Upgrade your Fleece Performance fuel filter base, P/N FPE-CUMM-UBFA-1324, with our plug and play fuel heater. This fuel heater is specifically intended for model years 2013-2018. For model years 2019-2024, use P/N FPE-FH-CUMM-1924. 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 that have a heater provision: FPE-CUMM-UBFA-1324 APPLICATION NOTES For use only with MY 2013-2028 trucks equipped with Fleece Performance fuel filter base FPE-CUMM-UBFA-1324