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TYC 20-6778-90-9 Headlight Assembly - Left
Overview of TYC CAPA Certified Headlight Assembly
The TYC CAPA Certified Headlight Assembly 20-6778-90-9 is designed specifically for the left side of Buick Lucerne models. This headlight assembly includes halogen bulbs and features clear and amber lenses to meet lighting and signaling requirements.
- Includes halogen bulbs for low beam, high beam, and daytime running lights
- Clear and amber plastic lens for durability and visibility
- Plastic housing material designed for long-lasting performance
- SAE/DOT compliant for safety and legal standards
- Compatible with Buick Lucerne vehicles, left side position
Detailed Product Description
This TYC headlight assembly, part number 20-6778-90-9, is engineered to restore proper lighting function on the left side of Buick Lucerne vehicles. The assembly comes with halogen bulbs included for low beam, high beam, and daytime running lights, ensuring a complete lighting solution. The lens combines clear and amber colors, providing both headlight illumination and turn signal visibility. Constructed with durable plastic for both the lens and housing, this headlight assembly offers resistance to environmental elements while maintaining a lightweight design.
The CAPA Certified product line from TYC ensures that this headlight assembly meets or exceeds the standards set by the Certified Automotive Parts Association. This certification confirms the part’s quality, fit, and function, making it a reliable replacement for your Buick Lucerne’s exterior lighting needs.
Common Applications and Issues Addressed
- Replacement for cracked or damaged left headlight assembly on Buick Lucerne
- Restores proper low beam and high beam lighting performance
- Fixes issues with non-functioning daytime running lights
- Improves visibility and signaling with clear and amber lens components
- Ensures compliance with SAE/DOT lighting regulations
Installation Notes and Tips
When installing the TYC 20-6778-90-9 headlight assembly, ensure the vehicle is turned off and the battery is disconnected to avoid electrical hazards. This assembly is designed for the left side of Buick Lucerne models and should align with existing mounting points for a secure fit. Since halogen bulbs are included, no additional bulb purchases are necessary. Verify all electrical connections are secure before testing the lights.
Quality Assurance and Warranty
The TYC CAPA Certified headlight assembly 20-6778-90-9 complies with SAE and DOT standards, ensuring it meets safety and performance requirements. The CAPA certification further guarantees that this part matches OEM specifications for fit and function. Please refer to TYC’s warranty policy for specific coverage details.
| Brand | TYC |
| Part Number | 20-6778-90-9 |
| Position | CAPA Certified, Left |
| Bulbs Included | Yes |
| Lens Color | Clear, amber |
| Bulb Type | Halogen |
| Lens Material | Plastic |
| Housing Material | Plastic |
| Daytime Running Light Bulb Type | Halogen |
| High Beam Bulb Included | Yes |
| High Beam Bulb Type | Halogen |
| Low Beam Bulb Included | Yes |
| Low Beam Bulb Type | Halogen |
| Other Side | 20-6777-90-9 |
| Position | Left |
| Sae/dot Compliant | Yes |
This part fits 18 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2011 | Buick | Lucerne | CX | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2011 | Buick | Lucerne | Super | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2011 | Buick | Lucerne | CXL | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2010 | Buick | Lucerne | CXL Special Edition | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2010 | Buick | Lucerne | CXL | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2010 | Buick | Lucerne | CX | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2010 | Buick | Lucerne | Super | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2009 | Buick | Lucerne | Super | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2009 | Buick | Lucerne | CXL | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2009 | Buick | Lucerne | CX | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2008 | Buick | Lucerne | CX | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2008 | Buick | Lucerne | CXS | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2008 | Buick | Lucerne | CXL | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2008 | Buick | Lucerne | Super | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2007 | Buick | Lucerne | CXL | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2007 | Buick | Lucerne | CXS | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2006 | Buick | Lucerne | CXS | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
| 2006 | Buick | Lucerne | CXL | Sedan | Left | Other Side: 20-6777-90-9; CAPA Certified |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.