Featuring a fully pressed and fused aluminium tank design, they are believed to be the only radiators currently on the market that are not welded. This offers superior strength in contrast to welded units, which are prone to cracking over time with Heavy Duty use. In effect, Terrain Tamer Heavy Duty radiators are far more durable, and strong enough to perform in harsh outback environments or for tough mining applications.

Additionally, the Heavy Duty Radiators are manufactured with a low level warning plug, allowing them to be fitted with an optional extra in-dash warning indicator device. Once fitted, this unit warns the operator in the event of radiator or hose damage, which may result in coolant stopping activation and can potentially cause extensive and costly damage.