HEAVY DUTY

Expansion Tanks & Caps

Name: Expansion tanks (trucks)
Brand: NRF

NRF expansion tanks for heavy-duty vehicles are designed to efficiently manage cooling system pressure fluctuations. Manufactured from high-grade materials, they offer a long service life and excellent resistance to vibration, ensuring reliable performance under demanding operating conditions. NRF expansion tanks are Easy Fit, which means they always include the filler caps. NRF filler caps are also available separately as replacement parts.

Discover our range

The function

Expansion tanks in trucks manage coolant volume changes caused by temperature fluctuations within the engine cooling system. They provide space for excess coolant as it expands and return it to the system as it cools, maintaining balance throughout operation.

This helps stabilise system pressure, prevent coolant loss, and ensure reliable engine temperature control. It supports consistent performance and protects heavy-duty engines operating under continuous load and demanding conditions.

Expansion Tanks & Caps

Product Testing & Validation

Each NRF expansion tank is validated through pressure, leak, and vibration testing to ensure reliable performance under demanding conditions. These tests confirm structural integrity and secure operation across the full range of operating pressures.

Additional thermal cycle validation ensures durability under the intense temperature fluctuations typical of truck applications. This guarantees long-lasting performance, stable coolant management, and dependable engine protection in heavy-duty use.