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85645544 Genuine GM Headlamp Assembly For GMC Sierra 2500HD 6.6L V8

P/N: 85645544 Manufactured by: GM
Original price $979.00 - Original price $979.00
Original price
$979.00
$979.00 - $979.00
Current price $979.00
1 in Stock
Condition: New
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Description

The 85645544 headlamp assembly is a factory GM unit designed to provide proper forward lighting and visibility on GMC Sierra 2500HD models. It ensures correct beam pattern, secure fitment, and compatibility with the original electrical system.

Vehicle Compatibility

Year Vehicle Engine Trims
2025 GMC Sierra 2500 HD 6.6L V8 - Diesel, 6.6L V8 - Gas Denali, Denali Ultimate, SLT
2025 GMC Sierra 3500 HD 6.6L V8 - Diesel, 6.6L V8 - Gas Denali, Denali Ultimate, SLT
2024 GMC Sierra 2500 HD 6.6L V8 - Diesel, 6.6L V8 - Gas Denali, Denali Ultimate, SLT
2024 GMC Sierra 3500 HD 6.6L V8 - Diesel, 6.6L V8 - Gas Denali, Denali Ultimate, SLT


General Specifications

Condition New
Part Number 85645544
Brand GM
Part Type Headlamp Assembly
Years 2024–2025
Position Front
Weight 13.65 Ib


Product Features

The 85645544 headlamp assembly is built to match factory performance and installation requirements:

  • Designed for GMC Sierra 2500HD applications
  • Maintains original headlamp alignment and beam pattern
  • Uses factory-style electrical connections
  • Built to OEM dimensions for proper installation
  • Matches original mounting points without modification
  • Provides consistent lighting output under normal driving conditions

Application Notes

The 85645544 is intended for GMC Sierra 2500HD vehicles equipped with the factory headlamp system listed above. It installs using original mounting hardware and factory connectors.

Always verify part number, vehicle year, and lighting configuration before installation.

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