Injector Harness Pigtail

Features:

• Fits 2020–2024 GM 3.0L Duramax LM2 and LZ0
• 12-pin connector for injector harness repair
• Includes heat-sealable butt-style connectors
• Restores proper injector wiring function
• Eliminates damaged or corroded connector issues
• Precision crimped terminals for secure fitment
• Fully automated wire cutting for consistent quality
• Manufactured in-house by Fleece Performance
• Durable construction for harsh engine environments
• Quick and easy installation process
• Backed by a 6-month limited warranty

Fix Injector Wiring Issues Before They Cost You More

If your 3.0L Duramax has started acting up with misfires, rough running, or random fault codes, a damaged injector harness pigtail could be the real culprit. The Fleece FPE-HAR-LM2-INJ-12P-PT gives you a clean, dependable way to repair the injector wiring on 2020-2024 GM Duramax LM2 and LZ0 trucks without replacing the entire harness. This 12-pin repair pigtail is built to get your truck back to running the way it should, whether it is a daily driver or a work truck that cannot afford downtime. It includes heat-sealable butt-style connectors, making installation straightforward while helping protect the repair from moisture and corrosion. Fleece produces these pigtails in-house, which means every wire and terminal is made with consistency and quality in mind. Instead of gambling on a generic repair, this pigtail gives you confidence that the connection will hold up long term. It is a smart fix that saves time, money, and frustration in the garage.

Engineered For Reliable Injector Signal And Long Term Durability

The Fleece injector harness pigtail is designed specifically to repair damaged wiring at the injector connection point on GM 3.0L Duramax LM2 and LZ0 engines. A compromised injector pigtail can interrupt signal integrity, leading to drivability issues or inaccurate injector operation. To prevent those problems, Fleece uses fully automated wire cutting and terminal crimping during manufacturing, ensuring precise lengths and consistent electrical connections. The 12-pin connector is built to match factory specifications, allowing proper fitment and reliable communication with the injector. Heat-sealable butt connectors are included to create a sealed and durable splice during installation, which is critical in the harsh engine bay environment. This pigtail is intended as a focused repair solution when injector wiring is damaged but the main harness remains serviceable. Backed by a 6-month limited parts warranty, it delivers peace of mind for technicians and DIY owners alike.

Fitment: 2020, 2021, 2022, 2023, 2024 GM 3.0L Duramax LM2/LZ0

Notes:

• Designed for 2020–2024 GM 3.0L Duramax LM2 and LZ0 engines
• Used to repair damaged injector harness connections
• 12-pin connector matches factory injector harness layout
• Includes heat-sealable butt connectors for a weather-resistant seal
• Ideal for fixing misfires or injector-related fault codes
• Manufactured in-house by Fleece for consistent quality control
• Production includes automated wire cutting and crimping processes
• Recommended when factory harness is intact but pigtail is compromised
• Professional installation is advised for proper sealing and fitment
• Covered by a 6-month limited parts warranty from the manufacturer
• Prop 65 warning label