GM Part #22043290 Washer Pump Ratchet Wheel Part Description This is a genuine GM NOS ratchet wheel used in windshield washer pump assemblies. It engages with the motor cam to drive the pump mechanism, ensuring proper fluid delivery during wiper operation. OEM Part Number: 22043290 Type: Washer Pump Ratchet Wheel Group Number: 10.153 (GM catalog) Material: White molded plastic Condition: NOS (New Old Stock), factory packaging Fitment & Compatibility Confirmed applications include 19761983 GM vehicles, especially: Chevrolet: Camaro (Z28, Berlinetta, Sport Coupe), Chevelle, El Camino Pontiac: Firebird (Base, S/E, Trans Am), Grand Prix Oldsmobile: Cutlass, 442 Buick: Regal, Century GMC: Sprint, Caballero Used in Delco windshield wiper motor washer pump assemblies, typically mounted on the front cowl or firewall. Cross-Reference Numbers Manufacturer Part Number Description GM 22043290 Washer Pump Ratchet Wheel Superseded 4919971 Earlier version replaced by 22043290 Delco 22048290 Alternate catalog listing (interchangeable)
