Description
HOTSTART in-block engine heater, part CNT-151B. Installs directly into a core (freeze) plug, threaded plug or plate opening in the engine block to heat the coolant for faster cold starts, reduced engine wear and lower start-up emissions. Supplied complete with a 2-wire w/ground 6 ft (1.8 m) HPN cord and plug.
- Wattage: 1500 W
- Voltage options: 120 V
- Engine makes: Cummins
Engine applications: Cummins Group II – uses an O-ring for the 1-1/4″ water tube connection (engines produced prior to August ’75).
Installation / fitment: 6 bolt, flat plate design with an elbow that will rotate 360 degrees to connect with any hose or casting.




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