Industrial Z104 Pump Valve Assembly Kit

Industrial Z104 Pump Valve Assembly Kit for Champion R30 air compressors is a genuine rebuild bundle built around the Z-104 complete valve assembly kit and designed to restore the valve train on Champion R30-series pumps. It is compatible with Champion R30 models (including R30A and R30B) and is commonly packaged with the Z-765 gasket set, Z-179C and Z-189B piston ring sets, an oil seal, and air filter elements to recondition one compressor. The kit is suitable for Champion Model R30 units manufactured before September 1, 1990 (serials below 25,976); in 1990 Champion redesigned the HP suction valve seat diameter, but the valve internals did not change, so the Z-104 kit remains the correct choice for older designs. Associated part numbers in the Champion catalog include Z104, Z765, ZR-30, Z-189B, and Z-179C, reflecting a comprehensive rebuild solution for the R30 family. With a shipping weight around 5 lb and packaging dimensions near 13 x 10 x 4 inches, this multi-part kit consolidates essential components for replacing worn or damaged valve gaskets, piston rings, seals, and related parts—helping restore compressor performance without sourcing individual items from multiple vendors.