The 2026 Chevrolet Silverado 3500HD High Country 4WD Crew Cab Standard Box represents the pinnacle of heavy-duty luxury and capability. Blending first-class craftsmanship with uncompromising diesel strength, it is built for those who demand maximum towing confidence, advanced technology, and premium comfort in every mile.
Performance & Capability
Engine: Duramax 6.6L V8 Turbo Diesel delivering monumental torque and long-haul durability
Transmission: 10-speed Allison automatic engineered for seamless shifting under extreme loads
Drivetrain: Advanced 4WD system with Autotrac two-speed transfer case for superior traction control
Suspension: Z71 Off-Road tuned suspension with skid plates and hill descent control for rugged terrain confidence
Axle Ratio: Heavy-duty rear axle optimized for maximum towing and payload stability
Trailering Equipment: Integrated trailer brake controller, Hitch Guidance with Hitch View, and full trailering app integration
Gooseneck & 5th Wheel Prep Package for professional-grade hauling capability
Trailer Technology: Trailer Side Blind Zone Alert, Trailer Camera Provisions, and Bed View Camera for precision towing
Exhaust & Cooling: Exhaust brake, transmission oil cooler, engine oil cooler, and heavy-duty air filtration system
Power Management: 220-amp alternator and advanced cooling systems for sustained heavy-duty performance
Winter & Weather Confidence
Heated & Ventilated Front Seats plus Heated Rear Outboard Seats for year-round comfort
Heated Steering Wheel for cold-weather control and comfort
Engine Block Heater for dependable cold starts in extreme climates
Heated Power Tow Mirrors with auto-dimming for improved visibility in snow and rain
Remote Start System to pre-condition the cabin before entry
Dual-zone climate control and rear air vents
Interior Comfort & Luxury
High Country Premium Cabin with Jet Black / Umber leather-appointed seating
Power Driver Seat with Memory and Power Passenger Seat for tailored comfort
Heated & Ventilated Front Seats with premium perforated leather surfaces
12-inch Digital Driver Information Center with customizable display layouts
13.4-inch Advanced Infotainment System with Google Built-In and navigation capability
Bose® Premium Sound System for immersive audio quality
Wireless Charging, multiple USB ports, and 120V power outlets in cabin and bed
Rear Seat Storage Package with foldable bench for added versatility
Power Sunroof and ambient interior lighting for an upscale driving atmosphere
Rear Camera Mirror providing a high-definition rear view even with a full cargo bed
Safety & Driver Assistance
GMC/GM Pro Safety Suite with Forward Collision Alert and Automatic Emergency Braking
Lane Keep Assist, Lane Departure Warning, and Front Pedestrian Braking
Adaptive Cruise Control with Following Distance Indicator for highway ease
HD Surround Vision with multiple camera angles for parking and towing precision
Rear Cross Traffic Alert and Trailer Side Blind Zone Alert for added towing awareness
Front & Rear Park Assist for low-speed maneuvering confidence
Teen Driver Mode and Buckle-to-Drive for enhanced safety monitoring
Driver Safety Alert Seat providing vibration alerts for critical warnings
Exterior Styling & Utility
Bold High Country design with chrome accents, signature badging, and commanding stance
20-inch Bright Aluminum Wheels for a refined yet powerful road presence
LED Headlamps, Fog Lamps, and Roof Marker Lights for maximum visibility
Durabed High-Strength Cargo Box with spray-on bedliner for extreme durability
Multi-Flex Tailgate with configurable loading, step, and workstation functionality
Chrome Assist Steps and CornerStep Rear Bumper for easy access to cabin and bed
Front & Rear Recovery Hooks in chrome finish for rugged utility and styling
Gooseneck/5th Wheel Prep and Trailer Wiring Provisions for serious hauling needs
Active Aero Shutters and aerodynamic enhancements for improved efficiency
Bed lighting and 120V power outlets for worksite functionality
Whether conquering heavy-duty jobsite demands, towing large trailers, or traveling long distances in premium comfort, the 2026 Chevrolet Silverado 3500HD High Country delivers unmatched diesel power, cutting-edge towing intelligence, and first-class refinement. It stands as the ultimate expression of strength, luxury, and professional-grade capability.
