Fleece Valve Cover Conversion Harness (FPE-HAR-CUMM-VC-ADPT-EARLY) for 2003-2005 Cummins 5.9L

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The Fleece (FPE-HAR-CUMM-VC-ADPT-EARLY) is a plug-and-play valve cover conversion harness for 2003–2005 Dodge Ram trucks with 5.9L Cummins engines. It allows easy installation of a later model valve cover without cutting or splicing, enhancing aesthetics and functionality. Built with durable materials and OEM-style connectors, it ensures reliable performance and is ideal for performance upgrades.

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Description

The Fleece (FPE-HAR-CUMM-VC-ADPT-EARLY) is a high-quality Fleece Valve Cover Conversion Harness designed specifically for 2003-2005 Dodge Ram trucks equipped with the 5.9L Cummins diesel engine. This harness simplifies the installation of a later model valve cover on early 5.9L engines, making it ideal for performance enthusiasts or those upgrading to a common rail valve cover for improved aesthetics or functionality. Engineered for a direct plug-and-play fit, the harness eliminates the need for cutting or splicing, ensuring a clean and reliable electrical connection. Built with durable materials and OEM-style connectors, the Fleece conversion harness maintains factory-like performance and reliability, making it a trusted choice for Cummins owners performing this popular upgrade.

Additional information
Weight 2.0 lbs
Dimensions 9.0 × 9.0 × 3.0 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
Features

Features

Convert your 2003-2005 Ram with 4-pin injector connectors to the 2006-2018 6-pin injector connectors with our plug-and-play conversion harness.

 This conversion harness is for use on a 2003-2005 Cummins where a 2006 and newer rocker box style is used.

Installation

Installation

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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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