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84989878 Genuine GM Headlamp Assembly For GMC Sierra 1500 2.7L 5.3L

P/N: 84989878 Manufactured by: GM
Original price $1,440.00 - Original price $1,440.00
Original price
$1,440.00
$1,440.00 - $1,440.00
Current price $1,440.00
2 in Stock
Condition: New
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Description

The 84989878 headlamp assembly is a GM factory lighting component designed for GMC Sierra 1500 models to maintain proper forward visibility and lighting performance. It provides correct beam alignment, secure installation, and reliable operation with the original electrical system.

Vehicle Compatibility

Year Vehicle Engine Trims
2022 GMC Sierra 1500 2.7L L4 - Gas, 3.0L L6 - Diesel, 5.3L V8 - Gas Elevation, Pro, SLE
2022 GMC Sierra 1500 Limited 2.7L L4 - Gas, 3.0L L6 - Diesel, 5.3L V8 - Flex, 5.3L V8 - Gas Elevation, Pro, SLE
2021 GMC Sierra 1500 2.7L L4 - Gas, 3.0L L6 - Diesel, 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas Base, Elevation, SLE
2020 GMC Sierra 1500 2.7L L4 - Gas, 3.0L L6 - Diesel, 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas Base, Elevation, SLE
2019 GMC Sierra 1500 2.7L L4 - Gas, 4.3L V6 - Gas, 5.3L V8 - Flex, 5.3L V8 - Gas Base, Elevation, SLE


General Specifications

Condition New
Part Number 84989878
Brand GM
Part Type Headlamp Assembly
Years 2019–2022
Position Left
Weight 10.28 Ib
Fitment Type Direct Replacement


Product Features

The 84989878 headlamp assembly is built to match factory performance and installation requirements:

  • Engineered for GMC Sierra 1500 factory lighting configuration
  • Maintains proper beam focus and road illumination
  • Connects directly to OEM wiring harness
  • Built to original housing dimensions for accurate fit
  • Installs using factory mounting locations
  • Ensures stable lighting output during normal driving conditions

Application Notes

The 84989878 is intended for GMC Sierra 1500 vehicles equipped with the factory headlamp system listed above. It installs directly using original mounting points and standard electrical connections.

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

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