Hotstart HOTflow® CSM30904-000 Engine Heater for Sale
The Hotstart HOTflow® CSM30904-000 is a 9kW, 480V three-phase engine heater engineered for large diesel engines used in generator systems and industrial applications. Designed with a Style B configuration, this heater integrates a circulation pump to move heated coolant throughout the engine, helping maintain consistent temperature and eliminate hotspots.
This model is ideal for standby generators, hospitals, municipalities, data centers, and other critical infrastructure where reliable engine starting is essential. By keeping engines at optimal temperature, the CSM30904-000 helps reduce cold-start wear, improve system readiness, and extend equipment life.
Its efficient HOTflow® design reduces unnecessary heating cycles, improving overall energy efficiency while maintaining dependable performance in demanding environments.
Free shipping included. Typical lead time is 2 to 4 weeks depending on manufacturer availability. Contact us for best pricing and availability.
Need a different configuration?
- Single-phase option: CSM10904-000
- Higher or lower kW options available
- View all Hotstart CSM heaters →








