Description
L5P Can Bus Plugs — Essential for 2017-2019 Duramax 6.6L L5P Configurations
The iFJF 4-Pack L5P Can Bus Plugs are precision-engineered connectors designed for 2017-2019 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD equipped with the 6.6L L5P Duramax diesel engine. These plugs provide reliable closed-loop signal communication when configuring aftermarket exhaust system setups.
Key Features
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ABS Construction: Durable, heat-resistant ABS material withstands engine bay temperatures and vibration
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4-Pack Complete Set: Includes all plugs needed for full exhaust system configuration
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Plug-and-Play: No splicing, no programming — direct connector replacement
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Secure Fit: Precision-molded connectors ensure tight, weatherproof seal
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OEM Connector Compatibility: Matches factory harness connectors for seamless integration
Compatibility
| Year |
Make |
Model |
Engine |
| 2017-2019 |
Chevrolet |
Silverado 2500HD / 3500HD |
6.6L L5P Duramax |
| 2017-2019 |
GMC |
Sierra 2500HD / 3500HD |
6.6L L5P Duramax |
Technical Specifications
| Specification |
Detail |
| Material |
ABS (Acrylonitrile Butadiene Styrene) |
| Item Type |
CAN BUS Plug / Connector |
| Quantity |
4 Pieces |
| Connector Type |
OEM-Compatible Pin Layout |
| Operating Temperature |
-40°F to 257°F (-40°C to 125°C) |
Why Choose iFJF L5P Can Bus Plugs?
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Tested Reliability: Each plug is tested for proper resistance values to ensure accurate ECM signal communication
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Weather-Sealed: Rubber grommets prevent moisture and debris intrusion
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Cost-Effective: Complete 4-pack at a fraction of dealership connector pricing
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Fast US Shipping: Ships from domestic warehouse, typically arrives within 3-7 business days
Frequently Asked Questions
Q: What do these CAN bus plugs do?
A: These plugs replace the factory NOx sensor and DEF module harness connections, providing a closed signal loop back to the ECM for proper system communication when running aftermarket exhaust configurations.
Q: Will these work on my 2020 Duramax?
A: No, these are specifically designed for 2017-2019 L5P Duramax. The 2020-2022 models require a different connector pinout. Please see our 2020-2022 version for those model years.
Q: Is programming required?
A: These are plug-and-play hardware connectors. No tuning or ECM reprogramming is needed for signal loop operation.
Q: Are these weatherproof?
A: Yes, the connectors feature sealed rubber grommets and weather-resistant ABS housing to protect against moisture, road salt, and debris.
Q: How long do they last?
A: With proper installation in a clean, dry location away from direct exhaust heat, these plugs will last the life of your vehicle.
