What does a liquid heat generator actually do?

A liquid heat generator uses your diesel's coolant to manage exhaust temperatures. It pulls heat from your exhaust gas and transfers it to your cooling system, warming coolant on cold starts and maintaining steady operating temps during regeneration cycles. This keeps your DPF and SCR systems functioning optimally.

Do I need a liquid heat generator if my truck is deleted?

If you've removed your DPF and EGR (exhaust gas recirculation) system, a traditional liquid heat generator becomes unnecessary. However, some builders still run them for overall thermal management and engine longevity. Check with your tuner—they'll know what your specific setup needs.

Will this work with my 2019 Powerstroke or Cummins?

Yes, but verify your exact year and engine size first. Our 2017-2023 units cover that range, but there are differences between early and late models. Double-check your VIN or consult your build sheet. A wrong-year part won't fit correctly and creates cooling problems.

How hard is it to install a liquid heat generator?

Installation difficulty depends on your truck. Some units swap in as a direct replacement; others require coolant line modifications and repositioning. If you're comfortable working with hoses and basic plumbing, you can DIY it. Otherwise, have a diesel shop handle it—cooling system errors are expensive to fix.

Can a liquid heat generator improve fuel economy?

Indirectly, yes. By maintaining stable coolant temperatures, your engine runs more efficiently and your computer adjusts fuel maps more precisely. You won't see huge gains, but paired with other system upgrades, every bit counts—especially on long highway hauls.

What's the difference between liquid heat generators for different diesel engines?

The core function is the same, but design, dimensions, and coolant line routing differ significantly between Powerstroke, Cummins, and Duramax platforms. They're engineered for each engine's unique cooling layout. Never swap between brands—you'll create air pockets and overheating issues.

How long do liquid heat generators last?

Most are built to last the life of your truck if maintained properly. Flush your coolant on schedule, keep your radiator and hoses clean, and monitor for leaks. Internal corrosion or seal failure is rare but happens if coolant degrades. Replace if you notice coolant loss or overheating.