Fleece Coolant Bypass Kit for 2019-2024 Ram 6.7L Cummins
FPEFPE-CLNTBYPS-CUMMINS-19Bought a 2019 or newer Ram with the 6.7L? It has the same hot rear cylinder issue as the older Cummins, and Fleece has a bypass built for it.
The rear cylinders on the 6.7L get less coolant flow and run the hottest. The pressure that builds can blow out freeze plugs on the block or under the valve cover. Fleece's patent pending design adds a secondary thermostat that, unlike other brands, works on temperature, not excessive pressure, keeping all six cylinders even. It integrates for an OE fit-and-finish.
Benefits
- Lowers coolant temperature at the rear cylinders
- Ensures consistent temperatures across all six cylinders
- Prevents damaging coolant pressure build up
- Secondary thermostat that works on temperature, not excessive pressure
- Braided hose and AN O-ring fittings for a leak-free install
Specs
- Status: Patent pending
- Engine: 6.7L Cummins
- Part number: FPE-CLNTBYPS-CUMMINS-19
- CARB EO: D-834-5
Why we run it
The newer 6.7L still has the same rear cylinder cooling problem, and this kit is the fix. Fleece's temperature based secondary thermostat evens out coolant temps across all six cylinders and keeps pressure from building, with an OE style fit and finish and braided hose. PPEI recommends this bypass on the newer 6.7L, and we run Fleece bypass kits on our own trucks.
Fitment
Fleece lists this kit for 2019-2024 Ram 2500/3500 6.7L 24V Cummins.
- Ram 2500: 2019-2022 Big Horn, Laramie, Limited, Lone Star, Tradesman; 2019-2021 Laramie Longhorn; 2021-2022 Limited Longhorn
- Ram 3500: 2019-2022 Big Horn, Laramie, Limited, Lone Star, SLT, Tradesman; 2019-2020 Laramie Longhorn; 2021-2022 Limited Longhorn
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WHO IS THE TUNER/CALIBRATOR
PPEI, also known as Power Performance Enterprises, Inc., is led by the business owner and lead calibrator/tuner Kory Willis. PPEI began calibrating/tuning back in 2008, specializing in Diesel Performance but has since expanded into the Gas and Powersports industries. Kory and the team at PPEI have set many world records along with continuing many industry “firsts”. We take pride in knowing that Kory not only prides his work, but also thoroughly enjoys setting expectations high for our team so our customers can have the best products available in the world.