TYC 20-9874-00 Headlight Assembly - Left

Headlight Assembly for Subaru Forester

This TYC headlight assembly is a direct-fit exterior lighting replacement for the 2017-2018 Subaru Forester, left side. Built with a plastic lens and plastic housing, it includes the bulbs needed for the assembly and supports halogen lighting output for the low beam, high beam, park lamp, front signal light, and front side marker light.

Key Features

• Fits 2017-2018 Subaru Forester, left
• TYC Regular line headlight assembly, part number 20-9874-00
• Bulbs included for a complete lighting assembly
• Halogen bulb type with H11/HB3 low beam specification
• Plastic lens and plastic housing construction
• Includes front side marker, front signal, park lamp, high beam, and low beam bulbs
• Cross-references Subaru 84001SG291 and Partslink SU2502158 for the same application

Detailed Description

TYC 20-9874-00 is a left headlight assembly for the Subaru Forester, engineered for 2017-2018 model years. The TYC Regular product line focuses on OE-style replacement lighting, and this assembly is configured with halogen bulbs throughout, including the low beam H11/HB3 setup. The unit also includes the front side marker light bulb, front signal light bulb, park lamp bulb, and both high beam and low beam bulbs, making it a practical replacement for damaged, cloudy, or non-functioning factory lighting on a Subaru Forester.

Use this headlight assembly when replacing a cracked lens, restoring nighttime visibility, or correcting a failed exterior lamp on the driver-side front corner. The part number 20-9874-00 is also referenced by Subaru 84001SG291 and Partslink SU2502158.

What This Part Helps Address

• Broken or cracked left headlight lens
• Dim, failed, or inconsistent halogen lighting
• Moisture intrusion from a damaged headlamp assembly
• Reduced visibility from worn exterior lighting components
• Failed front side marker, signal, park, high beam, or low beam lighting

Installation Notes and Tips

Verify left-side placement before installation and confirm the connector and bulb configuration match the vehicle’s original setup. Transfer any required vehicle-specific mounting points or trim pieces from the original assembly if applicable, and test all lighting functions after installation. For best results, inspect the opposite headlamp on the Subaru Forester at the same time so both sides maintain consistent appearance and output.

Quality Assurance

TYC Regular lighting products are built as OE-style replacement parts for direct vehicle application. This headlight assembly is designed around the listed fitment for the 2017-2018 Subaru Forester, left side, and follows the specified halogen bulb configuration for accurate replacement selection.