Big Power, Big Personality
This truck doesn't just show up - it shows off. The 2025 GMC Sierra 3500 SLT Diesel is a heavy-duty beast with brains, brawn, and a whole lot of attitude. Under the hood, the Duramax diesel paired with the legendary Allison transmission delivers torque that laughs at steep grades and heavy trailers. If you've got something to tow, this truck says, Bring it on.
But it's not all work and no play. Thanks to the X31 Off-Road Package, this Sierra is just as comfortable kicking up dust off the beaten path. With off-road suspension, skid plates, and hill descent control, it's ready to get dirty and still look good doing it.
Inside, the SLT trim keeps things classy. You've got a quiet, comfortable cabin loaded with tech and premium touches that make long hauls feel like a cruise. Whether you're hauling equipment, heading to the mountains, or just rolling through town, this truck turns heads and handles business.
Bottom line? This Sierra 3500 SLT is built to work hard, play harder, and look sharp every mile of the way.
Call us now 360-794-1155 speedwaychevrolet.com
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10-Speed Automatic, 4WD, Jet Black w/Perf Leather-Appointed Front Outboard Seat Trim, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge-Only Rear USB Ports, 2 Charge/Data USB Ports, 2-Speed Active Transfer Case, 6-Speaker Audio System Feature, Chrome Surround Grille w/Chrome Insert Bars, Deep-Tinted Glass, Electric Rear-Window Defogger, Front Rain-Sensing Wipers, Heated Driver & Front Outboard Passenger Seats, Hill Descent Control, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel/Telescoping Steering Column, Off-Road Suspension, Power Front Windows w/Passenger Express Up/Down, Preferred Equipment Group 4SA, Push Button Start, Remote Vehicle Starter System, SiriusXM w/360L Trial Subscription, Steering Wheel Audio Controls, Unauthorized Entry Theft-Deterrent System, Wireless Phone Projection, X31 Off-Road Package.
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Clean CARFAX.
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DRIVE WITH CONFIDENCE â" The LJ WAY! Most used vehicles include a 6 Month / 6000 Mile Warranty, plus we offer a 7-Day Exchange! Learn more: https://www.speedwaychevrolet.com/drive-with-confidence.
Used 2025 GMCSierra 3500 HD SLT
- Exterior Color
- Summit White
- Interior Color
- Jet Black
- Odometer
- 9,863 miles
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT4UUEY1SF215737
- Stock Number
- 911942
GMC
Sierra 3500 HD
Highlighted Features
- Lane departure
- Leather upholstery
- Automatic temperature control
- Wireless phone connectivity
- Exterior parking camera rear
- Front dual zone A/C
- Auto high-beam headlights
- Rain sensing wipers
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
- Heated front seats
Retailer Notes
Included Packages & Accessories
- Suspension Package
- 6 Speakers
- AM/FM radio: SiriusXM with 360L
- Radio: AM/FM w/Premium GMC Infotainment System
- SiriusXM w/360L Trial Subscription
- Air Conditioning
- Automatic temperature control
- Front dual zone A/C
- Rear window defroster
- Driver Memory
- Memory seat
- Power driver seat
- Power Front Windows w/Passenger Express Up/Down
- Power steering
- Power windows
- Remote keyless entry
- Steering wheel mounted audio controls
- Speed-sensing steering
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Front anti-roll bar
- Front wheel independent suspension
- Keyless Open & Start
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Pickup Bed
- Brake assist
- Electronic Stability Control
- Lane Departure Warning System
- Exterior Parking Camera Rear
- Auto High-beam Headlights
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Speed control
- Heavy-Duty 80 Amp-Hr Battery
- Auto-dimming door mirrors
- Bumpers: chrome
- Chrome Surround Grille w/Chrome Insert Bars
- Heated door mirrors
- IntelliBeam Automatic High Beam On/Off
- Power door mirrors
- Rear step bumper
- Turn signal indicator mirrors
- Auto-dimming Rear-View mirror
- Automatic Emergency Braking
- Buckle to Drive
- Compass
- Driver door bin
- Driver vanity mirror
- Following Distance Indicator
- Forward Collision Alert
- Front 40/20/40 Split-Bench Seats w/Lockable Storage
- Front Pedestrian Braking
- Front reading lights
- GMC Premium 13.4" Diagonal Information Display
