TYC 20-9142-00 Headlight Assembly - Left

Headlight Assembly for GMC Terrain

This TYC headlight assembly is a direct-fit exterior lighting replacement for the left side of select GMC Terrain models. Built as a complete assembly with the bulb included, it supports a straightforward repair for damaged, cloudy, or non-functioning headlamp units on 2010-2015 GMC Terrain applications.

Key Features

• TYC Regular line headlight assembly for exterior lighting repair
• Fits the left side on 2010-2015 GMC Terrain
• Complete assembly for a full headlamp replacement
• Halogen bulb type with bulb included
• Part number 20-9142-00 for accurate ordering and lookup
• Cross-reference: Partslink GM2502350 for the same application

Product Details

The TYC Regular product line focuses on practical replacement lighting for everyday repair work. This headlight assembly, part number 20-9142-00, is built for the left side of the GMC Terrain and matches the listed fitment for 2010-2015 model years. It uses a halogen bulb type and arrives as a complete assembly, making it a direct replacement option when the original headlamp housing or lens is no longer performing properly. This part also cross-references General Motors 23319179 and GMC 84791974 for the same application.

Common Repair Uses

• Restoring forward lighting after a cracked or damaged headlight housing
• Replacing a dim, cloudy, or failed left headlamp on a GMC Terrain
• Correcting moisture intrusion or lens deterioration in the original assembly
• Returning proper beam output for night driving and visibility
• Replacing a worn exterior lighting unit with the correct OE-style fitment

Installation Notes

Fits 2010-2015 GMC Terrain, left. Verify the vehicle’s existing bulb style and connector layout before installation. Compare the replacement unit to the original headlamp assembly to confirm alignment points and mounting locations match the vehicle. Because this is a complete assembly, it is suited for replacing the full left headlight unit rather than individual internal components.

Quality Assurance

TYC Regular replacement lighting is built for application-specific fitment and dependable service in routine repair use. Part number 20-9142-00 is cataloged for the listed GMC Terrain fitment and cross-references OE and Partslink numbers for identification accuracy.