Keeping your 2019–2023 Ram 6.7L Cummins running at a safe temperature is just as important as any power upgrade you make. A cooling system that's working the way it should protects your engine from heat-related stress, especially when you're towing heavy loads, running in hot climates, or pushing more power than stock. Our selection of radiators, fan clutches, and water pumps is built to keep coolant moving efficiently and your engine operating in its ideal range, no matter how hard you're working it.
Upgrade your 2019-2023 Ram 6.7L Cummins cooling system with proven components from Fleece Performance and BulletProof Diesel. The Fleece Performance Coolant Bypass Kit helps improve coolant circulation through the rear cylinders of the engine, reducing localized hot spots and promoting more consistent engine temperatures under heavy towing, performance driving, and demanding workloads. Paired with a BulletProof Diesel Water Pump, which is engineered for improved durability and reliable coolant flow compared to aging factory components, these upgrades help support long-term engine reliability and cooling efficiency. Whether you're maintaining a stock work truck or building a higher horsepower Cummins, a coolant bypass kit and upgraded water pump are smart investments for keeping engine temperatures under control and protecting critical components from heat-related stress.
Every cooling system component we offer comes from brands with a track record in the diesel performance space, so you can upgrade knowing the parts are built to last. Whether you're simply replacing a worn part or building out your Cummins to handle more demanding conditions, our cooling system lineup is here to help your Ram stay dependable on the road and on the job.
