Dorman 42400 Headlight Motor Gear - Left or Right

Dorman 42400 Headlight Motor Gear

Dorman 42400 is a specific-fit headlight motor gear for vehicles with pop-up headlight systems. It is built from white nylon to match the original gear’s fit and function, with a focus on durable, reliable operation in the headlight motor assembly.

• Specific-fit replacement headlight motor gear
• White nylon construction for OE-style material selection
• Designed to match original fit and function
• Direct replacement for the headlight motor gear in the assembly
• Compatible with left or right headlight motor applications, depending on vehicle

Vehicle Fitment

• Fits 1997-2004 Chevrolet Corvette, left.
• Fits 1997-2004 Chevrolet Corvette, right.
• Fits 1993-2002 Pontiac Firebird, left.
• Fits 1993-2002 Pontiac Firebird, right.
• Fits 1993-1996 Saturn SC1, left.
• Fits 1993-1996 Saturn SC1, right.
• Fits 1993-1996 Saturn SC2, left.
• Fits 1993-1996 Saturn SC2, right.
• Fits 1991-1992 Saturn SC, left.
• Fits 1991-1992 Saturn SC, right.

Detailed Description

This Dorman headlight motor gear is engineered as a direct replacement for the original gear used in specified Chevrolet Corvette, Pontiac Firebird, and Saturn pop-up headlight systems. The nylon construction helps restore proper gear engagement inside the motor, supporting consistent headlight movement and dependable operation. Dorman 42400 is a practical repair part for worn or damaged headlight motor gears when the rest of the assembly remains serviceable.

This part cross-references SKP SK42400 for the same application.

Common Problems It Can Help Solve

• Headlights that stop raising or lowering correctly
• Grinding or slipping inside the headlight motor
• Broken or stripped gear teeth in the motor assembly
• Uneven or intermittent pop-up headlight movement
• Restoration of left or right headlight operation on Corvette, Firebird, and Saturn models

Installation Notes and Tips

Inspect the headlight motor housing, linkage, and related electrical components before installation. Transfer only the parts required by the vehicle design, and verify smooth gear movement after assembly. Because mounting hardware is not included, reuse the original hardware if it is serviceable and correct for the application.

Quality Assurance

Dorman designs this headlight motor gear to match the fit and function of the original component on the listed vehicles. The nylon material and application-specific design support reliable performance in the headlight motor assembly.