Compatible with: This 3500043 heater is specifically designed for use with Ford, Mercury, Lincoln, International, Caterpillar, Detroit Diesel, Hino, Mack, Nissan models. Its compatibility with a range of models makes it a versatile solution for various diesel engines, providing an effective heating solution for different applications. Superior Performance: The 3500043 Engine Block Immersion Heater is designed to ensure easy and reliable engine starts in cold weather conditions. With a powerful 1000-watt output at 120 volts, this heater efficiently warms up the engine block, reducing oil viscosity and improving engine fluidity. This means fewer engine wear issues and faster starts even in freezing temperatures. Durable Construction: Crafted from high-grade ma.