• Shibby Engineering tuner harness plug kit for GM Chevy Duramax diesel engines 2011-2023.
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Tuner Harness Plug Kit | GM/Chevy 2011-2023 | Shibby Engineering

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

$169.00
$169.00
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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.

FITMENT

Fits 2011-2016 LML and 2017-2021 L5P

TUNER HARNESS PLUG DETAILS

✅ Best Tuner Harness Kit for 6.7L Powerstroke Models

✅ Easy To install

✅ Protect and Seals Your Factory Connectors from Moisture, Dirt and Debris

✅ Provides Clean and Finished Look

✅  EGR/DPF PLUGS

✅ Shipping Included In Price

PRODUCT FEATURES

This plug kit provides the harness caps to keep water and debris out of the vehicle harness under the hood and under the body of the truck.

Protect your OEM connections from corrosion or damage, these Tuner Harness Plugs will keep all required connectors to be protected from the elements.

DISCLAIMER - INSTALLATION INSTRUCTIONS

At this time we do not have specific installation instructions for these tuner harness plugs.

These plugs are designed to cap off all of the required sensors along the DPF/CAT and exhaust system for your delete to keep them safe from the elements.

Our team is working hard to provide more detailed instructions for future use, however, the product installation is very straightforward and easy to install.

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