John Deere RE506050 Water Pump Assembly

The John Deere RE506050 water pump is an original equipment cooling system component designed for 3.0L 3029 and 4.5L 4045 diesel engines. It circulates coolant through the engine block and radiator to maintain optimal operating temperature under heavy agricultural duty cycles. The pump assembly features a cast iron housing with precision-machined impeller and sealed bearing unit. It mounts directly to the engine front cover with a 79 mm flange bolt pattern. Total installed length is 179 mm. The unit weighs 8.94 kg (19.7 lbs) and replaces multiple superseded part numbers including R503548, R91810, R97081, and R73601. Compatible with John Deere 5000, 5010, 5020, and 5E series tractors.