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85121987 Genuine GM Front Headlamp Assembly For GMC Sierra 1500 2.7L 3.0L 5.3L 6.2L

P/N: 85121987 Manufactured by: GM
Original price $1,586.00 - Original price $1,586.00
Original price
$1,586.00
$1,586.00 - $1,586.00
Current price $1,586.00
2 in Stock
Condition: New
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Description

The 85121987 front headlamp assembly is a GM factory lighting unit designed for GMC Sierra 1500 and Sierra 1500 Limited models equipped with the specified engine options. It contains the forward lighting system within a sealed housing and mounts directly to the front body structure using original attachment points.

Vehicle Compatibility

Year Vehicle Engine Trims
2026 GMC Sierra 1500 3.0L L6 Diesel, 5.3L V8 Gas, 6.2L V8 Gas Denali, Denali Ultimate, SLT
2025 GMC Sierra 1500 2.7L L4 Gas, 3.0L L6 Diesel, 5.3L V8 Gas, 6.2L V8 Gas Denali, Denali Ultimate, SLE, SLT
2024 GMC Sierra 1500 2.7L L4 Gas, 3.0L L6 Diesel, 5.3L V8 Gas, 6.2L V8 Gas Denali, Denali Ultimate, SLE, SLT
2023 GMC Sierra 1500 2.7L L4 Gas, 3.0L L6 Diesel, 5.3L V8 Gas, 6.2L V8 Gas Denali, Denali Ultimate, SLE, SLT
2022 GMC Sierra 1500 3.0L L6 Diesel, 5.3L V8 Gas, 6.2L V8 Gas Denali, Denali Ultimate, SLT
2022 GMC Sierra 1500 Limited 3.0L L6 Diesel, 5.3L V8 Gas, 6.2L V8 Gas Denali, SLT


General Specifications

Condition New
Part Number 85121987
Brand GM
Part Type Front Headlamp Assembly
Years 2022–2026
Position Right
Weight 12.90 lb
Trim Compatibility SLT, Denali, Denali Series


Product Features

The 85121987 front headlamp assembly is built to match factory performance and installation requirements:

  • Designed for proper forward illumination on Sierra 1500 models
  • Housing supports original lighting components and internal configuration
  • Installs directly to factory mounting brackets on the front structure
  • Maintains correct beam alignment and light output pattern
  • Connects with the vehicle’s original wiring and electrical system
  • Built to match factory housing dimensions and fitment specifications

Application Notes

The 85121987 front headlamp assembly is intended for GMC Sierra 1500 and Sierra 1500 Limited vehicles equipped with the factory lighting system listed above. Proper installation ensures correct alignment and consistent lighting performance.

Always verify part number, engine configuration, trim level, and lighting system before installation.

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