The 2021 GMC Sierra 1500 SLT Crew Cab delivers a refined balance of premium comfort, diesel efficiency, and professional-grade capability. With its bold chrome detailing, upscale interior finishes, and advanced trailering technology, this full-size pickup is designed for drivers who want luxury without sacrificing strength.Â
Performance & CapabilityÂ
Engine: Duramax® 3.0L Turbo-Diesel I6 offering impressive torque, smooth power delivery, and excellent fuel efficiencyÂ
Transmission: Responsive 10-speed automatic engineered for confident towing and highway cruisingÂ
Drivetrain: Autotrac® Two-Speed 4-Wheel Drive (4WD) for assured traction in all driving conditionsÂ
Rear Axle Ratio: 3.23 for a balanced blend of towing capability and everyday efficiencyÂ
Trailering Equipment: Integrated trailer brake controller, hitch guidance with Hitch View, advanced trailering system, and trailer assist guidelinesÂ
Off-Road Control: Automatic locking rear differential, skid plates, and hill descent control for added confidence on rough terrainÂ
Ride & Off-Road ReadinessÂ
X31 Off-Road Package with upgraded suspension and underbody protectionÂ
All-terrain tires mounted on 20" polished aluminum wheelsÂ
Driver-selectable drive modes to adapt to terrain, weather, and workloadÂ
Heavy-duty cooling systems and high-capacity air filtration for demanding useÂ
Interior Comfort & LuxuryÂ
Leather-appointed front bucket seats with 8-way power adjustment for both driver and passengerÂ
Heated and ventilated front seats, heated rear outboard seats, and heated steering wheelÂ
Dark Walnut / Slate interior accents for a rich, upscale cabin feelÂ
Tri-zone automatic climate control with rear air vents for passenger comfortÂ
Power sliding rear window and rear seat storage package for added practicalityÂ
Technology & ConnectivityÂ
Premium GMC Infotainment System with navigation and intuitive touchscreen interfaceÂ
Bose® premium audio system delivering rich, immersive soundÂ
Head-Up Display (HUD) projecting key driving information directly in the driver’s line of sightÂ
Wireless charging pad, multiple USB ports, and 120V power outlets in the cabin and bedÂ
Rear camera mirror, HD Surround Vision, and Bed View Camera for enhanced visibilityÂ
Safety & Driver AssistanceÂ
Forward collision alert with low-speed automatic emergency brakingÂ
Lane keep assist with lane departure warning and lane change alert with side blind zone alertÂ
Front and rear park assist with rear cross-traffic alertÂ
Adaptive cruise control and following distance indicatorÂ
Teen Driver mode and driver safety alert seat for added awarenessÂ
Exterior Styling & UtilityÂ
Exterior Colour: White Frost Tricoat - a premium, pearl-like finish with standout presenceÂ
Chrome front and rear bumpers, chrome door handles, mirror caps, and assist stepsÂ
Signature LED headlamps, fog lamps, and LED cargo bed lightingÂ
GMC MultiProâ„¢ Tailgate for flexible loading, step access, and work-ready functionalityÂ
Spray-on bedliner, rear bumper corner steps, and bed-mounted 120V power outletÂ
The Bottom LineÂ
Whether you’re towing with confidence, cruising in comfort, or tackling off-road adventures, the 2021 GMC Sierra 1500 SLT Crew Cab delivers a polished driving experience backed by diesel efficiency, advanced technology, and unmistakable GMC style,  a truck that works hard and looks good doing it.Â
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Slt Preferred Equipment Group • 4SAincludes standard equipment
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Transmission, 10-Speed Automatic, Electronically Controlled • MQBwith overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking Most vehicles built on or after 6-7-2021 with a V8 engine and (MQB) 10-speed automatic transmission will have (NSS) Not Equipped with Automatic Stop/Start, which removes Automatic Stop/Start and its content.)
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Gvwr, 7200 Lbs. (3266 Kg) • C5Z
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Rear Axle, 3.23 Ratio • GU5
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Wheels, 20" X 9" (50.8 Cm X 22.9 Cm) Polished Aluminum • NZM
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Tires, 275/60R20Sl All-Terrain, Blackwall • QAE(Includes (QAQ) spare tire.
