Fleece Heater Core Replacement Hose and Fitting (FPE-CUMM-HCL-0324) for 2003-2024 Cummins 5.9L / 6.7L

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The Fleece Heater Core Replacement Hose and Fitting (FPE-CUMM-HCL-0324) is a direct-fit, high-quality upgrade for 2003–2024 Dodge Ram trucks with 5.9L or 6.7L Cummins diesel engines. Designed to replace problematic OEM heater core lines, it offers enhanced durability, leak resistance, and high-temperature performance. Made from premium materials, it ensures reliable coolant flow and is easy to install, making it ideal for improving or maintaining heating system efficiency.

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Description

The Fleece Heater Core Replacement Hose and Fitting (FPE-CUMM-HCL-0324) is a high-quality, direct replacement solution designed specifically for 2003–2024 Dodge Ram trucks equipped with the Cummins 5.9L or 6.7L diesel engines. Engineered for durability and precision, this hose and fitting kit addresses common issues associated with OEM heater core lines, such as leaks and premature wear. Manufactured from premium materials to withstand high temperatures and pressure, the Fleece replacement ensures reliable coolant flow and long-term performance under demanding conditions. Its straightforward installation and OE-style fit make it an ideal upgrade for those looking to maintain or improve their Cummins-powered vehicle’s heating system efficiency.

Additional information
Weight 3.0 lbs
Dimensions 14.0 × 6.0 × 4.0 in
Fitment

Fitment

  • 2003 Dodge Ram 2500/3500 5.9L 24V Cummins
  • 2004 Dodge Ram 2500/3500 5.9L 24V Cummins
  • 2004.5 Dodge Ram 2500/3500 5.9L 24V Cummins
  • 2005 Dodge Ram 2500/3500 5.9L 24V Cummins
  • 2006 Dodge Ram 2500/3500 5.9L 24V Cummins
  • 2007 Dodge Ram 2500/3500 5.9L 24V Cummins
  • 2007.5 Dodge Ram 2500/3500 6.7L 24V Cummins
  • 2008 Dodge Ram 2500/3500 6.7L 24V Cummins
  • 2009 Dodge Ram 2500/3500 6.7L 24V Cummins
  • 2010 Ram 2500/3500 6.7L 24V Cummins
  • 2011 Ram 2500/3500 6.7L 24V Cummins
  • 2012 Ram 2500/3500 6.7L 24V Cummins
  • 2013 Ram 2500/3500 6.7L 24V Cummins
  • 2014 Ram 2500/3500 6.7L 24V Cummins
  • 2015 Ram 2500/3500 6.7L 24V Cummins
  • 2016 Ram 2500/3500 6.7L 24V Cummins
  • 2017 Ram 2500/3500 6.7L 24V Cummins
  • 2018 Ram 2500/3500 6.7L 24V Cummins
  • 2019 Ram 2500/3500 6.7L 24V Cummins
  • 2020 Ram 2500/3500 6.7L 24V Cummins
  • 2021 Ram 2500/3500 6.7L 24V Cummins
  • 2022 Ram 2500/3500 6.7L 24V Cummins
  • 2023 Ram 2500/3500 6.7L 24V Cummins
  • 2024 Ram 2500/3500 6.7L 24V Cummins
Features

Features

  • High temperature silicone hose
  • Stainless steel barbed riser

Application Notes

This kit is a direct replacement for the following part numbers:

  • MY 2003 – 2007.5 5.9L Cummins:  Gates 19168
  • MY 2007.5 – 2010  6.7L Cummins: Gates 18774, Mopar 55056711AC
  • MY 2010 – 2012 6.7L Cummins: Mopar 55056966AA
  • MY 2011 – 2018 6.7L Cummins: Gates 23957
  • MY 2013 – 2024 6.7L Cummins: Mopar 52014739AG
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About brand
Fleece Performance Engineering is a diesel performance manufacturer focused on reliability and precision engineering. The company designs parts that solve common diesel issues while supporting added power. Fleece products support daily driving, towing, and performance diesel trucks. Fleece engineers fuel system components, turbochargers, electronics, and emissions-compliant upgrades in house. Their parts improve efficiency, drivability, and long-term engine protection. Each product is tested for proper fit and consistent performance. Diesel owners trust Fleece for dependable upgrades. Whether maintaining a work truck or building for performance, Fleece delivers proven solutions designed for real-world use.
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