• Shibby Engineering tuner harness plug kit for GM Chevy Duramax diesel engines 2011-2023.
1 1

Tuner Harness Plug Kit | GM/Chevy 2011-2023 | Shibby Engineering

Tuner Harness Plug Kit | GM/Chevy 2011-2023 | Shibby Engineering

$169.00
$169.00
Sale Sold out
Shipping calculated at checkout.
  • Increased Horsepower
  • Maintenance Savings
  • Increased Fuel Mileage
Choose Year
  • We Pay Shipping
  • Tech Support
  • Installation Guide
View full details

FITMENT

Please choose the correct variant before placing your order.

This harness plug kit is compatible with:

  • Years: 2011–2023
  • Models: Chevy Silverado and GMC Sierra Duramax pickups
  • Engine: 6.6L Duramax LML (2011–2016) and L5P (2017–2023)

IMPORTANT INSTALLATION INFORMATION

We don’t have installation instructions for these harness plugs yet, but installing them is quick and straightforward. Our team is working on more detailed instructions.

The plugs cap off all the required sensors along the DPF/CAT and exhaust system after your delete, protecting them from the elements.

The Tuner Harness Plug Kit for 2011–2023 GM LML and L5P Duramax trucks caps off your exposed OEM EGR and DPF (Diesel Particulate Filter) harness connectors after a delete — keeping moisture, dirt, and debris out of the connectors now sitting unused under your hood and beneath your truck.

When you pull the EGR (Exhaust Gas Recirculation) and DPF systems, the factory wiring connectors that fed them don't go anywhere. They dangle there, exposed to heat, water, and road grime, and over time unprotected connectors corrode. That corrosion can spread to nearby wiring and throw phantom codes that are a pain to diagnose. This kit seals all of it off before that starts.

It provides the harness caps to keep water and debris out of the harness both under the hood and under the body of the truck. Each cap plugs directly into the OEM connector with no modification — easy to install, no tools, no guesswork — and leaves your engine bay with a clean, finished look. Shipping is included in the price.

Fitment is for 2011–2016 LML and 2017–2023 L5P Duramax pickup models only. It does not fit Cab & Chassis trucks, and it won't fit LMM, LBZ, LLY, or LB7 Duramax generations — the connector profiles are specific to the LML and L5P. Need help figuring out which connector is which? Call (888) 830-2588 or email sales@thedieseldudes.com.

For off-road/competition use only.

THE DIESEL DUDES vs Other Retailers

US

VS

THEM

  • Talk To A Real Human at 888-830-2588

    Hide Behind Their Website

  • We Ship World Wide, Including USA

    Limited Shipping Locations

  • Hundreds Of Positive Reviews From Real Customers

    Bad Service & Bad Reviews (or none at all)

  • Hand Selected The Best Delete Tuners & Parts For Every Year/Make/Model

    Show You A Large Catalog Of Options And Tell You "Good Luck, Figure It Out"