Heating and Cooling› Overflow Tanks and Catch Cans

Fleece Performance

0318 RAM 2500/3500 CUMMINS COOLANT BYPASS SERVICE KIT

$40.49

SKU: F007 -CLNTBYPS-CUMMINS-SER-KIT

In Stock
In Stock
Ships by Jun 14
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

This kit addresses the increased demand on the cooling system when horsepower is increased, as the original design was intended for 300-350HP engines. It helps prevent excessive pressure buildup in the rear of the block that can lead to failures.

This kit includes two thermostats (you will only use one), three square cut O-rings, one standard O-ring, and fasteners. Fleece Performance recommends using a Cummins 190° thermostat in the stock location, and this kit does not include the Cummins thermostat itself.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFleece Performance
Part NumberF007 -CLNTBYPS-CUMMINS-SER-KIT

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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