Heavy Duty Coolant

5 Specialized Formulations

For the hardest working heavy duty engines on earth

We’re the HD Coolant Experts.

For the toughest jobs. For the harshest conditions. For the longest hauls.

Our patented precision formulas keep your HD engine cool, clean, and running at optimum performance. HD Expert’s team of researchers and technicians have fine tuned our line up of five HD coolants, each offering the most advanced technology.

One focus.
Heavy-duty engine coolants.

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