WESPC Water Pump OE51169 High Flow Coolant Pump Gaskets for Diesel Engine

OE51169 Water Pump is specifically engineered for Perkins engines, with core compatibility for mainstream models including the Perkins 400 Series (e.g., 404D-22TA, 403D-17) and 1100 Series (1104C-44T, 1103A-33TG1). It is extensively utilised in small to medium-sized generator sets (10-100kVA), construction machinery (compact loaders, micro excavators), agricultural equipment (tractors, seed drills), and industrial auxiliary systems. It serves as the core power component within the engine cooling system.

As the ‘power heart’ of the engine cooling system, the OE51169 water pump drives the impeller to rotate at high speed via belt transmission. It pressurises and circulates low-temperature coolant from the radiator to the engine block and cylinder head water jackets, absorbing the high heat generated by combustion. The heated coolant is then returned to the radiator for cooling, forming a closed-loop thermal dissipation circuit. During operation, it precisely regulates engine operating temperature (maintaining the optimal range of 80-95°C), preventing failures such as piston seizure or cylinder block deformation caused by overheating. When original equipment water pumps exhibit issues like leakage, impeller wear, or bearing noise, the OE51169 serves as an original equipment-grade replacement, swiftly restoring cooling system efficiency to ensure long-term, stable engine operation.