Original CL150812-200 | Engine Heater
- HOTSTART CL150812-200 Engine Heater – Weather-Tight Coolant preheater with Thermostat
- Pre-Heat: Diesel and Gas engines, construction equipment, trucks, marine and industrial applications
- Heating Fluid: Engine Coolant, Water, other – No pump needed (thermosiphon principle)
- Engine Displacement: 1350 – 1650 CID (22.1 – 27.0L)
- Volts: 208v – kW: 5.0 – AMPS: 24 – 60Hz – Single Phase
- Temperature Range: ON: 120°F (49°C) – OFF 140°F (60°C)
Call for Quote for international purchases!
$689.99
HOTSTART CL coolant preheaters deliver reliable temperature maintenance for diesel and gas engines across construction, trucking, heavy-duty mobile equipment, marine, and industrial applications. These engine heaters maintain operating temperature during shutdowns, improve cold-weather starting, and reduce fuel waste caused by unnecessary idling.
HOTSTART CL models use the thermosiphon circulation method to move heated coolant without a mechanical pump, providing consistent and efficient heat transfer. This passive design promotes even heat distribution, minimizes engine wear, improves startup performance, and reduces emissions.
Built with a pressure die-cast aluminum tank, HOTSTART CL heaters offer long-term durability in demanding environments. Each heater includes a high-limit safety thermostat rated at 205°F (95°C) to ensure safe, dependable operation. These single-phase heaters support hard-wire installation using rigid or flexible conduit and are available with optional flow-through thermostat assemblies.






