7421814005 Renault Trucks K DXi Water Pump

What does a water pump do?

The water pump serves as a critical component within the engine cooling system, acting as a centrifugal-type pump that continuously circulates coolant between the engine block, cylinder head, radiator, and heater core. This component is essential for preventing overheating in heavy commercial vehicle engines by maintaining a steady flow of coolant throughout the entire thermal management system.

Compatible Renault Trucks models and engines

This specific model is engineered for Renault Trucks K series vehicles, including the 520T, 520P, 440P, 480P, and various XTREM configurations. It is specifically compatible with DXi engines found in models such as the K480, K520, and K440. This ensures precise fitment for heavy-duty truck applications and construction machinery engines.

Maintenance and replacement guidance

When performing maintenance, technicians should inspect the pump housing and impeller for signs of wear or leaks. It is recommended to inspect or renew this component during timing belt or alternator belt service intervals to prevent sudden engine overheating. Proper installation ensures the shaft and mechanical seals function correctly under high-pressure operating conditions.

Troubleshooting cooling system issues

Maintaining a stable coolant flow is vital for engine longevity. If you notice coolant leaking from the weep hole or unusual noise during operation, it may indicate bearing play or seal failure. Check the compatibility list to ensure this part meets your specific engine requirements.

OE cross-reference

525.03.0008 (Water Pump Water Pumps) is the equivalent of the Renault Trucks OE number. This part directly replaces Renault Trucks OE number 7421814005.