SKU: 501952617

2007-2012 Ram HD Coolant Bypass Kit for 2007.5-2012 RAM with 6.7L (FPE-CLNTBYPS-CUMMINS-0712)

Sale price$261.00 Regular price$290.00
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

2007-2012 Ram HD Coolant Bypass Kit for 2007.5-2012 RAM with 6.7L (FPE-CLNTBYPS-CUMMINS-0712)The Fleece Performance Coolant Bypass Kit for 2007 2012 RAM with 6. 7L Cummins 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

The Fleece Performance Coolant Bypass Kit for 2007-2012 RAM with 6.7L Cummins 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.
  • 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
Specifications
  • Material: Braided Nylon
  • Finish: Bare
  • Engine: 6.7L Cummins
  • Country of Origin: US
  • Warranty: 1 Year Limited Warranty
Manufacturer Description

The Fleece Performance coolant bypass for the 2007-2012 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.

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: 501952617

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Donna G
Natrona Heights, US
★★★★★ 5
Suit.
Size: Large, Color: Sliver
Great well fitting suit.
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Reviewed in the United States on March 19, 2026
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Van
Draper, US
★★★★★ 1
Bad service
Size: XX-Large, Color: Green
Delivered the wrong size returned the suit then they delivered the pants minus the vest and jacket Not sure went wrong but was definitely not pleased 10 thumbs down 👎🏾 The tux is a very nice tux and color was on point trued it on was very comfortable feels cool enough to we’re in the summer great quality just sent the wrong size I also sent a email never got a response thanks for messing up my plans
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Reviewed in the United States on March 4, 2026
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Carla
Houston, US
★★★★★ 4
Traje
Size: XX-Large, Color: Dark Black
El traje se lo compré a mi hijo, dude en comprarlo por internet ya que el tiene 16 años es alto y de complexión robusto, el traje viene de tres piezas el bordado del saco es muy bonito la calidad de la tela es muy buena y resistente viene de acuerdo a la talla, no llega ni muy reducido la talla ni muy grande, solo el pantalón viene sin costura para que lo pongas al largo que tú quieres
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Reviewed in the United States on February 5, 2026
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Trasha
Carnegie, US
★★★★★ 5
Nice
Size: X-Large, Color: Royal Blue
Nice to size great fit very nice
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Reviewed in the United States on March 10, 2026
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Mark
Massapequa, US
★★★★★ 5
Suit looks great for fun formal events
Size: X-Large, Color: Green
The style and fit are great. I did notice a white thread in the shoulder poking out. I used a marker to darken it so it was not noticeable but other than that this suit really looks great. We have a music event in a couple of weeks that I am wearing this to and think it will delight as a sharp but different. I was also happy that it did not require alterations, sleeve length was on spot and everything fit great (XL) also this is a slim fit but I am not that slim and it fit nicely on me. As long as it doesn't disintegrate during the event I will consider this money well spent.
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Reviewed in the United States on January 13, 2025

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