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86544821 Genuine GM Headlamp Assembly For GMC Sierra 2500HD 6.6L V8

P/N: 86544821 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 86544821 headlamp assembly is a factory GM unit engineered to provide proper forward lighting and visibility for GMC Sierra 2500HD models. It delivers correct beam pattern, precise fitment, and full 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 86544821
Brand GM
Part Type Headlamp Assembly
Years 2024–2025
Position Front
Weight 13.65 Ib


Product Features

The 86544821 headlamp assembly is built to match factory performance and installation requirements:

  • Designed for GMC Sierra 2500HD applications
  • Maintains proper beam alignment and light distribution
  • Uses factory-style electrical connectors
  • Built to OEM specifications for accurate fit
  • Installs using original mounting points
  • Provides consistent lighting performance during normal operation

Application Notes

The 86544821 is intended for GMC Sierra 2500HD vehicles equipped with the factory headlamp system listed above. It mounts directly using factory hardware and connectors without modification.

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

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