SKU: 8260469700

Fleece Performance 07.5-12 Dodge/RAM 2500/3500 6.7L Cummins Coolant Bypass Kit

Sale price$221.12 Regular price$245.69
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Description

Fleece Performance 07.5-12 Dodge/RAM 2500/3500 6.7L Cummins Coolant Bypass KitThe Fleece Performance coolant bypass for the 2007. 5 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

The Fleece Performance coolant bypass for the 2007.5-2012 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. 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. Kit Includes: Rear coolant bypass thermostat housing Front coolant bypass thermostat housing New EGR cross-over tube gaskets Braided nylon coolant bypass hose with protective high temperature sleeve and AN fittings Exhaust back pressure sensor mounting block and back pressure sensor line Mounting hardware

Installation Instructions
Datasheet
Warranty

This Part Fits:

Year Make Model Submodel
2007-2010 Dodge Ram 2500 Laramie
2007-2010 Dodge Ram 2500 SLT
2007-2010 Dodge Ram 2500 ST
2008-2010 Dodge Ram 2500 SXT
2010 Dodge Ram 2500 TRX
2007-2010 Dodge Ram 3500 Laramie
2007-2010 Dodge Ram 3500 SLT
2007 Dodge Ram 3500 Sport
2007-2010 Dodge Ram 3500 ST
2008-2009 Dodge Ram 3500 SXT
2011-2012 Ram 2500 Laramie
2011-2012 Ram 2500 Laramie Longhorn
2012 Ram 2500 Outdoorsman
2011-2012 Ram 2500 SLT
2011-2012 Ram 2500 ST
2011-2012 Ram 3500 Laramie
2011-2012 Ram 3500 Laramie Longhorn
2011-2012 Ram 3500 SLT
2011-2012 Ram 3500 ST
Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 8260469700

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4.5 ★★★★★
Based on 18 reviews
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Nathalie M. Rosario Escobar
Carnegie, US
★★★★★ 5
Very good
Color: 01-black, Size: Small
It looks so good on my bf, he really like it. The quality is so perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
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Javian Campbell
Phoenix, US
★★★★★ 5
Good quality
These fit so well material is very tick nice for winter they have all different colors and it’s so comfy it’s really good value for your money for that level of thickness
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Reviewed in the United States on September 30, 2025
R
Verified Purchase
Ruby
Whiting, US
★★★★★ 5
Buy it
If you're looking for a comfortable thick and nice turtle neck this is the one. It's nice and form fitting nice weight to it to keep you warm. But not to thick that you cant just wear it on a regular sunny day if you wanted. The design pattern Is also very nice. Can dress it up or down. I bought the black and then immediately bought the rust orange color for my friend once he tried on mine he wanted one immediately so I gifted him one. He loves it. Definitely worth the buy. Excellent quality. I bought a Large 5"11 165lbs
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Reviewed in the United States on December 21, 2024
M
Verified Purchase
Make it Do!
Cuba, US
★★★★★ 5
What you see is what you get!
Color: 01-black, Size: Large
Fits great, fabric is amazing, turtle neck fits tight, and the quality is amazing!
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Reviewed in the United States on February 11, 2026
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Verified Purchase
SeanCeltiad
West Palm Beach, US
★★★★★ 4
A true turtleneck that retains a snug high neck.
Color: White, Size: X-Large
I've found this brand to have gotten better over the years as far as offering the American market what it needs in terms of realistic sizing. I only wish they'd realize that there are a lot of us who are long in the back and arms where my only choice is to go a size up and sacrifice a slim fit for sleeves that are long enough plus a back that doesn't go up past my waist just because I reach up for something, that and I like to be warm. So these are such nice quality turtlenecks that it's hard to complain about but maybe the company will read this. The snug neck stays up is plus number one since that's why I'm buying a full neck. They come with very nice weaves in the fabric, good enough for casual or formal wear. Finally the warmth you seek is there but I've worn them in what most would think isn't the right temp for a turtleneck. Also they have them in white! Yes, a lot of others just don't for reasons I can't fathom, and the pic you're seeing is accurate, these will form to your shape without being ridiculously thin material. Several washes later and they are as fine a garment as when I first wore them. I've only found one other brand that compares to these but it's much more expensive, COOFANDY is affordable in these times of expensive everything. Warm but also a lightweight shirt, I've gotten them really dirty with actual dirt and it washes out so well you'd never know it. Don't let my taking off one star stop you, try one yourself and you'll be coming back for more.
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Reviewed in the United States on July 30, 2025

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