Coolant Bypass for 5.9L 12V Cummins (1994-1998) w/ Stainless Steel Braided Line Fleece Performance

Keep the rear cylinders cool

On the 5.9L Cummins, the cylinders at the back of the block are short on coolant flow and run the hottest. The extra heat can build pressure at the rear of the block and push out freeze plugs, including the small ones under the valve cover.

The Fleece Coolant Bypass adds a second thermostat that works on temperature, not pressure, so all six cylinders stay at an even temperature before pressure ever becomes a problem.

The kit comes with stainless steel braided line and AN O-ring fittings for a leak-free install.

Who it's for

Owners of 1994-1998 Dodge Ram 2500/3500 5.9L 12-valve Cummins trucks who want better cooling reliability.

Key specs (per Fleece)

What's included

• Coolant Bypass thermostat assembly
• Stainless steel braided line with AN O-ring fittings

Fitment notes

• Fits 1994-1998 Dodge Ram 2500/3500 with the 5.9L 12-valve Cummins (per Fleece).
• California: Fleece lists CARB EO D-834-9 for this part.

Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.