SKU: 82892024656

Fleece Performance 2019+ Ram 2500/3500 Cummins 6.7L Coolant Bypass Kit

Sale price$175.83 Regular price$195.37
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

Fleece Performance 2019+ Ram 2500/3500 Cummins 6.7L Coolant Bypass KitAll new Fleece Performance coolant bypass for the 2019+ RAM with 6. 7L Cummins! Our patent pending design seamlessly integrates with your truck for an OE fit and finish. Increased Coolant Flow, Decreased Coolant Temperatures: The rear cylinders on the 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

All new Fleece Performance coolant bypass for the 2019+ RAM with 6.7L Cummins! Our patent pending design seamlessly integrates with your truck for an OE fit-and-finish. Increased Coolant Flow, Decreased Coolant Temperatures: The rear cylinders on the 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. Why do I need aFleece Coolant Bypass? One of the biggest issues on the 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.

Installation Instructions
Datasheet
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
2019-2022 Ram 2500 Big Horn
2019-2022 Ram 2500 Laramie
2019-2021 Ram 2500 Laramie Longhorn
2019-2022 Ram 2500 Limited
2021-2022 Ram 2500 Limited Longhorn
2019-2022 Ram 2500 Lone Star
2019-2022 Ram 2500 Tradesman
2019-2022 Ram 3500 Big Horn
2019-2022 Ram 3500 Laramie
2019-2020 Ram 3500 Laramie Longhorn
2019-2022 Ram 3500 Limited
2021-2022 Ram 3500 Limited Longhorn
2019-2022 Ram 3500 Lone Star
2019-2022 Ram 3500 SLT
2019-2022 Ram 3500 Tradesman
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: 82892024656

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Product Reviews
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Verified Purchase
Road Warrior Ray
Lexington, US
★★★★★ 4
Excellent 11 hole jig
Size: 11 Holes
This jig worked excellently. It doesn't have any instructions, so I watched the video of it. I set it up the way the video showed, and I got decent results. Deducted a star since no instructions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
J
Verified Purchase
Janis E White
Belleville, US
★★★★★ 5
Perfect hole placement
Size: 11 Holes
Worked exactly as described.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 24, 2025
J
Verified Purchase
Jeffrey A Bradley
Massapequa, US
★★★★★ 5
Good jig
Size: 11 Holes
The jig itself is great. The markings make it easy to be consistent; the design is well thought-out; and the build quality is good. I would recommend replacing the drill bit, though. A nice brad point will serve you better.
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Reviewed in the United States on December 5, 2025
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Verified Purchase
WhiteTiger96
Port Orchard, US
★★★★★ 5
Great
Size: 11 Holes
Worked better than expected
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Reviewed in the United States on March 10, 2026
M
Verified Purchase
Mark Danielson
Phoenix, US
★★★★★ 2
In the trash after a single use
Size: 11 Holes
For context, I’m a seasoned woodworker and always evaluate tools with the price in mind. This seemed like a good deal and in fact when it arrived, it looked and felt like reasonable quality for the price. Unhappily, the first bookshelf I drilled was off from side to side by almost 3 mm which would make a really wobbly shelf situation. It took a while to figure out what was happening, but I finally realized the metal bushings that guide the drill bit are so soft that they cored out from contact with the bit even though I was cautious to not put the bit in under power but to get it in the bushing and aligned before drilling. Still, the bushings started angling immediately. So when you then use those angled bushings to set the pin for the next series, it’s off by a little bit. Then the next is off by a little more…. By the time I drilled holes up and down a 6’ high shelf, the bushings were out of square, the holes were 3 mm out of alignment, and the shelf sides were firewood. Back to the drawing board and this goes in the trash, I’m afraid.
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Reviewed in the United States on May 3, 2026

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