SKU: 11679169154

1994-1998 Ram HD 12V Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-12V)

Sale price$247.29 Regular price$274.77
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Description

1994-1998 Ram HD 12V Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-12V)The Fleece Performance 12V Coolant Bypass Kit 1994 1998 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

The Fleece Performance 12V Coolant Bypass Kit 1994-1998 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.
Specifications
  • Fuel Type: Diesel
  • Engine: Cummins
  • 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.

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.

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: 11679169154

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Romeo
West Palm Beach, US
★★★★★ 5
Good shoes for a nice price.
Just straight up good shoes. They look good, they're comfortable, really ain't nothing wrong with em.
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Reviewed in the United States on May 16, 2026
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Josh
Lexington, US
★★★★★ 5
The daily shoe.
Size: 13, Color: Black/Anthracite
Great daily running shoe! It took approximately 3 weeks to fully break in, but now they feel incredibly comfortable. My feet stay nice and cool throughout the day. I went on a light waterfall hike and the water resistance held up fine. The shoes look great; in direct sunlight they look a little dark blue, but they are still perfect for work.
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Reviewed in the United States on May 16, 2026
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David Todd
Omaha, US
★★★★★ 5
Great pair of shoes
Size: 11 Wide, Color: Black/Anthracite
Great pair of shoes feel great and look great and they are very light for a pair of shoes
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Reviewed in the United States on May 19, 2026
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Irish711
Whiting, US
★★★★★ 5
Nice fit, classy looking sweater
Size: Medium, Color: Navy Blue
I bought this for my husband because now that he is retired and lost weight, he needs casual clothing to go out and socialize. This sweater is both classic and sporty, working well in a golf course or a night out. It is soft, washes well and fit perfectly. I am ordering more in different styles and colors. It is light weight and not bulky.
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Reviewed in the United States on October 23, 2025
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Bozeman, US
★★★★★ 5
Nice sweater
I wasn't sure what to think of this sweater. It looked nice, but I don't know. Then I wore it out one night. I totally got laid that night. Highly recommend.
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Reviewed in the United States on May 25, 2026

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