Depo 336-1121L-AC Headlight Assembly - Left

Headlight Assembly for Buick LaCrosse

This Depo headlight assembly is a left-side exterior lighting replacement for select Buick LaCrosse and Buick Allure applications. It is listed for halogen, composite headlamp setups and matches OE reference 20941383 for direct-fit replacement planning.

Key Features

• Brand: Depo
• Part number: 336-1121L-AC
• Left headlight assembly for exterior lighting repair
• Halogen, composite construction
• OE reference: 20941383
• Cross-reference: GM2502335C

Detailed Description

Depo 336-1121L-AC is a left headlight assembly for 2010-2013 Buick LaCrosse and 2010 Buick Allure models with halogen, composite headlamp equipment. This replacement headlamp is specified for the left side and follows the OE application identified by 20941383, making it a practical choice when replacing a damaged, cloudy, or non-functioning front lamp on a Buick LaCrosse. The part number 336-1121L-AC is also useful when verifying the correct lighting assembly before ordering.

What It Helps Fix

• Cracked or broken left headlight housing
• Dim or failed halogen headlamp output
• Moisture intrusion in the front lighting assembly
• Lens haze or physical damage affecting road visibility
• OE-matching replacement needs for Buick Allure and Buick LaCrosse

Installation Notes and Tips

Confirm halogen, composite headlamp configuration before installation. Verify left-side fitment against the vehicle’s existing lamp and OE reference 20941383. For best results, compare connector style, mounting points, and lamp shape with the removed assembly before final installation. Fits 2010 Buick Allure, left. Fits 2010-2013 Buick LaCrosse, left.

Quality Assurance

Depo manufactures replacement lighting components for OE-style fitment and application matching. This part cross-references GM2502335C for the same application.