# Fleece Performance 03-18 Cummins Coolant Bypass Service Kit

Complete kit to service your Fleece Performance Coolant Bypass - Includes all O-rings, fasteners, and a new thermostat. Two thermostats included to service all production years, you will only use one (1) of the included thermostats when replacing your bypass thermostat. This kit does not include the Cummins thermostat. The kit includes 3 new square cut O-rings and 1 new standard O-ring as well as 2 new O-rings for each of AN fittings. When used with MY94 - MY2002 kits, not all O-rings will be utilized.

This Part Fits:

Year

Make

Model

Submodel

1994-2002

Dodge

Ram 2500

Base

2003,2005-2010

Dodge

Ram 2500

Laramie

2003-2010

Dodge

Ram 2500

SLT

2006-2007

Dodge

Ram 2500

Sport

2003-2010

Dodge

Ram 2500

ST

2008-2010

Dodge

Ram 2500

SXT

2010

Dodge

Ram 2500

TRX

2006-2007

Dodge

Ram 2500

TRX4

1994-2002

Dodge

Ram 3500

Base

2003-2010

Dodge

Ram 3500

Laramie

2003-2010

Dodge

Ram 3500

SLT

2006-2007

Dodge

Ram 3500

Sport

2003-2010

Dodge

Ram 3500

ST

2008-2009

Dodge

Ram 3500

SXT

2007

Dodge

Ram 3500

TRX4

2013-2018

Ram

2500

Big Horn

2011-2018

Ram

2500

Laramie

2014-2015

Ram

2500

Laramie Limited

2011-2018

Ram

2500

Laramie Longhorn

2016-2018

Ram

2500

Limited

2013-2015

Ram

2500

Lone Star

2012-2016

Ram

2500

Outdoorsman

2011-2018

Ram

2500

SLT

2011-2013

Ram

2500

ST

2013-2018

Ram

2500

Tradesman

2013-2018

Ram

3500

Big Horn

2011-2018

Ram

3500

Laramie

2014-2015

Ram

3500

Laramie Limited

2011-2018

Ram

3500

Laramie Longhorn

2016-2018

Ram

3500

Limited

2013-2015,2017

Ram

3500

Lone Star

2011-2018

Ram

3500

SLT

2011-2013

Ram

3500

ST

2013-2018

Ram

3500

Tradesman

## Details

- **Price:** 61.34 CAD
- **Vendor:** Fleece Performance
- **Type:** Coolant Bypass Kits

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 61.34 CAD | In stock |

## Images

- Photo - Primary
- User 1
- User 9
- Logo Image

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/fleece-performance-03-18-cummins-coolant-bypass-service-kit)
> Updated: 2026-06-27