Duramax Harness Plug Kit | 2024-2026 Duramax 6.6L

This protective plug kit is designed for tuned or optimized GM Duramax trucks where exhaust or EGR harness connectors are left exposed after modifications. It provides a simple, effective solution to protect factory connectors from environmental damage.

Overview:

The base tuner harness plug kit includes weatherproof caps with factory-style interfaces to protect exhaust harness connectors and select EGR components. This is a protective solution for exposed connectors — not a tuning device.

Key Details:

• Weatherproof harness caps with factory-style interfaces
• Protects exhaust harness connectors and selected EGR components
• Seals against moisture, debris, and corrosion
• Designed for tuned or optimized applications

Compatibility:

• 2024–2026 GM Duramax 6.6L
• Compatible with L5P and L5D engine platforms

What's Included:

• Base kit with weatherproof caps for exhaust and select EGR harness connectors

Notes:

• Will NOT cover vehicles with full EGR systems still installed
• Does NOT include coverage for DEF tank components
• Does NOT include CAN piggyback plugs
• Not compatible with vehicles using SOTF tuning caps