TYC 20-5421-00 Headlight Assembly - Right

TYC Headlight Assembly for GMC Sonoma and Jimmy

Restore front-end lighting performance with this TYC Regular headlight assembly, part number 20-5421-00. It is a right-side halogen headlight assembly with a plastic lens and plastic housing, built for vehicles that use a fog light-equipped headlamp setup.

Compatible with 1998-2004 GMC Sonoma, right, and 1998-2001 GMC Jimmy, right. This TYC 20-5421-00 is SAE/DOT compliant and includes the bulb type specified for the application.

Key Features

• TYC Regular headlight assembly for exterior lighting repair
• Right-side fitment for GMC Sonoma and GMC Jimmy applications
• Halogen bulb type with bulbs included
• Plastic lens and plastic housing construction
• SAE/DOT compliant for road-use requirements
• Remarks note fog light-equipped applications
• Cross-reference: GMC 16526226 and Partslink GM2503173

Detailed Description

The TYC 20-5421-00 headlight assembly is built for direct replacement on the right side of select GMC Sonoma and GMC Jimmy models. The halogen design supports standard exterior lighting service, while the plastic lens and housing provide a lightweight OE-style construction. The TYC Regular product line focuses on practical replacement lighting for common repair needs, making this assembly a straightforward option when the original headlamp is damaged, cloudy, or no longer performing as intended.

This part cross-references GMC 16526226 and Partslink GM2503173 for the same application. Use part number 20-5421-00 when verifying the correct right-side headlight assembly for your vehicle.

Common Issues This Part Can Address

• Cracked or broken right headlight lens
• Moisture intrusion in the headlamp housing
• Dim, yellowed, or worn exterior lighting output
• Damage from road debris or minor front-end impact
• Failed headlight assembly on fog light-equipped vehicles

Installation Notes and Tips

Confirm right-side placement before installation and compare the connector, mounting points, and fog light-equipped configuration to the original assembly. Verify bulb type and aim the headlamp after installation to maintain proper forward visibility and road compliance. Always match the replacement to the vehicle’s existing lighting setup before final fitment.

Quality Assurance

This headlight assembly is SAE/DOT compliant and built to meet standard exterior lighting requirements for the listed applications. TYC Regular parts are positioned as practical replacement components for routine lighting repair.