TYC 20-6578-00 Headlight Assembly - Left

Left Headlight Assembly for Toyota Tacoma

This TYC headlight assembly is a direct-fit exterior lighting replacement for the left side of 2005-2011 Toyota Tacoma models without the Sport Package. It includes the bulb type specified for the application and arrives as a complete assembly for a straightforward repair.

Key Features

• Fits 2005-2011 Toyota Tacoma, left
• Complete headlight assembly for the left side
• Halogen bulb type
• Bulbs included
• SAE/DOT compliant
• TYC Regular product line
• Part number 20-6578-00

Product Details

TYC 20-6578-00 is a left headlight assembly built for Toyota Tacoma trucks in the 2005-2011 range without the Sport Package. As part of the TYC Regular line, this exterior lighting replacement is made for direct application use and follows the listed OE-style fitment for the Tacoma Type 2 configuration. The assembly includes bulbs and uses a halogen bulb type, making it a practical choice when restoring forward lighting performance on a Toyota Tacoma.

This part cross-references Partslink TO2502157 and Toyota 81150-04163 for the same application. The part number 20-6578-00 is also useful when verifying the correct left headlight assembly before ordering.

Common Repair Uses

• Restores a damaged or broken left headlight assembly
• Replaces a cloudy or worn exterior lamp housing
• Addresses reduced forward lighting output on a Toyota Tacoma
• Corrects fitment issues after collision repair
• Returns the vehicle to a compliant lighting setup

Installation Notes

Fits 2005-2011 Toyota Tacoma, left, without Sport Package. Confirm the vehicle uses the Type 2 configuration and compare the existing lamp to the OE reference before installation. The assembly is supplied as a complete unit, and the halogen bulb type is specified for this application. Verify connector condition and aim the headlight after installation to maintain proper road illumination.

Quality Assurance

This TYC Regular headlight assembly is SAE/DOT compliant and built to match the listed application requirements for the Toyota Tacoma. Part number 20-6578-00 provides a reliable reference for fitment verification and replacement selection.