Unique for its inline design of water the inlet and outlet, the VVKB Titan-P4 Engine Preheater is a robust, durable and efficient engine heater. It is easy to install, with a rapid and fast engine heating capability, hence, no colder starting the engine. eaturing copper heating material, aluminum structure, inbuilt magnetic pump, and ceramic thermostat, the VVKB Titan-P4 Engine preheater ensures a perfect heating solution. This is a diesel engine warmer for seamless and instant engine starting during freezing cold weather. The design and performance of the VVKB Titan-P4 coolant heater for diesel engine ensure low soot emission and fuel consumption. It reduces vehicle engine wear due to cold starting during cold weather.