85643373 Genuine GM Front Headlamp Assembly For Sierra HD 6.6L V8

Name: 85643373 Genuine GM Front Headlamp Assembly For Sierra HD 6.6L V8
Brand: GM
SKU: 85643373
Price: 1568.00 USD
Availability: InStock

P/N: 85643373 Manufactured by: GM

$1,568.00 - $1,568.00

$1,568.00

$1,568.00 - $1,568.00

$1,568.00

1 in Stock

Condition: New

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Description

The 85643373 front headlamp assembly is a GM factory lighting unit designed to provide proper beam pattern and visibility for Sierra HD models. It is built to match original mounting points, housing design, and electrical connections used in the factory lighting system.

Vehicle Compatibility

Year	Vehicle	Engine	Trims
2025	GMC Sierra 2500 HD	6.6L V8 Diesel, 6.6L V8 Gas	Pro, SLE
2025	GMC Sierra 3500 HD	6.6L V8 Diesel, 6.6L V8 Gas	Pro, SLE
2024	GMC Sierra 2500 HD	6.6L V8 Diesel, 6.6L V8 Gas	Pro, SLE
2024	GMC Sierra 3500 HD	6.6L V8 Diesel, 6.6L V8 Gas	Pro, SLE

General Specifications

Condition	New
Part Number	85643373
Brand	GM
Part Type	Front Headlamp Assembly
Years	2024–2025
Vehicle	GMC Yukon
Position	Right
Trim Compatibility	Pro, SLE
Lighting Configuration	Type 3

Product Features

The 85643373 headlamp assembly is designed to maintain proper lighting performance and alignment under factory conditions:

Produces correct beam pattern for road illumination and visibility
Housing design matches Sierra HD front-end configuration
Mounting points align with original factory brackets and supports
Electrical connectors match factory wiring harness
Lens and reflector geometry maintain proper light distribution
Supports consistent lighting performance during normal operation

Application Notes

The 85643373 headlamp assembly is used on GMC Sierra HD models equipped with the factory lighting system listed above and installs using standard mounting locations.

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