Description
The 86546577 Genuine GM Front Headlamp Assembly is an exterior lighting component specified for compatible 2021–2024 GMC Yukon and Yukon XL vehicles equipped with the corresponding factory headlamp configuration, providing forward roadway illumination and supporting visibility during nighttime driving and reduced ambient lighting conditions. Installed within the designated front body lighting arrangement, the assembly directs light toward the roadway to assist with identifying lane boundaries, approaching road features, and surrounding obstacles while maintaining the specified headlamp installation position and integration with the vehicle's exterior lighting system.
Vehicle Compatibility
| Year |
Vehicle |
Engine |
Trims |
| 2024 |
GMC Yukon |
5.3L V8 Gas |
AT4 |
| 2024 |
GMC Yukon |
6.2L V8 Gas |
AT4 |
| 2024 |
GMC Yukon |
3.0L L6 Diesel |
Denali |
| 2024 |
GMC Yukon |
6.2L V8 Gas |
Denali |
| 2024 |
GMC Yukon |
3.0L L6 Diesel |
Denali Ultimate |
| 2024 |
GMC Yukon |
6.2L V8 Gas |
Denali Ultimate |
| 2024 |
GMC Yukon XL |
5.3L V8 Gas |
AT4 |
| 2024 |
GMC Yukon XL |
6.2L V8 Gas |
AT4 |
| 2024 |
GMC Yukon XL |
3.0L L6 Diesel |
Denali |
| 2024 |
GMC Yukon XL |
6.2L V8 Gas |
Denali |
| 2024 |
GMC Yukon XL |
3.0L L6 Diesel |
Denali Ultimate |
| 2024 |
GMC Yukon XL |
6.2L V8 Gas |
Denali Ultimate |
| 2023 |
GMC Yukon |
5.3L V8 Gas |
AT4 |
| 2023 |
GMC Yukon |
6.2L V8 Gas |
AT4 |
| 2023 |
GMC Yukon |
3.0L L6 Diesel |
Denali |
| 2023 |
GMC Yukon |
6.2L V8 Gas |
Denali |
| 2023 |
GMC Yukon |
3.0L L6 Diesel |
Denali Ultimate |
| 2023 |
GMC Yukon |
6.2L V8 Gas |
Denali Ultimate |
| 2023 |
GMC Yukon XL |
5.3L V8 Gas |
AT4 |
| 2023 |
GMC Yukon XL |
6.2L V8 Gas |
AT4 |
| 2023 |
GMC Yukon XL |
3.0L L6 Diesel |
Denali |
| 2023 |
GMC Yukon XL |
6.2L V8 Gas |
Denali |
| 2023 |
GMC Yukon XL |
3.0L L6 Diesel |
Denali Ultimate |
| 2023 |
GMC Yukon XL |
6.2L V8 Gas |
Denali Ultimate |
| 2022 |
GMC Yukon |
5.3L V8 Gas |
AT4 |
| 2022 |
GMC Yukon |
6.2L V8 Gas |
AT4 |
| 2022 |
GMC Yukon |
3.0L L6 Diesel |
Denali |
| 2022 |
GMC Yukon |
6.2L V8 Gas |
Denali |
| 2022 |
GMC Yukon XL |
5.3L V8 Gas |
AT4 |
| 2022 |
GMC Yukon XL |
6.2L V8 Gas |
AT4 |
| 2022 |
GMC Yukon XL |
3.0L L6 Diesel |
Denali |
| 2022 |
GMC Yukon XL |
6.2L V8 Gas |
Denali |
| 2021 |
GMC Yukon |
5.3L V8 Gas |
AT4 |
| 2021 |
GMC Yukon |
3.0L L6 Diesel |
Denali |
| 2021 |
GMC Yukon |
6.2L V8 Gas |
Denali |
| 2021 |
GMC Yukon XL |
5.3L V8 Gas |
AT4 |
| 2021 |
GMC Yukon XL |
3.0L L6 Diesel |
Denali |
| 2021 |
GMC Yukon XL |
6.2L V8 Gas |
Denali |
General Specifications
| Condition |
New |
| Part Number |
86546577 |
| Brand |
GM |
| Part Type |
Front Headlamp Assembly |
| Years |
2021–2024 |
| Vehicle Applications |
GMC Yukon / GMC Yukon XL |
| Engine Configuration |
3.0L L6 Diesel / 5.3L V8 Gas / 6.2L V8 Gas |
| Trims |
AT4 / Denali / Denali Ultimate |
| Position |
Front |
| Part Description |
Headlamp Assembly; Headlamp Assembly - Front |
| System Application |
Front Exterior Lighting |
| Fitment Type |
Direct Replacement |
Product Features
The 86546577 Front Headlamp Assembly provides forward roadway illumination through the corresponding exterior lighting configuration specified for compatible GMC Yukon and Yukon XL vehicles:
-
Projects light toward the roadway ahead to support driver visibility during nighttime and reduced-light driving conditions
-
Establishes the designated front lighting position within the original Yukon exterior headlamp installation arrangement
-
Contributes to forward beam distribution for observing road boundaries, surface changes, and nearby stationary obstacles
-
Accommodates the specified front body mounting configuration when surrounding panels and attachment provisions correspond
-
Supports the vehicle's exterior lighting operation through compatible headlamp electrical connections and control equipment
-
Maintains the intended headlamp alignment reference when installed and adjusted according to applicable vehicle service procedures
Application Notes
The 86546577 Front Headlamp Assembly is intended for compatible 2021–2024 GMC Yukon and Yukon XL vehicles equipped with the corresponding factory front headlamp system, including the AT4, Denali, and Denali Ultimate configurations identified in the supplied compatibility information. Inspect the existing headlamp mounting points, electrical connectors, adjacent body components, and original lighting equipment before installation, then follow applicable GM service procedures for headlamp positioning and beam alignment.
Always verify the part number, vehicle model, production year, trim level, original headlamp configuration, and electrical compatibility before installation.