- Heated steering wheel
- Illuminated entry
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Voltmeter
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Heated Driver & Front Outboard Passenger Seats
- Heated front seats
- Perf Leather-Appointed Front Outboard Seat Trim
- Power passenger seat
- Split folding rear seat
- Front Center Armrest w/Storage
- Passenger door bin
- Hitch Guidance w/Hitch View
- Rain sensing wipers
- Variably intermittent wipers
- 3.73 Rear Axle Ratio
- Preferred Equipment Group 4SA
- X31 Off-Road Package
- 6-Speaker Audio System Feature
- Steering Wheel Audio Controls
- Electric Rear-Window Defogger
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Push Button Start
- Remote Vehicle Starter System
- Manual Tilt-Wheel/Telescoping Steering Column
- Off-Road Suspension
- Hill Descent Control
- Unauthorized Entry Theft-Deterrent System
- 2-Speed Active Transfer Case
- LED Cargo Area Lighting
- 2 Charge-Only Rear USB Ports
- 2 Charge/Data USB Ports
- Wireless Phone Projection
- Deep-Tinted Glass
- Front Rain-Sensing Wipers
Included Packages & Options
- X31 Off-Road Package$325
- Hill Descent Control
- Off-Road Suspension
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Single rear wheels
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Primary LCD size: 13.4"
- Smart device integration
- Steering wheel mounted audio controls
- Wireless phone connectivity
- Heated front seats
- Leather upholstery
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 284mm (11.2")
- Auto-dimming door mirrors
- Bumpers: chrome
- Door mirrors: chrome
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Engine displacement: 6.6 L
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,054mm (80.9")
- Exterior length: 6,369mm (250.8")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,039mm (159.0")
- Appearance: digital/analog
- Auto high-beam headlights
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera rear
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Lane departure: warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rain sensing wipers
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
Standard Features
- Hill Descent Control
- Off-Road Suspension
- Wireless Phone Projection
- 6-Speaker Audio System Feature
- Electric Rear-Window Defogger
- Push Button Start
- Remote Vehicle Starter System
- 120-Volt Instrument Panel Power Outlet
- 120-Volt Bed Mounted Power Outlet
- 2 Charge/Data USB Ports
- 2 Charge-Only Rear USB Ports
- Deep-Tinted Glass
- Steering Wheel Audio Controls
- Manual Tilt-Wheel/Telescoping Steering Column
- LED Cargo Area Lighting
- Unauthorized Entry Theft-Deterrent System
- Front Rain-Sensing Wipers
- 2-Speed Active Transfer Case
All vehicles are one of each. All Pre-Owned or Certified vehicles are Used. The offering price of this vehicle is conditioned on a negotiated waiver of implied warranties if the Buyers Guide on the vehicle is AS IS-NO DEALER WARRANTY. If the Buyers Guide on the vehicle is IMPLIED WARRANTIES ONLY, the offering price includes implied warranties. Call or see Dealer to determine the form of Buyers Guide on the vehicle. A negotiable documentary service fee of up to $200 may be added to the sale price or capitalized cost. Prices exclude tax, title, license, any finance charges, or additional fees required for closing. All financing is subject to credit approval. All transactions are negotiable including price, trade allowance, interest rate (of which the dealer may retain a portion), term, and documentary service fee. All prices, specifications, and availability subject to change without notice. Any agreement is subject to execution of contract documents. All vehicles subject to prior sale. Please verify any information in question with a dealership sales representative. Vehicles shown at different locations are not currently in our inventory (Not in Stock) but can be made available to you at our location within a reasonable date from the time of your request. While every reasonable effort is made to ensure the accuracy of the vehicle description displayed on this page, dealer makes no warranties, express or implied, regarding the vehicle or vehicle description.
- Retail Price
- $76,710
- Savings
- -$2,215
- Selling Price
- $74,495
- We're here to help: 425-517-8800
- We're here to help: 425-517-8800
