A DEFA engine heater is an electric device that preheats the engine before starting. By warming up the engine in advance, it reduces wear during cold starts, improves fuel efficiency, and lowers emissions.

Hose Heater: Installed in the cooling system hoses, it warms the engine by circulating heated coolant. It is particularly useful when it is not possible to install a block heater.
Block Heater: Mounted directly onto the engine block, it heats the engine from within by warming coolant or oil inside the block. This provides efficient engine heating and makes cold starts easier.

To select the correct DEFA engine heater, you should first identify your engine’s specific model and type. Then, you can refer to compatibility lists or contact Sagro’s customer service to ensure you choose the right engine heater for your vehicle.