Fleece Performance fpeFPE-CLNTBYPS-CUMMINS-12V-SS - 1994-1998 12V Coolant Bypass Kit with Stainless Steel Braided Line

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure. Our coolant bypass kit adds a secondary thermostat, that unlike other brands, works based on temperature instead of excessive pressure. This solves the problem before pressure becomes an issue by ensuring consistent temperatures across all six cylinders. Benefits: Lowers coolant temperature at the rear cylinders Ensures consistent temperatures across all cylinders Prevents damaging coolant pressure build up Complete kit comes with braided hose and AN O-ring fittings to ensure a leak-free installation. Kits for MY 2003+ include billet hose brackets. Why do I need a Fleece Coolant Bypass? One of the biggest issues on the 5.9/6.7L Cummins is the coolant flow problem to the rear cylinders. This can cause catastrophic failure or blow outs of the freeze plugs in an over-temperature / over-pressure condition. The Fleece Coolant Bypass is one of the most important additions you make to improve the reliability and longevity of the Cummins platform. Application Notes: The 2003 - 2007 5.9L automatic transmission version will eliminate the factory transmission fluid heat exchanger. The heat exchanger is designed for use in cold climates to warm the transmission fluid with the engine coolant.

• Complete kit comes with braided hose and AN O-ring fittings to ensure a leak-free installation
• Ensures consistent temperatures across all cylinders
• Lowers coolant temperature at the rear cylinders
• Prevents damaging coolant pressure build up

The Fleece Performance 12V Coolant Bypass Kit is designed to address limited coolant flow at the rear cylinders of 5.9L Cummins engines. By adding a secondary thermostat that operates according to temperature, the kit helps lower coolant temperatures at the rear cylinders and maintain more consistent temperatures across all six cylinders.

Improved coolant management helps prevent damaging pressure buildup that can contribute to freeze plug failure. The complete kit includes a stainless steel braided hose and AN O-ring fittings for a leak-free installation. The kit is designed for 1994-1998 Dodge Ram 2500 and 3500 applications.

Key Features & Performance Benefits

• Temperature-based bypass operation: Helps address coolant flow concerns before excessive pressure becomes an issue.
• Balanced cylinder temperatures: Helps ensure more consistent coolant temperatures across all six cylinders.
• Rear-cylinder cooling: Helps lower coolant temperatures at the rear cylinders.
• Pressure management: Helps prevent damaging coolant pressure buildup.

Key Product Specifications & Technical Data

• Brand: Fleece Performance
• Part Number: fpeFPE-CLNTBYPS-CUMMINS-12V-SS
• Product Type: Coolant bypass kit
• Application: 12V Cummins
• Coolant flow design: Secondary thermostat
• Hose type: Stainless steel braided line
• Fitting type: AN O-ring fittings
• Emissions information: EPA compliant; CARB EO D-834-9

What's Included in the Box

• Coolant bypass kit
• Stainless steel braided hose
• AN O-ring fittings

Fitment

Fits 1994-1998 Dodge Ram 2500 and 1994-1998 Dodge Ram 3500 models.

Fitments:
1994 Dodge Ram 2500 Base
1994 Dodge Ram 3500 Base
1995 Dodge Ram 2500 Base
1995 Dodge Ram 3500 Base
1996 Dodge Ram 2500 Base
1996 Dodge Ram 3500 Base
1997 Dodge Ram 2500 Base
1997 Dodge Ram 3500 Base
1998 Dodge Ram 2500 Base
1998 Dodge Ram 3500 Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: Compliant
Carb Acknowledgement Required: false
Carb Eo Number: D-834-9
Regular Stock: t
Units Per Sku: 1