Dorman 1590994 Headlight Assembly - Left

OE-Style Left Headlight for Tacoma

This Dorman headlight assembly is a direct replacement for the left side on select 2005-2011 Toyota Tacoma models. It is reverse-engineered to match the original headlamp’s fit, appearance, and function, making it a practical option for restoring nighttime visibility and front-end lighting performance.

Part number 1590994 is built with a clear lens, plastic housing, and halogen bulb technology for 12-volt operation. It includes bulbs and is intended for Tacoma owners looking for an OE-style replacement without returning to the dealership.

Key Features

• Fits 2005-2011 Toyota Tacoma, left
• OE-style replacement headlight assembly for the driver side
• Clear lens with plastic lens and housing construction
• Halogen bulb technology with 12-volt electrical design
• Bulbs included for a complete headlight assembly replacement
• Direct replacement for part number 1590994

Detailed Description

Dorman 1590994 is a replacement headlight assembly engineered for specific Toyota Tacoma applications. It is designed to match the stock headlight on 2005, 2006, 2007, 2008, 2009, 2010, and 2011 Tacoma models on the left side, helping maintain original equipment appearance and lighting layout. The assembly uses a clear lens and halogen bulb setup, with plastic housing and lens materials selected for the application.

This part cross-references TYC 20-6578-00 for the same application. If you are searching for a 2005-2011 Toyota Tacoma left headlight assembly, Tacoma driver-side headlamp replacement, or Dorman 1590994 headlight assembly, this unit matches those fitment needs directly.

Common Problems This Part Can Address

• Cracked, cloudy, or damaged left headlight lens
• Dim or inconsistent forward lighting from a worn assembly
• Water intrusion or housing deterioration in the original lamp
• Restoring proper front-end lighting after collision damage
• Replacing a failed Tacoma driver-side headlight assembly

Installation Notes and Tips

Verify left-side fitment before installation and confirm the vehicle is a 2005-2011 Toyota Tacoma. Compare the connector, bulb layout, and mounting points to the original assembly before removal. Transfer any vehicle-specific aiming or adjustment settings as needed after installation, and test all lighting functions before returning the vehicle to service.

Quality Assurance

This Dorman replacement headlight assembly is reverse-engineered to follow the original headlamp’s fit and performance profile for the listed Tacoma applications. It is built as an OE-style replacement for direct use on the specified vehicle range.