It may not cover all options for a specific make / model listed. The PSM 3500077 is a heater with a power of 1500 watts specifically designed to function with a voltage of 120 volts. It operates using electricity and can... Phillips Zerostart Heaters 3500077 Eng Htr,1500w 120v This cord set ensures a dependable connection, allowing the engine heater to function effectively and maintain the temperature for smoother engine starts and enhanced performance. ZEROSTART 8609845: 150W Eng Heater Point element 2 o’clock. Zerostart Oil Pan Heater - 150W 120V, 22Mm Thread, 7in. 178Mm Long Stainless Stl 3500047 Engine Coolant Heater Phillips & Temro Zerostart Engine Heater | 350-0075 U2013 Peterbilt Parts Block Heater Its purpose is to connect the engine heater to a power source, enabling heating for the engine during harsh weather conditions.