{"product_id":"heavy-duty-coolant-preheater-for-diesel-and-gas-en","title":"Heavy Duty Coolant Preheater For Diesel And Gas Engines Construction Trucks And Marine Equipment 120 Volt Thermosiphon Block Heater Beats The Dead Of Winter Like A Champ No Pump Needed For Big Twenty Liter Motors","description":"\u003cdiv\u003e\n\u003cp\u003eHeavy Duty Coolant Block Heater For Winter Engine Starts\u003cbr\u003e\n✔️ 120V 2.5kW Thermosiphon Unit Warms 12 To 20L Engines\u003c\/p\u003e \u003cp\u003eThis single pack heavy duty coolant block heater uses a thermosiphon design to warm engine jackets without any extra pumps. You install this handy system straight into the cooling passages of big trucks, construction rigs, marine vessels, and stationary generators to fight frozen starters and thick oil during brutal winters.\u003c\/p\u003e \u003cp\u003e✅ 120 volt single phase operation runs on standard shop power\u003cbr\u003e\n✅ 2.5 kilowatt output cycles automatically between 100 and 120 degrees\u003cbr\u003e\n✅ Forced circulation pushes warm fluid evenly through twenty liter blocks\u003cbr\u003e\n✅ Swivel inlet and outlet ports snap into place with the mounting hardware\u003c\/p\u003e \u003cp\u003e💡 Why do marine and heavy equipment mechanics prefer forced circulation coolers over direct dipstick heaters?\u003cbr\u003e\nThe main difference comes down to how fast and evenly heat moves across the entire engine block. Standard dipstick units only warm a small pocket of antifreeze right around the heating element, which leaves cold spots near the cylinder walls and oil pan. Forced circulation systems work much better because they push warmed coolant straight into the water jackets and pull chilled fluid back down to the heater core. This continuous loop keeps everything at a steady temp so parts don't crack and fluids stay thin.\u003cbr\u003e\n- circulates hot fluid directly into the upper radiator hose connection\u003cbr\u003e\n- pulls cold jacket water straight back to the bottom of the unit\u003cbr\u003e\n- covers the full deck surface area for zero cold start delays\u003cbr\u003e\n- saves fuel by skipping long idle warmups before heavy loads hit\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49275529920747,"sku":"VXB097538922","price":1453.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/51Sj5YOl9PL_613a4b47-dc2d-4e72-aec5-584cb20fcf36.jpg?v=1787331745","url":"https:\/\/vxb.com\/products\/heavy-duty-coolant-preheater-for-diesel-and-gas-en","provider":"VXB Bearings","version":"1.0","type":"link"}