Dorman 1592017 Headlight Assembly - Left

Dorman 1592017 Left Headlight Assembly for 4Runner

This Dorman headlight assembly is a direct replacement for the left side on 2003-2005 Toyota 4Runner models. It is reverse-engineered to match the original headlight’s fit, appearance, and function while offering a practical alternative to dealership replacement.

• Fits 2003-2005 Toyota 4Runner, left
• OE-style replacement headlight assembly for exterior lighting repair
• Clear lens with plastic lens and housing construction
• Halogen bulb technology with bulbs included
• 12.8-volt electrical specification
• Street legal for road use when properly installed

OE-Style Replacement Details

Built for the 2003, 2004, and 2005 Toyota 4Runner, this Dorman 1592017 headlight assembly is made to match the stock unit on the vehicle’s left side. The clear lens and halogen setup support original-style lighting performance, while the plastic housing and lens help keep the assembly lightweight and serviceable. This part cross-references TYC 20-6406-00 for the same application.

Common Problems This Part Can Address

• Cracked or damaged left headlight assembly
• Clouded or worn exterior lens affecting light output
• Failed halogen headlight components
• Water intrusion from a compromised housing
• Restoring proper front-end lighting after collision repair

Installation Notes and Tips

Verify left-side placement before installation and compare the connector, mounting points, and lens shape to the original assembly. This Dorman 1592017 is intended for 2003-2005 Toyota 4Runner applications, so confirm vehicle year and trim details against the existing part before final fitment. Bulbs are included, which can simplify the replacement process, but proper aiming should still be checked after installation.

Quality Assurance

Dorman reverse-engineers this replacement headlight assembly to match the original equipment design on specific vehicles. That approach helps deliver an OE-style fit and function for 2003-2005 Toyota 4Runner left headlight replacement needs.