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SKU #: FPE-CLNTBYPS-CUMMINS-VP Fleece Performance Coolant Bypass Kit 98.5-02 5.9L Dodge Cummins 24 Valve

Purchase Fleece Performance Coolant Bypass Kit 98.5-02 5.9L Dodge Cummins 24 Valve
    • 1998.5-2002 5.9L Dodge Cummins 24 Valve

Description

Help eliminate the possibility of scored rear cylinders and blown freeze plugs with this Coolant Bypass Kit from Fleece! Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on ... read more

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Help eliminate the possibility of scored rear cylinders and blown freeze plugs with this Coolant Bypass Kit from Fleece!

Increased Coolant Flow, Decreased Coolant Temperatures
The rear cylinders on the 5.9 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. Fleece's 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 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.

Specifications

  • SkuFPE-CLNTBYPS-CUMMINS-VP
  • ManufacturerFleece Performance Engineering
  • MPNFPE-CLNTBYPS-CUMMINS-VP
FEATURES & 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.

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Rate Fleece Performance Coolant Bypass Kit 98.5-02 5.9L Dodge Cummins 24 Valve

Reviews may be edited for spelling or grammar inaccuracies and those containing profanity will be removed.

R
Verified Buyer
Freeze plug is the hardest part
My freeze plug ended up getting pushed into the water jacket. I pulled the motor and had it fished out in no time. Cleaned up the area really well prior to install. Installation was even easier since I was sitting on the transmission. It's a shame to hide such a beautiful part at the back of the motor.
Store Reply
Truly is a shame that no one will ever really see that masterpiece. Funny how that works. Glad to hear the install went well and that your 5.9 will be running much cooler. Thank you for your order and your review! -Ben
E
Verified Buyer
Cool
Cures a problem.
A
I had a mechanic install.. This site has it t...
I had a mechanic install.. This site has it the cheapest priced aswell
D
I would buy this product again
Everything installed fairly easily , except for the left side bolt. I had to install and tighten from under the truck with a long extension. I have this product 4 stars because it came with hose clamps and Allen head bolts I couldn't use , otherwise it outstanding . Temp while running down the highway has dropped a few degrees , at idle there is a noticeable drop
Store Reply
Thank you for the review and glad the kit is working well for you. As far as the shipping issue, we will have someone contact you. From what we can see on this end looking at the tracking number, it was shipped out the day after the order (it was just at our shipping cut off time) and was shipped via 2nd Day Air and delivered two days after it was shipped. We apologize for any issues.
D
Update
After a phone call from customer service and a careful investigation , I discovered that this item did ship and arrive on time . The joker's at work thought it would be fun to hide it from me. I retract what I said about this company in the previous review and apologize. Diesel Power Products have been awesome everytime I have dealt with them and will continue to trade with this company. Dennis
Store Reply
Thanks so much for the review and update. Make sure your coworkers know they should never mess with a man's truck parts!
B
Verified Buyer
Fleece coolant bypass
I had already blown the rear freeze plug and only needed to clean the surface area to install the kit. The rear thermostat fit perfectly and the hose running to the front was the perfect length. Easy 1 hour or less install. It takes a bit of getting used to both thermostats opening at different times but it works very well and helps keep the engine just a bit cooler. The real test will come in the summer.
Store Reply
Thank you for the review. Fleece really did their homework with this kit. Simple install coupled with a solid fix to a real issue.

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Fleece Performance Coolant Bypass Kit 98.5-02 5.9L Dodge Cummins 24 Valve

Fleece Performance Coolant Bypass Kit 98.5-02 5.9L Dodge Cummins 24 Valve

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