TYC 20-6978-00 Headlight Assembly - Left

Overview of TYC Regular Left Headlight Assembly

The TYC Regular left headlight assembly (part number 20-6978-00) is designed specifically for select Mercedes-Benz models, including the E63 AMG, E320, E350, and E550. This complete headlight assembly features halogen bulbs and clear lenses to ensure reliable exterior lighting performance.

• Complete headlight assembly with bulbs included
• Clear PC plastic lens and durable PP plastic housing
• Halogen bulb types: H7 for low and high beams, 3457A for front signal light
• Includes front signal light bulb and both high and low beam bulbs
• Left side position, compatible with Mercedes-Benz E63 AMG, E320, E350, and E550 models
• SAE/DOT compliant for road safety standards

Detailed Product Features and Specifications

This TYC Regular headlight assembly (20-6978-00) is engineered with a clear polycarbonate (PC) plastic lens that offers resistance to impact and weathering, paired with a polypropylene (PP) plastic housing for structural durability. The assembly includes halogen bulbs for the low beam and high beam (both H7 type), as well as the front signal light bulb (halogen 3457A), providing a complete lighting solution. The absence of included hardware means installation will require reusing existing mounting components. This left-side headlight assembly is designed for Mercedes-Benz E63 AMG, E320, E350, and E550 models from 06/30/2006 onward, ensuring proper fit and function.

About the TYC Regular Product Line

The TYC Regular product line offers reliable replacement lighting components that meet OEM standards for fit and function. This line focuses on providing complete assemblies with included bulbs, making it a practical choice for those seeking a straightforward replacement without additional parts. The TYC Regular headlight assemblies are designed to comply with SAE and DOT regulations, ensuring they meet safety and performance requirements for exterior vehicle lighting.

Common Applications and Problem Resolution

• Replacement for cracked or damaged headlight lenses
• Restoring dim or non-functioning halogen bulbs in low or high beams
• Fixing malfunctioning front signal lights on the left side
• Upgrading worn or faded headlight assemblies to improve visibility
• Ensuring compliance with vehicle lighting safety standards

Installation Notes and Tips

Installation of the TYC Regular left headlight assembly (20-6978-00) requires removal of the existing headlight unit and reuse of original mounting hardware, as no new hardware is included. Care should be taken to properly connect the halogen bulbs and ensure all electrical connections are secure. It is recommended to verify bulb alignment and headlight aim after installation to maintain optimal lighting performance and road safety.

Quality Assurance and Warranty Information

This headlight assembly is SAE and DOT compliant, meeting regulatory standards for exterior automotive lighting. TYC products typically come with a limited warranty covering defects in materials and workmanship; please refer to the specific warranty terms provided with the product for detailed coverage information.