SKU: 60947046152

2003-2007 Ram HD Coolant Bypass Kit Manual Transmission w/ Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-MAN-SS)

Sale price$180.45 Regular price$200.50
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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

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Description

2003-2007 Ram HD Coolant Bypass Kit Manual Transmission w/ Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-MAN-SS)The Fleece Performance Cummins Coolant Bypass Kit 03 07 Manual Transmission w Stainless Steel Braided Line 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

The Fleece Performance Cummins Coolant Bypass Kit 03-07 Manual Transmission w/ Stainless Steel Braided Line 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 and up include billet hose brackets.
  • 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.
Specifications
  • Fuel Type: Diesel
  • Engine: 5.9L / 6.7L Cummins
  • Transmission: Manual
  • 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.
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.
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: 60947046152

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4.7 ★★★★★
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For Simplicity’s Sake
Battle Creek, US
★★★★★ 5
Quality, Cute, Fun Toys for My Medium Sized Dogs
My dogs were very happy with these as Christmas gifts, and I’m very happy that I do not have worry about my dogs ingesting a bunch of stuffing or that I have to pick up stuffing all over the house. These are very cute, are of good quality, and are big enough for medium sized dogs to play with.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
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Verified Purchase
Old but not too old.
Cuba, US
★★★★★ 3
Pretty good. Maybe better for smaller less vilolent doggies.
Liked the colors and the concept. Did take care of the "stuffie pollution problem". Seems durable enough for my dogs to play "tug of war" with. I do think however the squeakers need more protection as they were toast in mere minutes it seemed. I think I will look for some made with canvas like material on outside to see if that will make them last longer. Special thanks to my "Testers" Luna and Chunky! Cheers!
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Reviewed in the United States on October 12, 2025
D
Verified Purchase
Dr. Angel R. Martinez
Lowell, US
★★★★★ 4
Toy monster
My dog loved them, but did not live long. My 33lb dog is a killer with dog toys and this was like candy for her.
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Reviewed in the United States on October 26, 2025
D
Verified Purchase
Dani
Birmingham, US
★★★★★ 5
Good Deal
Price is right, no stuffing to pick up, dogs love them and just throw them out after they’re dirty and your dog got the squeaker out.
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Reviewed in the United States on October 3, 2025
S
Verified Purchase
Stacie☺
Houston, US
★★★★★ 5
Fun solid ball
Style: Recharges, Size: Medium, Style: Recharges, Size: Medium
Great squeaky balls! Glow doesn’t last for a long time, but they go far in the Chuck it. Solid ball, my dog doesn’t seem to destroy them.
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Reviewed in the United States on February 11, 2026

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