Fuel heater kit specifically for use in conjunction with Fleece Performance fuel filter kits installed on the 2017-2024 Ford 6.7L Powerstroke. This kit includes the fuel heater and chassis harness to provide switched power to the heating element. Fuel heater specifications: Temperature switching points: ON: 28.4F +/-5.4F, OFF: 48.2F +/- 5.4F At typical fuel flow rates a temperature increase of between 4-8F will occur across the heating element Works with the following kits:FPE-FMC-UBFA-1724 Application Notes For cab and chassis applications an extension harness is required for use with this kit. Utilize Fleece Performance part number FPE-FH-FMC-1724-CC-EXT