SKU: 57461052627

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

Sale price$175.39 Regular price$194.88
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

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

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.

Installation Instructions
Installation Instructions
Warranty
  • 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

This Part Fits:

Year Make Model Submodel
2006-2007 Dodge Ram 2500 Laramie
2006-2007 Dodge Ram 2500 SLT
2006-2007 Dodge Ram 2500 Sport
2006-2007 Dodge Ram 2500 ST
2006-2007 Dodge Ram 2500 TRX4
2006-2007 Dodge Ram 3500 Laramie
2006-2007 Dodge Ram 3500 SLT
2006-2007 Dodge Ram 3500 Sport
2006-2007 Dodge Ram 3500 ST
2007 Dodge Ram 3500 TRX4
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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]
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SKU: 57461052627

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Viral Fixes Daily
Draper, US
★★★★★ 5
Rugged Timberland Quality—The Best Bifold for "Double ID" Needs
Color: Black (Sportz)
Design & Capacity: I’ve been using this wallet for two weeks, and it’s a powerhouse for organization. The attached flip pocket is a game-changer for me because I have to carry both a driver's license and a work security badge. The two ID windows let me show both without digging through card slots. Genuine Leather: Looks and smells premium; will likely weather nicely with age. The Slimness Factor: Timberland calls this a "slimfold," and while it is thinner than a traditional trifold, the flip-out pocket does add some depth. With 6 cards and 5 bills, it measures about 0.75 inches thick. It fits comfortably in my back pocket, but it might be a bit much for a front-pocket-only user.
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Reviewed in the United States on February 5, 2026
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Aaron Montgomery
Birmingham, US
★★★★★ 5
Wanting a standard nice wallet. Get this
Color: Black, Color: Black
Your standard wallet. Nothing to complain about. Does what it’s supposed to and I have no complaints. The fit is amazing. Holds at least 17 20 dollar bills and over. Durability is also amazing to say the least. Doesn’t rip at all, with a lot of money in it. Its thickness ties in with how much money you can fit in it, so I won’t go into that category. Overall what you see is what you get. A standard, nice, durable wallet that sticks into your pants.
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Reviewed in the United States on March 26, 2026
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Mahmut Cavur
Phoenix, US
★★★★★ 4
High Quality but with tiny holes
Color: Navy (Blix)
There were two very tine holes on top of the wallet unfortunately. Otherwise the product nice snd high quality. I like it a lot but unfortunately I returned it back. That is the reason I gave 4 starts.
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Reviewed in the United States on June 27, 2025
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Doug Maller
Fort Morgan, US
★★★★★ 5
Timberland quality
Color: Black (Sportz)
Always loved Timberland products never thought of ordering one as a Wallet. Glad you have them out there. I bought one for my son and he liked it so much. I got one for myself. Thank you very much.
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Reviewed in the United States on April 24, 2026
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Sandi Claus Too
Houston, US
★★★★★ 5
Great value for the style and material
Color: Brown
Purchased as a replacement for my son's previous wallet. He found this same wallet on Timberland's website at a much higher price. He received it and has used it ever since it was delivered. He was very pleased and still is with how soft the wallet is. He likes the style a lot as well.
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Reviewed in the United States on April 19, 2026

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