$67,000 OBO

2025 GMC Sierra 2500 HD

4WD Regular Cab SLE · 11,300 Miles · Sterling Metallic

2025 GMC Sierra 2500 HD - Hero
Sierra exterior
Sierra exterior
Sierra rear
Sierra exterior
Sierra exterior
Sierra front
Baja Designs lights
Front bumper detail
FOX shocks
Engine badge
Four Wheel Campers
Wheels and tires
Rear quarter
AEV badge
GMC badge
Front wheel
Rear wheel
FOX shock detail
AEV snorkel
Snorkel and mirror
Alu-Cab awning
Interior
Interior
Door panel
Interior
Interior
Door panel
Camper popped
Camper side
Camper rear
Camper rear
Camper side
Dometic fridge
Tailgate
Camper interior
Camper sleeping area

Video Walkthrough

Overview

Powered by the 6.6-liter gasoline V8 and backed by the 10-speed Allison automatic transmission, this Sierra HD is equipped with the X31 Off-Road Package and has been extensively modified for long-term off-road and overland backcountry expeditions.

I've owned this truck since February 2025 and it has served me very well. Unfortunately, a life change forces sale.

Key Specs

Year / Make / Model
2025 GMC Sierra 2500 HD
Trim
SLE Regular Cab 4WD
Mileage
~11,300 miles
Engine
6.6L Gasoline V8
Transmission
10-Speed Allison Automatic
Drivetrain
4WD, Two-Speed Transfer Case
Exterior
Sterling Metallic
Wheels
AEV Salta XD 18"
Tires
Firestone Destination M/T2 35x12.5R18

Factory Options

X31 Off-Road Package
  • Hill Descent Control
  • Off-Road Suspension
  • Skid Plates
  • X31 Hard Badge
SLE Convenience Package
  • 10-Way Power Driver Seat
  • Dual-Zone Climate Control
  • LED Fog Lamps
  • LED Roof Marker Lamps
  • Manual Tilt/Telescoping Steering Column
Preferred Package
  • Adaptive Cruise Control
  • Bedliner, Spray-On
  • Hitch Guidance with Hitch View
  • In-Vehicle Trailering App
  • LED Cargo Bed Lighting
  • Rear-Window Defogger
  • Remote Start with Theft-Deterrent System
  • Trailering Mirrors (Heated, Power-Adjustable, Auto-Dimming, Turn Indicators)
SLE Heated Package
  • Heated Driver & Passenger Seats
  • Heated Steering Wheel
Sierra HD Pro Safety Plus Package
  • Rear Cross Traffic Alert
  • Trailer Side Blind Zone Alert
Additional Factory Options
  • 18" Machined Aluminum Wheels w/ Accents
  • MultiPro Tailgate
  • Two-Speed Transfer Case

Modifications

Built for long-term off-road and overland expeditions with most components from American Expedition Vehicles (AEV)—essentially a Regular Cab Sierra HD AEV Edition. The centerpiece is the Four Wheel Camper Project M. All work expertly performed by MULE Expedition Outfitters in Tualatin, Oregon.

VIN

1GT3UME76SF122876
Interested?
$67,000 OBO
Call or Text: 503-805-8790
Ask for Nick