GM 7620390AC Module Harness L5P

( Brand: Gm ), ( Manufacturer Part Number: 7620390AC ), ( Part Type: Module Harness )

Review GM Oem Def Module Harness L5p fits SILVERADO SIERRA 2500 3500 2017–2019

The GM 7620390 AC Def Module Harness is a crucial component for the air conditioning system in certain 2017 and 2019 model year Silverado 2500 and Sierra 3500 L5P trucks. This harness ensures proper communication between the climate control system and the engine control module, allowing the air conditioning system to function optimally.

The AC Def Module Harness is meticulously engineered using high-quality wiring and connectors to ensure reliable performance. Each wire is carefully insulated to protect against electrical interference and damage from the elements. The connector pins are precisely molded to ensure a secure and snug connection with the corresponding terminals.

This harness includes all the necessary wiring required for the air conditioning system, including power, ground, and control signals. The wires are color-coded for easy identification and installation. The harness also features a plug-and-play design, allowing for a straightforward installation process.

The GM 7620390 AC Def Module Harness is specifically designed for use in 2017 and 2019 Silverado 2500 and Sierra 3500 L5P trucks with the 6.6L Duramax diesel engine. It is an excellent replacement for a worn-out or damaged original harness, and it is also suitable for use in vehicles undergoing modifications or upgrades.

Installing the GM 7620390 AC Def Module Harness is a relatively straightforward process. The harness simply plugs into the corresponding connectors in the climate control system and the engine control module. No complex wiring or splicing is required, making it an ideal solution for DIY enthusiasts and professional technicians alike.

In summary, the GM 7620390 AC Def Module Harness is a high-quality, reliable, and easy-to-install solution for maintaining the air conditioning system in your 2017 and 2019 Silverado 2500 or Sierra 3500 L5P truck. With its plug-and-play design, color-coded wiring, and durable construction, this harness is an essential addition to any vehicle maintenance or upgrade project.

The GM 7620390AC Def Module Harness is a crucial component for the 2017-2019 Silverado 2500 and Sierra 3500 L5P trucks. This harness controls various functions related to the diesel engine, including the DEF (Diesel Exhaust Fluid) system. Here are some pros and cons of buying this harness:

1. OEM (Original Equipment Manufacturer) part: This harness is manufactured by General Motors, ensuring it is a perfect fit and functions exactly as the original part.

2. Improved engine performance: A faulty DEF module harness can lead to various issues, such as poor fuel economy, rough idling, and check engine lights. Replacing it with a new one can help restore the truck's performance and reliability.

3. Long-term savings: Investing in an OEM harness can save you money in the long run, as it ensures the system is working efficiently, reducing the need for costly repairs or replacements down the line.

4. Compatibility: This harness is designed specifically for the 2017-2019 Silverado 2500 and Sierra 3500 L5P trucks, ensuring a perfect fit and proper function.

1. Cost: OEM parts, especially harnesses, can be more expensive than aftermarket alternatives. However, the long-term savings and improved performance may outweigh the initial investment.

2. Installation: Installing a harness can be a complex process, especially for those without experience in automotive electronics. It may be necessary to hire a professional mechanic or dealership for the installation.

3. Availability: Depending on the location and availability, it may take some time to source and receive the harness.

In conclusion, the GM 7620390AC Def Module Harness is a valuable investment for 2017-2019 Silverado 2500 and Sierra 3500 L5P truck owners. While it may come with a higher cost and installation challenges, the benefits of improved engine performance, long-term savings, and compatibility make it a worthwhile investment for those seeking reliable and efficient truck operation. If you are comfortable with the cost and installation process or have access to a professional mechanic, purchasing this harness is recommended.

Details:

Genuine GM DEF Control Module Wiring Harness, Part Number: 7620390AC, Removed from: 2018 Chevy Silverado 2500HD 6.6L Dramas L5P, Fits: 2017 2019 GMC Sierra / 3500HD L5P Dramas, This harness connects the main chassis to Diesel Emissions Fluid DEF control module. Details: OEM GM harness not aftermarket, Direct plug-and-play fit, For L5P Dramas emissions system 2017 2019 , Ideal for replacements or repairs involving the DEF control module wiring, Please verify compatibility with your vehicle confirm dealer using part number above. Ships fast and safely. Condition: Used removed from a fully functional vehicle.

Clean connectors and intact insulation. No cuts, broken clips, or corrosion. It serves as the interface between trucks wiring system and DEF module GM part #84305496.

part #: 7620390ac price

• $60.00

specifications airintakesystemse:

• for models: 2500, 3500, Silverado, Sierra
• for years: 2017-2019
• brand: Gm
• mpn: 7620390ac
• part type: Module Harness

general airintakesystemse:

• condition: Used
• Car Truck Parts Accessories > Air Fuel Delivery > Hoses, Lines Pipes

seller airintakesystemse:

• # reviews: 633
• city: Flagler Beach, Florida
• rating: 98.1%

returns airintakesystemse:

• policy: No Returns

offer airintakesystemse:

• best offers: True
• options: Ship-to-home
• availability: In Stock
• started: August 1, 2025
• sold: 0
• quantity: 1

payments airintakesystemse:

• credit card: Visa
• other
• wallet: Google-pay

shipping airintakesystemse:

• type: Calculated
• service: USPS Ground Advantage
• cost: $0.00
• carrier: USPS
• class: Standard
• transit: 5-11 Days

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