2024-2025 GMC Sierra AT4 Denali HD Upfitter Auxiliary Switches

GM 9L7 Upfitter Package

Looking to equip your high-trim GMC Sierra HD with factory-style auxiliary switches? This Genuine GM Upfitter Switch Kit is built specifically for 2024–2025 GMC Sierra AT4, AT4X, Denali HD, and Denali Ultimate trucks — delivering seamless OE integration and ready-to-use 12V switch outputs without any programming required.

The kit includes all GM factory components, designed for a clean, bolt-in install. Whether you're powering LED lights, air compressors, or work accessories, this bundle gives you reliable control from inside your factory console.

Features:

✔ Genuine GM Parts – Built for quality, durability, and a factory-perfect fit
✔ 5-Bank GM Auxiliary Switches – Power up to five accessories using the included outputs
✔ OEM Center Console Panel & Fuse Block – Clean OE-style integration
✔ Full Hardware Kit – Includes all fuses, fasteners, and wiring components
✔ FREE Shipping Options
✔ Free Installation Guide – Included for professional installation assistance

📌 Installation Note:
Per GM, the fuse block is designed to be zip-tied to the HVAC assembly — not the cleanest solution. For a more professional install, many customers add our Upfitter Switch Extension, which allows the fuse block to be bolted in securely.
👉 Use the Frequently Bought Together option above to add the switch kit and extension with one click.

Vehicle Fitment:

• 2024 GMC Sierra AT4 HD 2500 / 3500

• 2025 GMC Sierra AT4 HD 2500 / 3500

• 2024 GMC Sierra AT4X HD 2500 / 3500

• 2025 GMC Sierra AT4X HD 2500 / 3500

• 2024 GMC Sierra Denali HD 2500 / 3500

• 2025 GMC Sierra Denali HD 2500 / 3500

• 2024 GMC Sierra Denali Ultimate HD 2500 / 3500

• 2025 GMC Sierra Denali Ultimate HD 2500 / 3500

📌 VIN is required at checkout.