Not CARB Legal

Fleece Coolant Bypass Kit 1998.5-2002 Dodge 5.9L Cummins Stainless

SKU: fpeFPE-CLNTBYPS-CUMMINS-VP-SS UPC: 670875715073
In stock - 4 items available
Regular price $397.95

Have a question about this part? We'll answer it.

Verified Fitment & Application Support

This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.

Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase. Orders shipping to restricted areas may be canceled.

This Coolant Bypass kit from Fleece Performance routes additional coolant to the rear of the block on 1998.5-2002 Dodge Ram 2500/3500 5.9L VP44 24V Cummins, where factory flow is weakest and coolant temperatures run highest.

Key Features

  • Secondary thermostat operates on temperature rather than pressure, so flow increases before pressure becomes a problem
  • Increases coolant flow to the rear cylinders and lowers coolant temperature there
  • Helps prevent the pressure build-up that pushes out external freeze plugs and the smaller plugs under the valve cover
  • AN O-ring fittings and stainless steel braided hose for a leak-free installation

Fitment

1998.5-2002 Dodge Ram 2500/3500 5.9L VP44 24V Cummins with automatic and manual transmission.

Model years covered: 1998.5, 1999, 2000, 2001, 2002.

Product Details

  • Brand: Fleece Performance
  • Manufacturer Part Number: FPE-CLNTBYPS-CUMMINS-VP-SS

Shipping Height: 3.2

Shipping Length: 16.2

Shipping Width: 12.5

Rebuilt by Techs Who Only Do Diesel

Injectors, pumps, and turbos, serviced by people who've been doing this for decades — not a parts counter with a catalog.

Get A Quote