaxle assembly used in riding lawn mowers. It includes a spring, ball and pin that work together to limit the pressure of the fluid flowing between the fluid power system and the transaxle case. After fluid flows through the system, lubricating the pistons and other parts, a charge pump pushes it back into the flow. If the fluid isn't needed to increase the pressure in the system, the unneeded fluid is passed back through the charge relief valve into the transaxle case. The charge relief valve may need to be replaced if the engine becomes noisier than usual, if the transmission fluid is dirty, if the spring becomes worn or damaged or if the check ball isn't seated properly. This requires disassembling the center section of the transaxle assembly and removing the pin, spring and ball. This can be accomplished by using a clean, flat screwdriver to depress the charge spring, allowing the pin to slide out. This kit can be used in several brands of lawn mowers including Endore, Scag, Hustler Turf and Big Dog. This is an OEM part sourced directly from the manufacturer and is sold individually.