2006-2007 Ram HD Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-0607)
SKU: 39215462243

2006-2007 Ram HD Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-0607)

Sale price$180.45 Regular price$200.50
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Description

2006-2007 Ram HD Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-0607)The Fleece Performance Cummins Coolant Bypass Kit 2003 2016 is built to OEM or better standards for diesel truck owners who want a no compromise upgrade. Engineered, manufactured, and supported by Fleece the diesel performance specialists. Features 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

The Fleece Performance Cummins Coolant Bypass Kit 2003-2016 is built to OEM-or-better standards for diesel truck owners who want a no-compromise upgrade. Engineered, manufactured, and supported by Fleece - the diesel performance specialists.

Features
  • 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.
Specifications
  • Fuel Type: Diesel
  • Engine: Cummins
  • Transmission: Automatic
  • Country of Origin: US
Manufacturer Description

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.

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39215462243

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Kareen
Boise, US
★★★★★ 5
Great Buy
Color: Black
Easy to assemble, very comfortable and stylish! Wheels dont roll too easily but thats an easy fix so overall very happy with this
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Reviewed in the United States on April 28, 2026
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Jazzy
Battle Creek, US
★★★★★ 5
Very comfortable
Color: Black
Very sturdy
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Reviewed in the United States on May 10, 2026
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Michele
Port Orchard, US
★★★★★ 5
Love this chair!!!
Color: Beige
This chair is soooo comfy and looks fabulous!!! It fits under my L-shaped desk perfectly even when I work in the corner section! It was super easy to put together as well!!!
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Reviewed in the United States on April 19, 2026
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Lisa
Louisville, US
★★★★★ 5
Comfort, support, style, and durability in this chair!
Color: Lightbrown, Color: Lightbrown
🥰 Very sturdy and durable for everyday use in the office or at home! Perfect for sitting, planking, criss-cross Apple sauce, or whatever seating position you wanna call it lol. 🛠️ Assembly; All the tools you need are provided in this kit! This took me all of 20 minutes to complete. Once you read the instructions, it’s pretty much placing screws in holes and done! No drilling needed! Cheers to the quick and easy process! Material is easy to clean, for keeping it in pristine condition! 🌟 Softness; Very nice and plush backing! Sides come down just as advertised but requires a bit of force to do so which is perfect, as they aren’t just plopping down because you press on the arms. I was concerned that would be an issue, and it’s nothing to worry about! Absolutely Love it, well designed for comfort / support, style, and adaptability! ✅ Stability; Chair wheels glide as expected on my carpeted floor. Pretty much with ease on the tile surface. The chair feels sturdy, even with the adjustable height and backspring, ultimately a relaxing desk chair. I appreciate there not a lot of wobble and no noise when moving around.. I’m not getting wild here but you could totally plank on the chair if you wanted and it still remain stable! 👍✨ Overall, I would definitely recommend! Storage side pockets are a plus!
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Reviewed in the United States on May 11, 2026
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Angeline
Battle Creek, US
★★★★★ 5
Nice office chair
Color: Beige
I recently purchased this chair for my home office setup. This chair is very comfortable and feels sturdy right out of the box. The seat cushion is thick and supportive, the back provides good support. I really like the flip-up armrests, which make it easy to slide the chair under my desk. Assembly was simple and didn't take long. Overall, it's a solid, well-built chair and a great value for the price.
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Reviewed in the United States on March 15, 2026

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