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AM/FM Stereo
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Auxiliary Audio Input
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Bluetooth Connection
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MP3 Player
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Navigation System
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Smart Device Integration
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Requires Subscription
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Satellite Radio
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Premium Sound System
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WiFi Hotspot
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Aluminum Wheels
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Tires - Front All-Terrain
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Tires - Rear All-Terrain
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Conventional Spare Tire
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Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
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Bumper, front (Body-colour.)
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Bumper, rear (Body-colour.)
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CornerStep, rear bumper
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BedStep, Black integrated on forward portion of bed on driver and passenger side
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Running Boards/Side Steps
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Mouldings, beltline, stainless steel
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Wheelhouse liners, rear (Not available with dual rear wheels.)
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Cargo tie downs (12), fixed, rated at 500 lbs (226.8 kg) per corner
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Daytime Running Lights
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Automatic Highbeams
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Fog Lamps
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Lamps, cargo area cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
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LED Cargo Area Lighting located in pickup bed, activated with switch on centre switch bank or key fob
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Heated Mirrors
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Integrated Turn Signal Mirrors
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Power Folding Mirrors
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Power Mirror(s)
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Mirror caps, chrome
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Privacy Glass
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Rear Defrost
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Sliding Rear Window
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Intermittent Wipers
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Rain Sensing Wipers
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Variable Speed Intermittent Wipers
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LPO, Polished exhaust tip (dealer installed) (Requires (L8T) 6.6L V8 gas engine. Not included when (L5P) Duramax 6.6L Turbo-Diesel V8 engine is ordered.)
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Door handles, chrome
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Tailgate, standard
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Tailgate and bed rail protection cap, top
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Tailgate, gate function power up/down with power lock and release (Not available with (QK2) Multi-Flex tailgate.)
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Bed Liner
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Bucket Seats
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Leather Seats
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Driver Adjustable Lumbar
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Power Driver Seat
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Passenger Adjustable Lumbar
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Power Passenger Seat
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Pass-Through Rear Seat
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Heated Front Seat(s)
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Cooled Front Seat(s)
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Heated Rear Seat(s)
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Mirror Memory
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Seat Memory
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Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
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Floor covering, colour-keyed carpeting
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Floor Mats
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Steering wheel, wrapped
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Heated Steering Wheel
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Adjustable Steering Wheel
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Steering Wheel Audio Controls
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Exterior Temperature Display located in radio display
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Compass, located in instrument cluster
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In-Vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module
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Window, power front, drivers express up/down
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Power Windows
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Power Door Locks
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Remote Engine Start
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Keyless Entry
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Keyless Start
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Adaptive Cruise Control
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Cruise Control
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Universal Garage Door Opener
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Security System
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Wireless Charging (Not compatible with all phones. Compliant batteries include QI and PMA technologies. Reference Mobile devices manual to confirm what type of battery it uses.)
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Power outlet, interior, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
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Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)
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Auxiliary Audio Input
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MP3 Player
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USB Ports, rear, dual, charge-only
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A/C
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Climate Control
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Multi-Zone A/C
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Rear A/C
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Rear Defrost
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Auto-Dimming Rearview Mirror
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Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
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8 Cylinder Engine
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Gasoline Fuel
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10-Speed A/T
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A/T
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Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine. Not available with (L5P) Duramax 6.6L Turbo-Diesel V8 engine.)
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Durabed, pickup bed
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Keyless Start
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Air filter, heavy-duty
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Air filtration monitoring
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Transfer case, two-speed active electronic Autotrac with push button control
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Locking/Limited Slip Differential
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Four Wheel Drive
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Cooling, external engine oil cooler
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Cooling, auxiliary external transmission oil cooler
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Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
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Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
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Trailer Camera Provisions and trailer viewing software
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Trailer brake controller, integrated
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Tow Hooks
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Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
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Suspension Package
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Power Steering
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4-Wheel Disc Brakes
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ABS
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Brake lining wear indicator
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Capless Fuel Fill (Requires (L8T) 6.6L V8 gas engine.)
