The ZeroStart 3500108 Engine Block/Coolant Heater is a heavy-duty, high-performance heating solution designed to deliver reliable preheating for large diesel engines operating in cold-weather conditions. Rated at 1500 watts and 240 volts, this direct-immersion style heater efficiently warms the engine coolant and surrounding water jacket, helping ensure faster, smoother cold starts while reducing engine wear and improving overall starting performance. Featuring a robust metal construction, integrated mounting plate, durable heating element, and heavy-duty power cord, the 3500108 is engineered for demanding commercial and industrial applications, particularly Cummins ISX/Signature-series diesel engines. Its dependable design makes it an ideal choice for maintaining engine readiness, minimizing cold-start difficulties, and maximizing reliability in low-temperature environments.
Specifications:
- Brand: ZeroStart
- Type: Plate Immersion Engine Heater
- Power: 1500 Watts
- Voltage: 240 Volts
- Mounting: 2-Bolt Plate
- Installation: Right side of engine block near rear of water inlet casting
Application:
- Manufacturer: ZeroStart / Phillips & Temro
- Part number: 3500108
- Rating: 1500 W, 240 V
- Type: Plate-style immersion engine heater
- Primary application: Cummins Signature 600, ISX, and APEX diesel engines.
- Replacement power cord: ZeroStart 8608377
- Purpose: It preheats the engine coolant/block in cold weather, making a large diesel engine easier to start and reducing cold-start wear.















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