Fleece Performance 98.5-02 Dodge 5.9L Cummins VP Coolant Bypass Kit

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-HX35-63-FMW/FPE-34754

• 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 Coolant Bypass Kit for 98.5-02 Dodge Ram 2500 and 3500 with 5.9L Cummins engines enhances coolant flow and temperature regulation across all cylinders. This kit addresses a common issue in these engines where the rear cylinders experience reduced coolant flow, leading to elevated temperatures that can cause pressure buildup and potential failure of freeze plugs. By adding a secondary thermostat that operates based on temperature rather than pressure, this kit ensures consistent coolant temperatures, preventing overheating and extending engine life. The complete installation includes braided hoses and AN O-ring fittings to guarantee a leak-free connection, with billet hose brackets included for models from 2003 onwards for added durability and ease of installation. Proper coolant management is crucial for maintaining engine performance and preventing costly failures, especially in high-demand applications or extreme climates. This bypass kit is an essential upgrade for enthusiasts and professionals aiming to improve the longevity and reliability of their Cummins-powered trucks. It also removes the factory transmission fluid heat exchanger in 2003-2007 automatic transmission models, which is unnecessary outside cold climate conditions, without impacting vehicle performance. The kit's design ensures optimal coolant flow, reduces rear cylinder temperatures, and prevents damaging pressure buildup, making it a vital component for maintaining engine health under demanding conditions.

Features:

• Enhanced coolant flow to rear cylinders for improved engine temperature regulation

• Secondary thermostat operates based on temperature to prevent overheating

• Includes braided hose and AN O-ring fittings for leak-proof installation

• Billet hose brackets included for MY 2003+ models for secure mounting

• Reduces coolant temperature at rear cylinders to prevent failures

• Prevents excessive pressure buildup in the cooling system

• Designed to improve engine longevity and reliability in Dodge Ram 2500 and 3500 with 5.9L Cummins engines

• Removes factory transmission heat exchanger in 2003-2007 models, suitable for warm climates and high horsepower applications

Fitment:
1998 Dodge Ram 2500 Base
1998 Dodge Ram 3500 Base
1999 Dodge Ram 2500 Base
1999 Dodge Ram 3500 Base
2000 Dodge Ram 2500 Base
2000 Dodge Ram 3500 Base
2001 Dodge Ram 2500 Base
2001 Dodge Ram 3500 Base
2002 Dodge Ram 2500 Base
2002 Dodge Ram 3500 Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1