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Exhaust, single, side
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Tow Hitch
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Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
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Front Collision Mitigation
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Front Collision Warning
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Stability Control
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Traction Control
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Daytime Running Lights
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Driver Air Bag
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Front Head Air Bag
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Front Side Air Bag
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Passenger Air Bag
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Passenger Air Bag Sensor
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Rear Head Air Bag
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Requires Subscription
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Telematics
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Navigation from Telematics
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Rear Parking Aid
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Aerial View Display System
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Back-Up Camera
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Bed View Camera camera in the CHMSL to show a view of the cargo bed, display located in infotainment screen, includes Two Trailer Camera Provisions
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Hitch Guidance dynamic single line to aid in trailer alignment for hitching
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Cross-Traffic Alert
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Blind Spot Monitor
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Lane Departure Warning
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Following Distance Indicator
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Safety Alert Seat
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Seat Belt Adjustable Guide Loops, front row only
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Driver Restriction Features
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Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use, can be turned on and off in Settings menu
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Tire Pressure Monitor
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Vehicle NameChevrolet Silverado 3500HD
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Body StyleCrew Cab Pickup
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Body CodeE63
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DrivetrainFour Wheel Drive
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Trans Order CodeMKM
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Trans Type10
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Trans Description Cont.Automatic
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Transfer Case ModelMagna MP1625/6
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Transfer Case Gear Ratio (:1), High1.00
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Transfer Case Gear Ratio (:1), Low2.72
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Passenger Capacity5
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Front Head Room (in)43.03
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Front Leg Room (in)44.53
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Front Shoulder Room (in)66.02
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Front Hip Room (in)61.18
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Second Head Room (in)40.12
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Second Leg Room (in)43.4
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Second Shoulder Room (in)65.3
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Second Hip Room (in)60.24
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Gross Axle Wt Rating - Front (lbs)5600
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Gross Axle Wt Rating - Rear (lbs)7250
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Curb Weight - Front (lbs)4032
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Curb Weight - Rear (lbs)2928
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Gross Vehicle Weight Rating Cap (lbs)11550
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Gross Combined Wt Rating (lbs)30000
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Dead Weight Hitch - Max Trailer Wt. (lbs)5000
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Dead Weight Hitch - Max Tongue Wt. (lbs)500
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Wt Distributing Hitch - Max Trailer Wt. (lbs)20000
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Wt Distributing Hitch - Max Tongue Wt. (lbs)2000
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Fifth Wheel Hitch - Max Trailer Wt. (lbs)21300
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)5325
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Maximum Trailering Capacity (lbs)20000
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Engine Order CodeL5P
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Engine TypeTurbocharged Diesel V8
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Displacement6.6L/403
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Fuel SystemDirect Injection
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SAE Net Horsepower @ RPM470 @ 2800
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SAE Net Torque @ RPM975 @ 1600
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Engine Oil CoolerYes
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Cold Cranking Amps @ 0° F (Primary)720
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Maximum Alternator Capacity (amps)170
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Frame TypeHydroformed
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Suspension Type - FrontShort/Long Arm w/Torsion Bars
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Suspension Type - Rear3-Stage Multi-Leaf
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Axle Type - FrontIndependent
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Axle Ratio (:1) - Rear3.73
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Shock Absorber Diameter - Front (mm)51
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Shock Absorber Diameter - Rear (mm)51
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Stabilizer Bar Diameter - Front (in)1.38
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Front Tire Order CodeQF9
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Rear Tire Order CodeQF9
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Spare Tire Order CodeZYG
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Front Tire SizeLT275/65R20
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Rear Tire SizeLT275/65R20
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Spare Tire SizeLT275/70R18
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Front Wheel Size (in)20
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Rear Wheel Size (in)20
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Spare Wheel Size (in)18 x 8
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Front Wheel MaterialAluminum
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Rear Wheel MaterialAluminum
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Spare Wheel MaterialSteel
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Steering TypePwr Recirculating Ball
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Steering Ratio (:1), At LockN/A
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Turning Diameter - Curb to Curb (ft)52.7
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Turning Diameter - Wall to Wall (ft)N/A
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Brake TypePwr
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Brake ABS System4-Wheel
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Disc - FrontYes
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Disc - RearYes
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Front Brake Rotor Diam x Thickness (in)14 x 1.6
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Rear Brake Rotor Diam x Thickness (in)14.1 x 1.3
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Fuel Tank Capacity, Approx (L)136
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Wheelbase (in)159
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Length, Overall (in)249.95
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Width, Max w/o mirrors (in)81.85
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Height, Overall (in)80.87
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Cab to Axle (in)42.1
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Ground to Top of Load Floor (in)38.9
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Ground Clearance, Front (in)11.18
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Ground Clearance, Rear (in)11.18
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Cargo Box Length @ Floor (in)82.25
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Cargo Box Width @ Floor (in)71.4
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Cargo Box Width @ Wheelhousings (in)51.85
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Cargo Box (Area) Height (in)21
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Cargo Volume (ft³)69.5
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