Fleece Outer Injector Harness Pigtail (FPE-HAR-DMAX-LB7-INJ-PT) for 2001-2004 Duramax LB7

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The Fleece Performance Fleece Outer Injector Harness Pigtail (FPE-HAR-DMAX-LB7-INJ-PT) is a high-quality, direct-fit replacement for the outer injector harness on 2001–2004 GM 6.6L Duramax LB7 engines. Designed to address issues like brittle, damaged, or corroded factory connectors, it features OEM-style connectors and premium wiring for durability and reliable performance. Ideal for repairs or custom rebuilds, it helps maintain proper injector function and engine efficiency, making it a trusted choice for technicians and Duramax enthusiasts.

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SKU: FPE-HAR-DMAX-LB7-INJ-PT Categories: , , ,
Description

The Fleece Performance Fleece Outer Injector Harness Pigtail (FPE-HAR-DMAX-LB7-INJ-PT) is a high-quality replacement component designed specifically for 2001–2004 GM 6.6L Duramax LB7 engines. Over time, the factory injector harness connectors can become brittle, damaged, or corroded, leading to poor electrical connections and potential injector performance issues. This pigtail offers a direct-fit solution, featuring OEM-style connectors and premium-grade wiring for long-lasting durability and reliable performance. Whether you’re repairing a damaged harness or completing a custom rebuild, the Fleece Outer Injector Harness Pigtail ensures a secure connection to maintain proper injector function and engine efficiency. It’s an ideal choice for technicians and Duramax enthusiasts looking to restore their LB7’s performance with confidence.

Additional information
Weight 2 lbs
Dimensions 12 × 4 × 4 in
Fitment

Fitment

  • 2001 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
  • 2002 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
  • 2003 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
  • 2004 GM Silverado/Sierra 2500/3500 6.6L LB7 Duramax
Installation

Installation

This is the external connection for the engine harness that mates to the “Inner Injector Harness”, GM 97207227. A total of four (4) of these are utilized on the engine. 

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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