543.03.0009 Radiator Expansion Tank for DAF and Volvo

What does a radiator expansion tank do?

This radiator expansion tank plays a critical role in maintaining the correct coolant pressure and volume within the engine cooling system. By managing thermal expansion and contraction of the coolant, it prevents pressure spikes and helps maintain stable operating temperatures for heavy-duty engines.

Vehicle and engine compatibility

This component is engineered to fit a wide range of heavy commercial vehicles, including Volvo models such as FH, FM, FMX, VNL, and B11R/B13R series. It is also compatible with Renault Trucks models like T, K, Premium, C, and Magnum engines. Additionally, it serves DAF XF105/CF85 and Mack Anthem/Granite/Pinnacle applications.

Installation and maintenance guidance

To ensure proper fitment during installation, technicians should verify the mounting points and connection ports against the existing unit. Regular inspection of the tank body and its connections is recommended to prevent coolant loss or pressure drops in the system.

Selection guidance

Consult your authorized distributor to confirm exact fitment for your specific chassis and engine configuration.

OE cross-reference

543.03.0009 (Radiator Expansion Tank) is the equivalent of the DAF, Renault Trucks and Volvo OE numbers. This part directly replaces DAF OE numbers 1404524, 1700772. It also replaces Renault Trucks OE numbers 5010263004, 7420783901, 7420828448, 7482582816 and Volvo OE number 20783901.