543.03.0006 Compatible Expansion Tank for Volvo and Renault Trucks

What does a radiator expansion tank do?

This radiator expansion tank plays a critical role in the vehicle cooling system by managing coolant volume changes and maintaining optimal pressure. By providing a controlled space for thermal expansion, it prevents pressure spikes that could damage hoses or the radiator itself. Built with high-strength components, this part ensures long-term durability under intense thermal cycling.

Compatible vehicles and engines

This component is compatible with various heavy commercial vehicle models, including Volvo FH (FH4/FH5), FM, FMX, VHD, VNL, and B-series trucks. It is also fitted to Renault Trucks models such as the T, C, K, Premium, Magnum, and Kerax series. These units are specifically engineered to support engine series like the D13K, D11K, DXi13, and DXi11.

Installation and maintenance

For correct installation, workshop technicians should ensure the cooling system is fully depressurized before removing the old tank. It is essential to inspect all mounting points and connection ports for any signs of debris or residue. Ensuring a clean seal during installation prevents air pockets from entering the cooling circuit.

Troubleshooting and selection

Regular inspection of the expansion tank can help identify early signs of system stress. Maintaining this component as part of a proactive service schedule helps prevent overheating issues in heavy-duty trucks and construction machinery.

OE cross-reference

543.03.0006 (Radiator Expansion Tank) is the equivalent of the Renault Trucks and Volvo OE numbers. This part directly replaces Renault Trucks OE numbers 5010619306, 7420828416, 7421055339, 7422064150, 7455064150, 7485132205. It also replaces Volvo OE numbers 20828414, 20828416, 22064150, 82582767, 85132205.