Used 2025 GMC Sierra 3500HD AT4 Crew Cab
4x4
Vehicle Summary
Mileage
Miles
Performance
HP
Torque
Vehicle Description
2025 GMC SIERRA 3500HD AT4 4X4 CREW CAB
CLEAN TITLE
JET BLACK WITH KALAHARI ACCENTS
HEATED FRONT SEATS
VENTILATED FRONT SEATS
HEATED REAR SEATS
POWER DRIVER SEAT
POWER PASSENGER SEAT
DRIVER AND PASSENGER ADJUSTABLE LUMBAR
SEAT MEMORY
HEADS-UP DISPLAY
NAVIGATION SYSTEM
PREMIUM SOUND SYSTEM
ADAPTIVE CRUISE CONTROL
AERIAL VIEW DISPLAY SYSTEM
FRONT COLLISION WARNING
FRONT COLLISION MITIGATION
LANE DEPARTURE WARNING
CROSS-TRAFFIC ALERT
REAR PARKING AID
AT4 PREMIUM PLUS PACKAGE
TECHNOLOGY PACKAGE
X31 OFF-ROAD PACKAGE
GOOSENECK / 5TH WHEEL PREP PACKAGE
PROGRADE TRAILERING SYSTEM WITH HITCH GUIDANCE
POWER RETRACTABLE RUNNING BOARDS
6.6L V8 DIESEL TURBOCHARGED
10-SPEED AUTOMATIC TRANSMISSION
FOUR-WHEEL DRIVE
This 2025 GMC Sierra 3500HD AT4 4X4 Crew Cab brings together Duramax diesel power, AT4 off-road capability, premium trailering technology, and upscale heavy-duty comfort in a highly equipped one-ton truck.
Call or text to confirm availability and schedule an appointment. Mountain West Auto Group offers a wide selection of new and pre-owned vehicles, flexible financing options for qualified buyers, and trade-in opportunities to help make your next purchase simple. All advertised prices exclude tax, title, and registration. Equipment and features should be independently verified by the buyer prior to purchase. Mountain West Auto Group — Built for Your Adventure.
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Factory Warranty
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Basic warranty
36 month/36,000 miles
*Confirm any warranty information with dealer before purchase.Powertrain warranty
60 month/100,000 miles (FLT)
*Confirm any warranty information with dealer before purchase.Corrosion perforation warranty
72 month/100,000 miles
*Confirm any warranty information with dealer before purchase.Roadside warranty
60 month/100,000 miles (FLT)
*Confirm any warranty information with dealer before purchase.
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Mountain West Auto Group
Love what you drive. Our vehicles will guarantee you enjoy your driving experience every day with comfort, style, advanced technology, and reliable performance that keeps you confident on every journey.
We promise your shopping experience will be unlike any other dealership. Our dealership culture feels like a close-knit family, where staff build genuine connections, creating an inviting atmosphere that makes people excited to do business with us and return time and time again.
We work directly with dozens of trusted financial institutions to carefully compare options and guarantee you the best possible rate, ensuring you save money and get a financing plan that fits your budget perfectly.
Vehicle Features
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Interior
- Ventilated driver and front passenger seats
- Heated steering wheel
- Heated driver and front passenger seats
- Heated rear seats
- Leather front seat upholstery
- Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
- Dual-zone front climate control
- Automatic climate control
- Manual tilting steering wheel
- Manual telescopic steering wheel
- Vinyl rear seat upholstery
- Rear under seat climate control ducts
- Rear console climate control ducts
- Bucket front seats
- Driver seat with 8-way directional controls
- Front seat center armrest
- Front passenger seat with 8-way directional controls
- Driver seat with 2-way power lumbar
- Front passenger seat with 2-way power lumbar
- Leatherette steering wheel
- Split-bench rear seat
- Fold-up rear seat cushion
- 60-40 folding rear seats
- Rear seat center armrest
- Seating capacity: 5
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Exterior
- Hitch Guidance with Hitch View vehicle to trailer hitching assist
- Trailer light test
- Trailer light malfunction warning
- Trailer theft alarm
- Trailer brake controller
- Trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Power extendable trailer mirrors
- Trailer hitch light
- Wheel hub covers
- Exterior mirror LED spot lights
- 20 x 8.5-inch front and rear black aluminum wheels
- LT275/65SR20 AT BSW front and rear tires
- Trailer wiring harness
- Class IV tow rating
- Trailer hitch
- 3 underbody skid plates
- Spray-in pickup bed liner
- Pickup bed-rail protectors
- Full-size spare tire with steel wheel
- Crank-down spare tire
- 2 front tow hooks
- Dark chrome front bumper insert
- LED in-box lighting
- 4 doors
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Mechanical
- AutoTrac part and full-time 4WD
- Driver selectable steering effort
- Allison 10-speed automatic
- Selectable mode transmission
- Transmission electronic control
- Sequential shift control
- Automatic
- Four-wheel drive
- Two-Speed Transfer Case
- Off-road ride suspension
- Digital Variable Steering Assist speed sensitive power steering
- Lock-up transmission
- Front mounted engine
- Longitudinal mounted engine
- Iron engine block
- Aluminum cylinder head
- Overdrive transmission
- Transmission oil cooler
- Powertrain type: ICE
- All-speed ABS and driveline traction control
- Electronic transfer case shift
- Independent front suspension
- Short and long arm front suspension
- Front anti-roll bar
- Front torsion springs
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Safety
- Forward collision mitigation with pedestrian impact prevention
- Pedestrian impact prevention
- Rear mounted camera
- Automatic Emergency Braking predictive brake assist system
- Lane departure warning
- Rear collision warning
- Teen Driver restricted driving mode/alerts
- Aerial view camera
- Gauge cluster display size: 12.30
- Front mounted camera with washer
- Right side camera
- Pickup box camera
- Left side camera
- Blind spot warning
- Following distance alert
- Auto high-beam headlights
- Immobilizer
- Digital/analog instrumentation display
- Configurable instrumentation gauges
- Electronic stability control system with anti-roll
- Hill Descent Control (HDC)
- Hill Hold Assist
- Front and rear parking sensors
- LED daytime running lights
- LED brake lights
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Entertainment
- Primary monitor touchscreen
- Wireless audio streaming
- Bose speakers
- Premium GMC Infotainment System external memory control
- Internet radio capability
- Premium GMC Infotainment System voice activated audio controls
- AM/FM/SiriusXM with 360Lsatellite
- 2 total number of 1st row displays
- 13.4 inch primary display
- Amplifier
- 7 speakers
- Seek scan
- 3 month satellite trial subscription
- Fixed audio antenna
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Disclaimers
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New vehicle pricing includes all offers and incentives. Tax, Title, and Tags not included in vehicle prices shown and must be paid by the purchaser. While great effort is made to ensure the accuracy of the information on this site, errors do occur so please verify information with a customer service rep. This is easily done by calling us or by visiting us at the dealership. **With approved credit. Terms may vary. Monthly payments are only estimates derived from the vehicle price with a 72 month term, 6.99% interest and 20% down payment.
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