In-Block Heaters

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In-Block Heaters

Hotstart In-Block heaters mount directly into the water jack and can reduce wear up to 50%.

HOTSTART's line of In-Block heaters mount directly into the water jacket of the engine and can reduce engine wear due to cold starts by up to 50%. Warming the engine to the proper temperature also reduces idling and cranking time, saving fuel and minimizing maintenance. HOTSTART preheaters are available for most leading makes and models of heavy-duty truck engines and are CSA approved.

To specify an in-block heater for your heavy-duty engine, please select your engine manufacturer and model in the drop-down below.

Not intended for hazardous locations.

Heating Information

Primary Heating

Coolant Mix

Primary Heat Power

300 W
400 W
530 W
750 W
1 kW
1.25 kW
1.5 kW

Power Specifications

Power Sources

AC, Single-Phase, 50/60 Hz

Voltages

Power Connectors

NEMA Plug
No Cord

Temperature Control

Primary Temperature Control

Mount Types

See In-Block Heater Search

Certifications

In-Block and Replacement Thermocords

Thermocords complete the In-block heater assembly by providing a power cord and plug for the engine.

HOTSTART In-block Thermocords complete the in-block heater assembly, providing a power cord and plug for use with the installed engine block heater. Cords are available with or without thermostats and…