In-Block Immersion

Coolant

HOTSTART preheaters are available for most leading makes and models of heavy-duty truck engines and are CSA approved.

HOTSTART's line of In-Block heaters mount directly into the water jacket of the engine. These direct immersion block heaters reduce engine wear due to cold starts by up to 50 percent. Warming the engine to the proper temperature also reduces idling and cranking time, saving fuel and increasing battery life.