Fleece Performance fpeFPE-CLNTBYPS-CUMMINS-0607 04.5-07 Dodge 5.9L Cummins Coolant Bypass Kit - 06-07 Automatic Transmission

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. The '03-'07 5.9L automatic transmission version will eliminate the factory transmission fluid heat exchanger. The heat exchanger is not a fluid cooler, it was designed for use in cold climates to warm the transmission fluid with the engine coolant. It is not necessary for use in warm climates or high horsepower applications, nor does it detrimentally affect the trucks performance when removed. All 07-13 6.7 trucks, both automatic and manual equipped transmissions, do not have a transmission fluid heat exchanger. Recommended Cross Sell Skus - FPE-DPK-59-0307/FPE-351-0407

• 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

Brief Description: The Fleece Performance Coolant Bypass Kit is designed for 2004.5-2007 Dodge trucks equipped with the 5.9L Cummins and 2006-2007 automatic transmissions. The kit adds a secondary, temperature-operated thermostat to improve coolant flow to the rear cylinders, helping maintain more consistent temperatures across all six cylinders.

Key Features & Performance Benefits:

• Improves coolant flow to the rear cylinders, where the 5.9L Cummins can experience higher coolant temperatures.
• Lowers rear-cylinder coolant temperatures for more consistent engine operation.
• Uses temperature-based bypass operation to help address coolant pressure buildup before it becomes an issue.
• Includes braided hose and AN O-ring fittings to support a leak-free installation.

Key Product Specifications & Technical Data:

• Brand: Fleece Performance
• Part Number: fpeFPE-CLNTBYPS-CUMMINS-0607
• Product Type: Coolant bypass kit
• Application: Dodge 5.9L Cummins
• Model Years: 2004.5-2007
• Transmission Application: 2006-2007 automatic transmission
• Thermostat Operation: Temperature-based secondary thermostat
• Fittings: AN O-ring fittings

What's Included in the Box: Complete coolant bypass kit with braided hose and AN O-ring fittings. Kits for model year 2003 and newer include billet hose brackets.

Fitment: Fits 2007 Dodge Ram 3500; 2007 Dodge Ram 2500; and 2006 Dodge Ram 2500 applications listed by the manufacturer. On 2003-2007 5.9L automatic-transmission applications, installation eliminates the factory transmission fluid heat exchanger. The manufacturer states that 2007-2013 6.7L trucks with automatic or manual transmissions do not have a transmission fluid heat exchanger.

Fitments:
2006 Dodge Ram 2500 Laramie
2006 Dodge Ram 2500 SLT
2006 Dodge Ram 2500 Sport
2006 Dodge Ram 2500 ST
2006 Dodge Ram 2500 TRX4
2006 Dodge Ram 3500 Laramie
2006 Dodge Ram 3500 SLT
2006 Dodge Ram 3500 Sport
2006 Dodge Ram 3500 ST
2007 Dodge Ram 2500 Laramie
2007 Dodge Ram 2500 SLT
2007 Dodge Ram 2500 Sport
2007 Dodge Ram 2500 ST
2007 Dodge Ram 2500 TRX4
2007 Dodge Ram 3500 Laramie
2007 Dodge Ram 3500 SLT
2007 Dodge Ram 3500 Sport
2007 Dodge Ram 3500 ST
2007 Dodge Ram 3500 TRX4

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