01-04 GM 2500/3500 DURAMAX LB7 OUTER INJECTOR CONNECTOR PIGTAIL

Outer Injector Connector Pigtail | 2001–2004 Duramax LB7

Fix misfires and injector fault codes fast with this direct replacement Outer Injector Connector Pigtail from Fleece Performance. Built for the 2001–2004 GM 2500/3500 6.6L Duramax LB7, this pigtail restores a clean, reliable electrical connection to the outer bank injectors — one of the most common wiring failure points on the LB7 platform.

Why the LB7 Outer Injector Connectors Fail

The LB7 Duramax outer injector connectors are exposed to extreme heat, oil contamination, and vibration. Over time the plastic cracks, terminals corrode, and the locking tabs break — causing intermittent or complete loss of injector signal. The result is cylinder misfires, rough idle, excessive smoke, and injector-related fault codes. Replacing the connector pigtail is a fast, inexpensive fix that avoids the cost of replacing a perfectly good injector.

Features

• Direct replacement outer injector connector with pre-attached pigtail
• Restores proper electrical signal to outer bank injectors
• Resolves misfires and injector fault codes caused by failed connectors
• Built to withstand the heat and vibration of the LB7 engine bay
• From Fleece Performance — a trusted name in Duramax fuel system components

Fitment

• 2001–2004 GM Silverado/Sierra 2500/3500 6.6L Duramax LB7

Before you replace an injector, check the connector. This pigtail is often all it takes to get your LB7 running clean again.