Replacement SET-REPG109901 Headlight Bracket Set Driver and Passenger Side Lower Mounting

The Replacement SET-REPG109901 is a matched pair of lower mounting headlight brackets designed to restore proper headlamp positioning on GMC Sierra trucks. This set includes both the driver-side (left) and passenger-side (right) lower mounting brackets, replacing OEM GM part numbers 15909903 and 15909904 respectively.

Proper headlight bracket integrity is essential for maintaining correct headlamp alignment. A bent, cracked, or broken lower mounting bracket can cause headlights to aim improperly, reducing nighttime visibility and potentially failing vehicle inspections. Replacing damaged brackets with new units restores factory-correct positioning and ensures secure lamp retention.

Key Features:

• Sold as a complete set — both driver-side (LH) and passenger-side (RH) lower mounting brackets included
• Direct replacement for GM OEM part numbers 15909903 (driver side) and 15909904 (passenger side)
• Partslink numbers: GM2508112 (driver side) and GM2509112 (passenger side)
• Lower mounting position — secures the bottom of the headlamp assembly to the front fascia structure
• Designed to restore factory headlamp alignment and fitment

OEM / Cross-Reference Part Numbers:

• GM OEM (Driver/LH): 15909903
• GM OEM (Passenger/RH): 15909904
• Partslink (Driver/LH): GM2508112
• Partslink (Passenger/RH): GM2509112