GM Duramax 6.6L - Shibby Engineering Tuner Harness Plug Kit (2011-2023)
Type: Accessories | Fits: GM Duramax
Introduction
Protect exposed wiring after emissions modifications with the Duramax DPF Delete Plug Kit (2011-2023). Designed for GM/Chevy 6.6L LML, LGH, L5P and L5D engines, this kit seals unused exhaust and EGR connectors to block out moisture, dirt and debris. It provides a clean, factory-style finish for trucks running performance or off-road calibrations.
Available Manufacturers
Customers can now choose between Shibby Engineering's plug kit and the newly added Black Bandit option. Black Bandit manufactures locally, allowing them to offer a more cost-effective price point while maintaining and in many cases exceeding the same premium build standards expected in the diesel performance market.
Key Features
- Weatherproof Protection - Factory style caps shield unused connectors from moisture, dirt and debris.
- OEM-Like Fit and Finish - Each plug locks securely into the harness, giving the engine bay a clean, professional appearance.
- Simple Installation - No special tools required; the caps snap into place quickly and easily.
Benefits
- Prevents Wiring Damage - Weather-sealed caps guard unused connectors from corrosion and environmental exposure.
- Clean, Factory-Style Appearance - Maintains a tidy, OEM-like look after removing emissions components.
- Performance-Focused Compatibility - Ideal for trucks equipped with DPF, EGR or exhaust modifications and off-road calibrations.
Compatibility
- 2011-2023 GM/Chevy 6.6L Duramax LML
- 2011-2023 GM/Chevy 6.6L Duramax LGH
- 2017-2023 GM/Chevy 6.6L Duramax L5P
- 2019-2023 GM/Chevy 6.6L Duramax L5D
Technical Specifications
- Design: Snap-in protective caps for unused DPF/EGR wiring connectors
- Construction: Weather-resistant polymer housings
- Function: Seals open harness ends created by exhaust or emissions-system modifications
- Fitment: Direct OEM-style engagement with no wiring modification required
Installation & Notes
- Installation Time: Under 30 minutes with basic hand tools
- Tool-free, snap-in design
- Designed for trucks with off-road or performance modifications
Additional Information
-
Not Included:
- DEF tank plugs
- Shift-on-the-fly tuning caps
- Best For: Owners needing clean, protected wiring after emissions-system removal or modification.
Hurry Up! Only 63 items left in stock!
Copy link:
Share:
TARIFF NOTICE:
While we ship with all required USMCA/CUSMA paperwork, U.S. Customs or carriers may still apply duties or fees at delivery. For details, see U.S. Customs & Border Protection
Shipping
We strive to provide fast and reliable shipping options for all our customers. For detailed information about our shipping rates, delivery times, and policies, please visit our Shipping Page.
Return Policies
Your satisfaction is important to us. If you wish to return an item or request a refund, please review the terms and conditions outlined in our Returns Policy.
Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
