OE Quality
60-Day Returns

Depo 335-1934L-AC Tail Light Assembly - Left
Reliable Tail Light Assembly for GMC Sierra Trucks
The Depo 335-1934L-AC tail light assembly is designed specifically for GMC Sierra 1500, Sierra 2500 HD, and Sierra 3500 HD models. This exterior lighting component ensures proper signaling and visibility, maintaining safety and compliance on the road.
- Direct replacement tail light assembly for GMC Sierra 1500, 2500 HD, and 3500 HD
- Durable construction for long-lasting performance
- Compatible with original equipment specifications
- Left side (driver side) tail light unit
- Part number 335-1934L-AC for precise identification
Product Details and Compatibility
The Depo 335-1934L-AC tail light assembly is engineered to meet the exact fitment requirements of GMC Sierra 1500, Sierra 2500 HD, and Sierra 3500 HD trucks. This ensures seamless integration with the vehicle’s existing wiring and mounting points. The assembly provides all necessary lighting functions including brake, turn signal, and reverse lights, contributing to safe driving conditions. Its robust design withstands typical road and weather conditions, making it a reliable replacement part for exterior lighting needs.
Common Applications and Problem Solving
- Replacement for cracked or broken tail light lenses
- Restores proper brake and turn signal functionality
- Fixes issues with non-functioning or dim tail lights
- Improves vehicle visibility and safety during night driving
- Ensures compliance with road safety regulations for GMC Sierra trucks
Installation Notes and Tips
Installation of the Depo 335-1934L-AC tail light assembly is straightforward for GMC Sierra 1500, 2500 HD, and 3500 HD models. It is recommended to disconnect the vehicle battery before beginning installation to avoid electrical shorts. Carefully remove the damaged tail light assembly by unscrewing mounting bolts and disconnecting the wiring harness. Connect the new assembly’s wiring harness securely and test all lighting functions before finalizing the installation. Proper alignment with the vehicle body ensures a secure fit and optimal performance.
Quality Assurance and Warranty
Depo manufactures this tail light assembly to meet industry standards for quality and durability. While specific warranty details are not provided, Depo products typically undergo rigorous testing to ensure reliable operation. Using the 335-1934L-AC part number guarantees compatibility and quality consistent with OEM specifications for GMC Sierra 1500, 2500 HD, and 3500 HD vehicles.
This part fits 35 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2013 | GMC | Sierra 1500 | SL | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2013 | GMC | Sierra 1500 | SLT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2013 | GMC | Sierra 1500 | WT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2013 | GMC | Sierra 1500 | SLE | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2012 | GMC | Sierra 1500 | SL | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2012 | GMC | Sierra 1500 | SLT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2012 | GMC | Sierra 1500 | WT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2012 | GMC | Sierra 1500 | SLE | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2011 | GMC | Sierra 1500 | SL | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2011 | GMC | Sierra 1500 | SLT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2011 | GMC | Sierra 1500 | WT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2011 | GMC | Sierra 1500 | SLE | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2010 | GMC | Sierra 1500 | SLT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2010 | GMC | Sierra 1500 | WT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2010 | GMC | Sierra 1500 | SLE | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2010 | GMC | Sierra 1500 | SL | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2010 | GMC | Sierra 2500 HD | Left | 1st Design; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 | |
| 2010 | GMC | Sierra 3500 HD | Left | 1st Design; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 | |
| 2009 | GMC | Sierra 1500 | SL | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2009 | GMC | Sierra 1500 | SLT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2009 | GMC | Sierra 1500 | WT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2009 | GMC | Sierra 1500 | SLE | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2009 | GMC | Sierra 2500 HD | Left | 1st Design; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 | |
| 2009 | GMC | Sierra 3500 HD | Left | 1st Design; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 | |
| 2008 | GMC | Sierra 1500 | SL | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2008 | GMC | Sierra 1500 | SLT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2008 | GMC | Sierra 1500 | WT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2008 | GMC | Sierra 1500 | SLE | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2008 | GMC | Sierra 2500 HD | Left | 1st Design; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 | |
| 2008 | GMC | Sierra 3500 HD | Left | 1st Design; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 | |
| 2007 | GMC | Sierra 1500 | SLT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2007 | GMC | Sierra 1500 | WT | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2007 | GMC | Sierra 1500 | SLE | Left | 1st Design; 1st Design; OEM: 25958484; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
| 2007 | GMC | Sierra 2500 HD | Left | 1st Design; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 | |
| 2007 | GMC | Sierra 3500 HD | Left | 1st Design; GM2800208C; 1st Design; OEM: 25958484; OEM: 25958484 |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.