2019-2022 RAM 6.7L CUMMINS COOLANT BYPASS KIT

Coolant Bypass Kit | Ram 6.7L Cummins

Protect your 6.7L Cummins from injector cup erosion and premature cylinder head failures with the Fleece Performance Coolant Bypass Kit. Designed for Ram 2500/3500 trucks equipped with the 6.7L Cummins, this kit corrects the factory coolant flow restriction in the cylinder head — keeping coolant circulating continuously around the injector cups and preventing the localized overheating that leads to cup failure and coolant contamination of the fuel system.

Why the 6.7L Cummins Needs a Coolant Bypass Kit

Like its 5.9L predecessor, the 6.7L Cummins suffers from restricted coolant flow through the cylinder head under certain operating conditions. Stagnant coolant around the injector cups accelerates corrosion and erosion of the cup sealing surface. Once a cup fails, coolant enters the combustion chamber — causing white smoke, misfires, hydrolocking, and expensive head repairs. The Fleece coolant bypass kit is the most effective preventive measure available to 6.7L Cummins owners.

Features

• Corrects factory coolant flow restriction in the 6.7L cylinder head
• Keeps coolant circulating around injector cups to prevent hot spots
• Dramatically reduces injector cup erosion and failure risk
• Prevents coolant intrusion into the combustion chamber and fuel system
• Complete kit with all necessary hardware for installation
• Engineered specifically for the Ram 6.7L Cummins application
• From Fleece Performance — a trusted name in Cummins reliability upgrades

Fitment

• Ram 2500/3500 6.7L Cummins (see SKU FPE-CLNTBYPS-CUMMINS-19 for specific year applicability)

Don’t wait for the white smoke. The Fleece coolant bypass kit is one of the best investments you can make in the long-term health of your 6.7L Cummins.