SKU: 65927392316

Fleece Performance FPE-CLNTBYPS-CUMMINS-VP VP Coolant Bypass Kit 1998.5-2002 Fleece Performance

Sale price$170.55 Regular price$189.50
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Description

Fleece Performance FPE-CLNTBYPS-CUMMINS-VP VP Coolant Bypass Kit 1998.5-2002 Fleece PerformanceIncreased 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 and up 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
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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: 65927392316

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Kindle Customer
Boise, US
★★★★★ 5
Keeps me regular and tastes great
Size: 81 Count (Pack of 1)
If you have trouble with staying regular and experiencing bloating, try these. They taste great and aid in digestion so you stay regular.
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Reviewed in the United States on June 2, 2026
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Trudy B
Charlottesville, US
★★★★★ 4
Works and taste great!
Size: 81 Count (Pack of 1)
I don't understand how some people are saying the taste of these are bad, I think their good. It took me about a week to set on a amount to take every day and decided on 3, with the help from certain fruits and vegetables I go every day now. Only reason I have it 4 stars and not 5 is bc of the gas it gives. After taking the gummies for about 3 hrs it's Alot of gas and man 🤢 bad!! But these gummies work and I'm not constipated anymore 😊
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Reviewed in the United States on January 25, 2026
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Sarah
Natrona Heights, US
★★★★★ 5
High quality fiber
Size: 81 Count (Pack of 1)
Excellent fiber. I take it twice a day so it does fast but it's the best fiber gummy I've used in terms of results. Some of the flavors aren't my favorite but they're all palatable. I like the gummies because otherwise I forget to take them. It's hard to remember to take them exactly between other meds so having these sit out helps.
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Reviewed in the United States on April 20, 2026
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JustAnotherOpinion
Natrona Heights, US
★★★★★ 5
Works like a charm
Size: 81 Count (Pack of 1)
My gastroenterologist told me to take Benefiber, specifically, every day. I looked at a bunch of different kinds within the brand, and settled on this one because it seemed to have fewer ingredients I didn’t want. I was pleasantly surprised to find out they actually taste like candy my kids liked when they were younger. Yes, they are gummy and stick together a bit, just like any other gummy product, but I had no problems getting them out of their container nor eating them, unlike some reviewers. I keep them in a cupboard in a spot where it’s always an average temp. You can chew these or just let them dissolve in your mouth, something I do most often. I take them one by one after a meal, letting them slowly melt as I do other things before brushing my teeth. The best thing? They actually work. You should definitely start small and slowly increase to what is prescribed to you. It makes the process easier and more pleasant. My digestion seems to be better, and I no longer have constipation, just normal, average, healthy stool. They are an expense at the amount my doctor has me on, but they’re worth every penny to not have the awful pain and nausea I had before I started taking them. Highly recommend.
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Reviewed in the United States on September 26, 2025
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Anon
Charlottesville, US
★★★★★ 5
Good stuff, tastes nice, does the job
Size: 81 Count (Pack of 1)
Same as in the retail stores, only it's actually available through Amazon. When we head to the stores to pick it up locally, there's a 90% chance it's out.
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Reviewed in the United States on April 16, 2026

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