Fleece Performance 04.5-07 Dodge 5.9L Cummins Coolant Bypass Kit (06-07 Auto Trans)

The Fleece Performance 04.5-07 Dodge 5.9L Cummins Coolant Bypass Kit is a high-quality upgrade designed to improve coolant flow and temperature regulation across the engine. This complete kit features a secondary thermostat that operates based on temperature rather than pressure, effectively lowering coolant temperatures at the rear cylinders and ensuring uniform heat distribution. Constructed with braided hoses and AN O-ring fittings, it guarantees a leak-free installation. The kit also includes billet hose brackets for models from 2003 and newer, enhancing durability and fitment. By addressing common coolant flow issues, this bypass kit helps prevent excessive pressure buildup, freeze plug blowouts, and potential engine failures, thereby increasing the reliability and longevity of the Cummins platform.

Designed specifically for 2004.5 to 2007 Dodge Ram trucks equipped with the 5.9L Cummins engine and automatic transmissions, this bypass kit is a vital upgrade for improving cooling efficiency. It is suitable for use in various driving conditions, including daily driving, towing, and heavy-duty applications. The kit is a direct replacement that eliminates the factory transmission fluid heat exchanger, which is unnecessary in warm climates or high horsepower setups. Compatible with trucks from 2003 onward, it is especially beneficial for preventing catastrophic failures caused by coolant pressure issues. The installation involves replacing existing components with the included braided hoses, fittings, and brackets, making it an effective solution for enhancing engine cooling performance.