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Find Engine Cooling for your Ram 2500
Coolant Bypass Kit (03-05 5.9L RAM 2500)Find parts that fit my vehicle
Item HR61139
Our Price
$514.99
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$25.75 Available in AT Cash Rewards.
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Product Information
Features, Description, Q&A
Features
- Increased Coolant Flow Decreased Coolant Temperatures
- Secondary Thermostat Works Based On Temperature Instead Of Pressure
- Eliminates Excessive Pressure Buildup In Rear Of Engine Block
- Prevents Blow Out Of Freeze Plugs Externally Or Under Valve Covers
- Complete Kit With Braided Hose And AN O-Ring Fittings For Leak-Free Installation
- Includes Billet Hose Brackets For 2003+ Models
- Lowers Coolant Temperatures At Rear Cylinders
- Maintains Consistent Temperatures Across All Six Cylinders
- Replaces Factory Transmission Fluid Heat Exchanger In 2003-2007 Automatic Transmission Models
- Optional Heater Tube Available For 6.7L Models With Heat Exchanger
- CARB EO# D-834-9 Certified
- Fits 03-05 5.9L RAM 2500
Description
Enhanced Engine Cooling. The Coolant Bypass Kit improves coolant circulation specifically at the rear cylinders where flow is insufficient, helping maintain consistent temperatures and preventing pressure-related failures. It installs as a secondary thermostat system that activates based on temperature rather than pressure, ensuring reliable engine operation and protecting critical components like freeze plugs.
Construction and Appearance. This kit features premium stainless steel braided hoses paired with AN O-ring fittings for secure, leak-free connections. The kit includes billet aluminum hose brackets for added durability and proper fitment, offering a robust and long-lasting finish suited for demanding engine environments.
Installation. Installation requires moderate mechanical knowledge but does not necessitate drilling, as the kit is designed for direct replacement of the factory transmission fluid heat exchanger system on the specified models. The process is streamlined with all necessary hardware included.
Warranty. A limited parts warranty of one year covers the components of the kit.
Application. Designed specifically for 03-05 5.9L RAM 2500 vehicles with automatic transmissions, this kit replaces the factory transmission fluid heat exchanger, which is generally unnecessary for warm climates or high horsepower setups.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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Will It Fit My Ram 2500
- 5.9L I6 - 03, 04, 05
