SX-3900

The Dorman SX-3900 tail light circuit board is an excellent replacement solution for the tail light electrical system in select 2007-2014 GMC Sierra 3500 models. This OE-quality part is meticulously engineered to provide a reliable and efficient solution for vehicles with faulty or malfunctioning tail light circuits.

This circuit board is specifically designed for the tail light system in these specific GMC Sierra 3500 trucks. It fits perfectly into the existing wiring harness and connectors, ensuring a seamless and easy installation process. The board houses essential components such as relays, fuses, and circuitry to power and control the tail lights, brake lights, and backup lights.

The Dorman SX-3900 tail light circuit board is manufactured with top-notch materials to ensure durability and longevity. It features robust components that can withstand the rigors of heavy-duty use, making it an ideal choice for GMC Sierra 3500 owners who rely on their vehicles for work or towing.

One of the standout features of this circuit board is its compatibility with various tail light assemblies. Whether you have stock tail lights or aftermarket ones, this board is designed to work seamlessly with them. It also ensures proper functionality of other features, such as automatic bulb failure protection and turn signal indicators.

In summary, the Dorman SX-3900 tail light circuit board is a high-quality, OE-standard replacement solution for the tail light system in 2007-2014 GMC Sierra 3500 trucks. It offers reliable performance, durability, and compatibility with various tail light assemblies, making it an essential part for any vehicle owner seeking to maintain the optimal functionality of their truck's lighting system.

Buying a Dorman SX-3900 tail light circuit board for a 2007-2014 GMC Sierra 3500 can be a viable solution for those experiencing tail light issues. Here are some pros and cons to consider before making a purchase:

1. Cost-effective: Aftermarket parts like the Dorman SX-3900 are generally more affordable than OEM (Original Equipment Manufacturer) parts.

2. Availability: Aftermarket parts like the Dorman SX-3900 are often easier to find and can be ordered online from various retailers.

3. Functionality: Replacing a faulty tail light circuit board with a new one can restore the functionality of the tail lights.

4. DIY repair: Installing an aftermarket circuit board is a relatively simple repair that can be done at home, saving time and money compared to taking the vehicle to a shop.

1. Quality concerns: Aftermarket parts may not be of the same quality as OEM parts. However, reputable manufacturers like Dorman have a good track record for producing reliable aftermarket parts.

2. Potential compatibility issues: While the Dorman SX-3900 is designed to fit a 2007-2014 GMC Sierra 3500, there is a small chance that it may not fit perfectly or may require additional modifications.

3. Warranty: Aftermarket parts usually do not come with the same level of warranty coverage as OEM parts.

In conclusion, buying a Dorman SX-3900 tail light circuit board for a 2007-2014 GMC Sierra 3500 can be a cost-effective and practical solution for those experiencing tail light issues. While there are some potential drawbacks, such as quality concerns and compatibility issues, the benefits of affordability, availability, and ease of installation make this an attractive option for many. Ultimately, the decision to purchase an aftermarket part like the Dorman SX-3900 depends on individual preferences and circumstances.

If you are comfortable with the potential risks and benefits of aftermarket parts, and have done your research to ensure the compatibility of the Dorman SX-3900 with your specific vehicle, then purchasing this aftermarket tail light circuit board can be a good choice. However, if you prefer the peace of mind that comes with OEM parts or have the financial means to do so, you may want to consider that option instead. In all cases, it's important to do your due diligence and make an informed decision based on your specific situation.

Details:

Dorman tail light circuit board for 2007 - 2014 Gmc Sierra 3500 hd electrical ul: status: in stock.

specifications interiorswoop:

• for models: 3500, Sierra
• for makes: Gmc
• for years: 2007–2014
• brand: Dorman Oe Solutions
• mpn: Sx-3900
• manufacturer warranty: 1 Year / 2 Years / 3 Years / 5 Years Depending On Part
• ipn: C215 14-5
• placement on vehicle: Electrical Lighting Body Lighting Exterior
• compatible model: Sierra 3500 Hd
• compatible year: 2014 2013 2012 2011 2010 2009 2008 2007
• core charge: Free No Core Charge
• type: Tail Light Circuit Board
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Dorman Tail Light Circuit Board

returns interiorswoop:

• paid by: seller
• time: 30 days
• policy: returns accepted

shipping interiorswoop:

• type: fixed
• class: standard, expedited
• transit: 2-6 days
• service: standard, expedited

payments interiorswoop:

• credit card: diners-club
• other
• wallet: google-pay

seller interiorswoop:

• rating: 99.0%
• # reviews: 580313
• city: indianapolis, indiana

offer interiorswoop:

• availability: in stock
• sold #: 13
• in stock #: 5
• options: ship-to-home
• started: october 14, 2025
• prices: $17.25–$356.18
• item condition: New

general interiorswoop:

• category: Auto Parts > Car Truck > Interior Accessories

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