Fleece Coolant Bypass Kit w/Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-0607SS) for 2006-2007 Cummins 5.9L
$376.95
The Fleece Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-0607SS) is a performance upgrade for 2006-2007 Dodge Ram trucks with 5.9L Cummins engines. It improves engine cooling by rerouting coolant from the rear to the front of the engine, addressing uneven temperature distribution that can cause damage. Featuring a durable stainless steel braided line, the kit enhances thermal efficiency and durability, making it ideal for high-performance or modified engines and helping extend engine life and reliability.
The Fleece Coolant Bypass Kit with Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-0607SS) is a high-performance upgrade designed specifically for 2006-2007 Dodge Ram trucks equipped with the 5.9L Cummins engine. This kit addresses a common issue with uneven coolant flow in the rear cylinders, which can lead to elevated operating temperatures and potential engine damage over time. By rerouting coolant from the rear of the engine back to the front through a durable, stainless steel braided line, it promotes balanced temperature control and improved thermal efficiency. The robust construction ensures long-lasting durability and resistance to abrasion, heat, and pressure. Ideal for modified or high-performance applications, this coolant bypass kit is a smart investment for Cummins owners seeking to extend engine life and enhance reliability.
| Weight | 8.0 lbs |
|---|---|
| Dimensions | 16.0 × 12.0 × 3.0 in |
Fitment
- 2006 Dodge Ram 2500/3500 5.9L 24V Cummins
- 2007 Dodge Ram 2500/3500 5.9L 24V Cummins
Features
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.
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Why do I need a Fleece Performance 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 Performance Coolant Bypass is one of the most important additions you make to improve the reliability and longevity of the Cummins platform.Â
   
*US Trademark Reg. No. 6099979, 6099980, 6099981 and 7659022.
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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. It is not necessary for use in warm climates or high horsepower applications, nor does it detrimentally affect the trucks performance when removed.
For model years 2007 – 2018 6.7L trucks, including both automatic and manual equipped transmissions, factory installed transmission fluid heat exchangers are uncommon. For customers with a 6.7L that has a heat exchanger, a heater tube can be purchased at your local Chrysler Dealership [PN:68048997AA] to complete the installation.
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