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  • For Off-Road Use Only
    Black Bandit Accessories 2017-2019 GM Duramax L5P - CAN BUS Plug Kit (2017-2023)
  • For Off-Road Use Only
    Black Bandit Accessories 2020 -2023 GM Duramax L5P - CAN BUS Plug Kit (2017-2023)
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GM Duramax L5P CAN BUS Plug Kit (2017-2023)

Sku: AC-Plug-L5P-17

This product fits:

2017-2019 GM Duramax L5P 6.6L Silverado 2500HD / 3500HD
2017-2019 GM Duramax L5P 6.6L Sierra 2500HD / 3500HD
$154.00
-0%
Shipping calculated at checkout.
Select the model year of your truck to ensure compatibility:: 2017-2019

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Within the device vehicle info section, look for the value with the text containing "14C204":
HC3A-14C204-ABH

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Black Bandit Series 3 material image
T304 Stainless Steel

The Purest Stainless Steel used in Exhaust System Manufacturing

rust resistant icon

High Rust Resistance

Lasts up to 20+ years icon

Lasts Up To 20+ years

Looks better icon

Looks Better

Black Bandit title material-image
T409 Stainless Steel

The Standard Stainless Steel used in Exhaust System Manufacturing

rust prone icon

Low Rust Resistance

Lasts up to 20+ years icon

Lasts Up To 5-8 Years

Looks better icon

Looks Dull

Attention

A 2022 Cummins Tune Package was added to your cart. This tune is a beta tune that may cause the following:

  • Low power
  • Poor fuel mileage
  • Engine codes that may appear
  • Poor shifting characteristics

For a tested and proven tune, please view our Ram Cummins 6.7L All-in-One DPF/DEF/EGR Delete Kit w/ECM Swap (2022-2024)

Attention

You have added a product to your cart that requires the Service. This required additional service is NOT included in the price shown on TunerDepot.com. This means that you will be required to pay for the Service in addition to the product you have just added to the cart.

Introduction

The Duramax L5P CAN BUS Plug Kit is an essential component for 2017–2023 Silverado and Sierra 6.6L L5P diesel trucks running delete tuning. Designed to support DPF and DEF removal, this plug kit ensures proper ECM communication after emissions components are removed, preventing fault signals that can lead to drivability and performance issues.

Features

  • Designed specifically for 2017–2023 GM 6.6L L5P Duramax diesel trucks
  • Required for DPF and DEF delete tuning applications
  • Replaces factory NOx and DEF module connections after removal
  • Sends a closed CAN BUS signal to the ECM
  • Supports aftermarket exhaust systems and delete pipes
  • Plug-and-play design for simplified installation
  • Built for off-road and competition-use vehicles

Benefits

  • Prevents ECM errors caused by missing emissions modules
  • Maintains stable engine operation after DPF/DEF removal
  • Ensures reliable communication within the CAN BUS system
  • Supports aggressive tuning and heavily modified diesel setups
  • Helps avoid performance issues related to faulty sensor signals

Compatibility

Make Chevrolet GMC
Model Silverado 2500HD / 3500HD Sierra 2500HD / 3500HD
Year Range 2017–2023 2017–2023
Engine GM 6.6L L5P Duramax Turbo Diesel V8  GM 6.6L L5P Duramax Turbo Diesel V8

Technical Specifications

  • Application: CAN BUS signal management for delete tuning
  • Engine Platform: GM Duramax L5P
  • Function: Closed signal emulator for NOx/DEF modules
  • Installation Type: Plug-and-play
  • Intended Use: Off-road / competition only

Installation & Notes

  • Installs after removal of factory DPF and DEF components
  • Designed to be used with aftermarket exhaust or delete pipes
  • Delete tuning is required for proper operation
  • For off-road and competition use only; not legal for on-road emissions-controlled vehicles

Frequently Asked Questions

Q: Why is this CAN BUS plug kit required for delete tuning?
A: When DPF and DEF systems are removed, the L5P ECM no longer receives expected signals. This plug kit provides a closed signal to prevent fault codes and performance issues.

Q: Will this work with aftermarket L5P exhaust systems?
A: Yes, it is designed specifically for trucks running aftermarket exhausts or delete pipes.

Q: Does this kit replace L5P sensors or modules?
A: L5P plugs replace the electrical connection of the NOx and DEF modules after they are physically removed.

Q: Is tuning required when using this L5P plug kit?
A: Yes, proper delete tuning is required for correct engine operation.

Important Product Information

Off-Road Use Only: The products sold on this website are intended for off-road use only, and may not be legal for use on public highways where pollution control laws apply.

Check Local Laws: Before purchasing and installing any of these parts, please check your local and state laws to confirm whether the modifications are legal in your area.

Professional Installation Recommended: These kits and parts are strongly recommended to be installed by professional mechanics only. Improper installation may lead to performance issues or damage to your vehicle. Unless specified differently on the product page, our parts do not include installation instructions. They are intended for individuals with a proficient understanding of mechanical systems and procedures. Like many aftermarket parts compatible with a variety of vehicles, minor adjustments or modifications may be necessary during the installation process. We cannot accept returns or offer refunds on the basis of an inability to complete the installation due to the absence of instructions.

Warranty: The use of these parts will void the warranty of your vehicle. Please confirm with your vehicle manufacturer before purchase and installation.

No Liability: Tuner Depot is not responsible for any damage or issues that may arise from the use of these parts.

Product Images: Product images are for illustrative purposes only and may differ from the actual product due to manufacturer design changes or improvements.

No Performance Guarantees: While these parts are designed to enhance the performance of your vehicle, no guarantees are made regarding the specific performance gains that will be achieved.

Shipping Policy at Tuner Depot

At Tuner Depot, we understand the importance of timely delivery for your performance parts. We're committed to ensuring a seamless shipping experience, striving to dispatch your orders with utmost efficiency and speed.

Our Shipping Policy: Our aim is to dispatch all orders within two business days, providing you with a quick and efficient processing time. However, unforeseen circumstances beyond our control may occasionally impact shipping times.
Factors Affecting Shipping:
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  • Holiday Periods: Please note that our shipping center will be closed during holidays. We will resume shipping promptly on the next business day. Allow for potential delays during peak seasons, but rest assured, we will keep you informed every step of the way.
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We genuinely appreciate your understanding and patience during any unexpected obstacles. Be assured that we will utilize every resource available to deliver your performance parts promptly.