About Product
This 2023 GMC Sierra 1500 AT4 4×4 is a highly equipped, low-mileage, and tastefully upgraded example of GMC’s off-road-oriented full-size pickup, finished in Summit White over a Jet Black and Kalahari leather interior.
The attached Carfax report shows no accidents or mileage discrepancies, confirming a clean ownership history. This Sierra remains in excellent condition and benefits from premium factory equipment plus professional suspension upgrades.
From the factory, the AT4 trim combines rugged off-road capability with luxury and technology, including a Bose sound system, heated and ventilated seats, adaptive cruise control, and GMC’s innovative MultiPro tailgate.
Enhancements include a FOX 2.5 suspension system with remote reservoirs, Dirt King upper control arms, Deaver progressive rear springs, Method Race Wheels, and Toyo Open Country A/T III tires, giving this Sierra a commanding stance and improved ride quality both on and off-road.
Power is provided by GMC’s refined 3.0-liter second-generation Duramax LZ0 inline-6 turbodiesel, producing 305 horsepower and 495 lb-ft of torque, mated to a 10-speed automatic transmission and 4WD system for strong torque delivery and towing performance.
Top Features
3.0L Duramax LZ0 Turbo-Diesel I6 (305 hp / 495 lb-ft)
10-Speed Automatic Transmission
Four-Wheel Drive (4WD)
AT4 Premium Package
Rear power-sliding window, adaptive cruise control, high-clearance steps, universal home remote
Auto-Locking Rear Differential
Leather Upholstery
Heated & Ventilated Front Seats
Heated Rear Seats
Heated Steering Wheel
Dual-Zone Automatic Climate Control
GMC Premium Infotainment System (13.4-inch Color Touchscreen)
Bose Premium Sound System
Spray-On Bedliner
GMC MultiPro Tailgate
Dual Exhaust with Premium Tips
LED Exterior Lighting
Trailer Brake Controller
Keyless Open & Remote Start
Modifications
Suspension Upgrades
FOX 2.5 Front Coilovers with Remote Reservoirs & Dual Speed Compression (DSC)
FOX 2.5 Rear Shocks with Remote Reservoirs & DSC
Dirt King Ball Joint Upper Control Arms
Deaver Progressive Rear Leaf Springs
Wheels & Tires
17-inch Method MR305 Wheels
305/70 Toyo Open Country A/T III Tires
Exterior
BAK Revolver X4s Hard Rolling Tonneau Cover
Known Flaws
Minor rock chips on front end
Small paint chip on exhaust cutout (professionally touched up)
Recent Service History
March 2024 (10,553 mi): Engine oil changed, tires rotated
July 2023: Suspension kit and aftermarket wheels installed
June 2023: Engine oil changed, multi-point inspection performed
March 2024: Inspection performed, alignment checked, tires checked
October 2023 (4,477 mi): Oil & filter changed, maintenance inspection completed, tires rotated
Other Items Included in Sale
2 Keys
Owner’s Manuals
Digital Window Sticker
Service Records
Spare Tire
