21781059 Compatible Water Pump — Volvo FH16

What does a water pump do?

This water pump plays a critical role in the engine cooling system by circulating coolant between the engine block and the radiator. Designed for heavy-duty commercial vehicle applications, it ensures that heat is effectively managed to prevent engine overheating during intensive operation.

Vehicle and engine compatibility

This component is specifically fitted to Volvo FH16 trucks featuring the D16G engine. It serves as a reliable replacement for original equipment, maintaining the required flow rates and pressure within the cooling circuit of these high-performance engines.

Maintenance and inspection

Technicians should inspect the pump during routine cooling system maintenance or when replacing belts. Signs such as coolant leakage from the weep hole or unusual bearing noise indicate that replacement is necessary to protect the engine from thermal stress.

Troubleshooting guidance

Always verify engine compatibility before installation to ensure correct flange alignment and seal fitment. Consult your authorized distributor for any technical inquiries regarding this component.

OE cross-reference

525.03.0009 (Water Pump Water Pumps) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 21781059.