SKU: 19662357328

Fleece Performance FPE-CLNTBYPS-CUMMINS-1318 Coolant Bypass Kit for 2013-2018 RAM with 6.7L Cummins Fleece Performance

Sale price$171.00 Regular price$190.00
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

Fleece Performance FPE-CLNTBYPS-CUMMINS-1318 Coolant Bypass Kit for 2013-2018 RAM with 6.7L Cummins Fleece PerformanceThe Fleece Performance coolant bypass for the 2013 2018 RAM with 6. 7L Cummins seamlessly integrates with your truck for an OE fit and finish. Features: 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

The Fleece Performance coolant bypass for the 2013-2018 RAM with 6.7L Cummins seamlessly integrates with your truck for an OE fit-and-finish.
Features:

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 a Fleece 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.
Kit Includes:

  • Rear coolant bypass thermostat housing
  • Front coolant bypass thermostat housing
  • New EGR cross-over tube gaskets
  • Black braided nylon coolant bypass hose with protective high temperature sleeve and AN fittings
  • Mounting hardware
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: 19662357328

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Verified Purchase
Foreverfit
Battle Creek, US
★★★★★ 5
fits my S1 perfectly
Color: Omni S1 Pro 17P
works well with my vaccum
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2025
L
Verified Purchase
lilas bouskila
Charlottesville, US
★★★★★ 3
Not a good fit with the eufy
Color: Omni S1 Pro 17P
It’s a good value for all these pieces, but the dust bag does not fit well with the Juvi. I haven’t tried the other piece pieces. I will return it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2025
V
Verified Purchase
Vinny
Boise, US
★★★★★ 4
Mostly fine replacement parts
Color: Omni S1 Pro 17P
I can't get either of the rolling mops to snap into place no matter what i do, might have to tack on something so they stay in place. The main brush was a fine fit, but the side brushes seems more flat than the stock ones and it makes some weird noise now, they did snap on though. Filter was fine though and I haven't tried a dust bag yet, still good value even if I can't get the mops to fit for me!
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Reviewed in the United States on December 6, 2025
J
Verified Purchase
JASON D LONG
Alexandria, US
★★★★★ 5
Good quality overall
Color: Omni S1 Pro 17P
Good kit I ordered for my S1 Pro. All of the accessories seem to be of good quality and have held up well over time. Order without hesitation.
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Reviewed in the United States on May 4, 2026
M
Verified Purchase
Marco Carranza
Battle Creek, US
★★★★★ 5
It works
Color: Omni S1 Pro 17P
Is compatible with my vacuum and had no issues
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 24, 2025

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