Enjoy free shipping on all orders over $100 *

SKU #: FPE-CLNTBYPS-CUMMINS-0305 Fleece Performance Coolant Bypass Kit 03-05 5.9L Auto Trans Cummins

$305.15 $359.00
Fleece Black Friday/Cyber Monday Sale: $53.85
Purchase Fleece Performance Coolant Bypass Kit 03-05 5.9L Auto Trans Cummins
    • 2003-2005 5.9L Dodge Cummins Auto Transmission

Description

Help eliminate the possibility of scored rear cylinders and blown freeze plugs on your 5.9L Cummins with this Coolant Bypass Kit from Fleece Performance! The Fleece Coolant Bypass solves the problem o ... read more

  • Share

Fast and Free Shipping On Orders Over $100

No Salesmen, Just Enthusiasts 888.993.4373

Help eliminate the possibility of scored rear cylinders and blown freeze plugs on your 5.9L Cummins with this Coolant Bypass Kit from Fleece Performance! The Fleece Coolant Bypass solves the problem of excessive coolant pressure before it becomes a problem. The integrated secondary thermostat locates at the back of the block and allows coolant to flow freely when at normal operating temperatures ensuring consistent temperatures across all six cylinders and eliminates excessive pressure. The kit comes with high quality AN o-ring fittings and AN hose connections with braided hose to ensure a leak free installation and installs in two hours or less!

Increased Coolant Flow, Decreased Coolant Temperatures - The rear cylinders on the 24 Valve 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 24 valves 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-0305
  • ManufacturerFleece Performance Engineering
  • MPNFPE-CLNTBYPS-CUMMINS-0305
WARNING: CANCER AND REPRODUCTIVE HARM www.P65Warnings.ca.gov Cancer and reproductive harm
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 black nylon braided hose and AN O-ring fittings to ensure a leak-free installation.

NO VIDEOS AVAILABLE

Blog Posts

Recommended Products

1 Review
5.00/5
(1)
(0)
(0)
(0)
(0)

Expect an answer within the next 48 hours

  • 0 Reviews
  • 0 Questions
Rate Fleece Performance Coolant Bypass Kit 03-05 5.9L Auto Trans Cummins

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

T
Verified Buyer
Highly recommend
Great replacement for blown out rear freeze plug!!
Store Reply
Thank you for the review. Absolutely, don't just put another freeze plug in that will just blow out again, fix it once and for all.

No questions have been asked. Be the first one!

Added To Cart

Fleece Performance Coolant Bypass Kit 03-05 5.9L Auto Trans Cummins

Fleece Performance Coolant Bypass Kit 03-05 5.9L Auto Trans Cummins

Quantity: 0