HOTSTART Engine Heaters &
Thermal Management Solutions
The complete HOTSTART product line — engine heaters, lube oil heaters, battery heaters, control systems, and replacement parts. All in one place.
Expert Technical Support • Same-Day Shipping Available • OEM Parts & Accessories
TPS Heaters
Compact thermosiphon coolant heaters for small-to-medium diesel and gas engines. No pump required — natural convection circulates heated coolant through the engine block.
Shop TPS SeriesCB Engine Heaters
Pressure die-cast aluminum tanks with built-in high-limit thermostat. Multiple heat and voltage options. The go-to workhorse for standby generators and diesel engines.
Shop CB SeriesCL Engine Heaters
Higher wattage thermosiphon heaters for larger engines. Same proven die-cast aluminum tank as the CB, with increased heat output for demanding applications.
Shop CL SeriesCSM HOTflow® Heaters
Pump-driven forced circulation delivers superior heat distribution. Up to 12 kW and 10 GPM flow rate — ideal for large engines and critical standby applications.
Shop CSM SeriesSB Engine Heaters
Compact, economical thermosiphon heaters for smaller engines and space-constrained installations. Reliable natural convection heating in a smaller footprint.
Shop SB SeriesSL Engine Heaters
Standard thermosiphon coolant heaters offering reliable performance across a broad range of engine sizes and applications. A versatile, proven solution.
Shop SL SeriesCKM Engine Heaters
HOTflow® forced-circulation heaters engineered as direct drop-in replacements for legacy Kim Hotstart convection-based systems. Upgrade without re-plumbing.
Shop CKM SeriesCTM Engine Heaters
Forced-circulation coolant heaters for medium-to-large engines requiring pump-driven heat distribution. Reliable performance in demanding industrial environments.
Shop CTM SeriesEVRHEAT Series 20
Intelligent heater with operator display and integrated controls. Indicator lights show real-time heater operation and temperature status for efficient, reliable performance.
Shop EVRHEATEE Series — Hazardous Location
UL C/US listed and IECEx/ATEX certified heaters for Class 1, Division 1 & 2 hazardous locations. Engineered for oil & gas, petrochemical, and offshore applications.
Shop EE SeriesWL Engine Heaters
Weathertight thermosiphon coolant heaters designed for outdoor and exposed installations. Sealed enclosures protect against moisture and environmental contaminants.
Shop WL SeriesIn-Block Heaters
Immersion-style heaters that install directly into engine block freeze plug openings. Simple installation, no external plumbing required for many applications.
Shop In-Block HeatersLube Oil Heaters — OE Models
Original equipment lube oil heaters for maintaining proper oil viscosity at startup. Reduces wear on bearings, gears, and other lubricated components in cold environments.
Shop OE ModelsLube Oil Heaters — OW Models
OW series lube oil heaters for applications requiring specific wattage and configuration options. Engineered for reliable oil temperature maintenance in industrial machinery.
Shop OW ModelsBattery Heaters — Heating Pads
Battery heating pads maintain battery temperature at 80°F for reliable cold-weather cranking power. Designed for locomotives, trucks, heavy equipment, and standby systems.
Shop Battery Heating PadsBattery Heaters — Thermal Wraps
UL Recognized thermal wraps wrap around the battery case to maintain temperature. Flexible installation for a wide variety of battery sizes and configurations.
Shop Thermal WrapsAdhesive Silicone Pad Heaters
Flexible adhesive silicone heating pads for oil pans, fuel tanks, and other surfaces requiring localized heat. Bonds directly to metal surfaces for efficient heat transfer.
Shop Silicone Pad HeatersOil Pan & Fuel Tank Heaters
Heating pads specifically designed for oil pans and fuel tanks. Prevents fuel gelling and maintains oil viscosity in extreme cold-weather operating environments.
Shop Oil Pan & Fuel Tank HeatersNeed Help Selecting the Right HOTSTART Heater?
Our technical sales engineers have been specifying HOTSTART heaters. We'll help you select the right model, size it correctly, and get it shipped fast.