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Tire, Spare 255/80R17Sl All-Season, Blackwall • QAQ
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White Frost Tricoat • G1W
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Seats, Front Bucket • A50with centre console
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Dark Walnut/Slate, Perforated Leather-Appointed Front Outboard Seat Trim • HVE
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Audio System, Premium Gmc Infotainment System With Navigation • IOTand 8" diagonal colour touch-screen, includes multi-touch display, AM/FM stereo, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones, advanced voice recognition, in-vehicle apps, personalized profiles for infotainment and vehicle settings. Includes greater memory. Includes (PZ8) Hitch Guidance with hitch view.)
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Option/Package Discount • R7C
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Slt Premium Plus Package • PDTincludes (PCY) SLT Convenience Package, (PDY) SLT Preferred Package, (PQB) Driver Alert Package I, (PDJ) Driver Alert Package II, (NZM) 20" Polished aluminum wheels, (BVT) Chrome assist steps and (CGN) spray-on bedliner.
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Technology Package • CWMincludes (UVS) HD Surround Vision, (DRZ) Rear Camera Mirror, (UVN) Bed View Camera and (UV6) Multicolour 15" Diagonal Head-Up Display Includes (UHS) 8" Digital Driver information Centre.)
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Slt Convenience Package • PCYincludes (A50) bucket seats with (D07) centre console, (KQV) ventilated front seats, (A48) rear sliding power window, (UG1) Universal Home Remote, (MCZ) 2 USB ports with auxiliary input (IP Mounted), (MCR) 2 USB Ports/SD Card/ Aux Jack (Inside Console with bucket seats); also includes (KA6) rear heated seats (KA6) Heated Second Row Outboard Seats are included on Crew Cab models built before 7-26-2021. Certain vehicles built on or after 7-26-2021 will include (RFU) Not Equipped with Heated Second Row Outboard Seats, which removes (KA6) Heated Second Row Outboard Seats. See dealer for details.)
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Slt Preferred Package • PDYincludes (IOT) 8" diagonal Premium GMC Infotainment with navigation, (UQA) Bose Premium Audio System and (K4C) Wireless Charging
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Engine Block Heater • K05
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Hill Descent Control • JHD
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Transfer Case, Two-Speed, Electronic Autotrac • NQHwith push button control
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Exhaust, Dual With Premium Tips • N10
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Sunroof, Power • CF5
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Assist Steps, Chrome Wheel To Wheel • BVT
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Intellibeam, Automatic High Beam On/Off • TQ5
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Mirrors, Outside Power-Adjustable Vertical Trailering With Heated Upper Glass, Lower Convex Mirrors • DQSturn signal indicators, puddle lamps, perimeter lighting, auxiliary lighting and memory; power folding/manual extending
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Window, Power, Rear Sliding With Rear Defogger • A48
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Bed Liner, Spray-On • CGNPickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel)
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Bose Sound System, Premium 7-Speaker System With Richbass Woofer • UQA
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Seats, Ventilated Driver And Front Passenger • KQV
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Seats, Heated Second Row Outboard Seats • KA6on vehicles built before 7-26-2021. Certain vehicles built on or after 7-26-2021 will include (RFU) Not Equipped with Heated Second Row Outboard Seats, which removes (KA6) Heated Second Row Outboard Seats. See dealer for details.)
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Centre Console, Floor-Mounted • D07with cup holders, cell phone storage, power cord management, hanging file folder capability
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Driver Information Centre, Enhanced, 8" Diagonal Multi-Colour Digital Display • UHSincludes analogue speedometer and tachometer gauges
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Multi-Colour 15" Diagonal Head-Up Display • UV6
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Universal Home Remote • UG1
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Adaptive Cruise Control • KSG
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Wireless Charging • K4C
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Usb Ports, 2 (First Row) Located On Instrument Panel • MCZ
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Rear Camera Mirror, Inside Rearview Auto-Dimming • DRZwith full camera display
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Automatic Emergency Braking • UHY
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Front Pedestrian Braking • UKJ
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Hd Surround Vision With Two Trailer View Camera Provisions • UVSprovides the driver with an overhead view of the scene around the vehicle on a centre stack display
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Front And Rear Park Assist, Ultrasonic • UD5
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Lane Change Alert With Side Blind Zone Alert • UKC
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Lane Keep Assist With Lane Departure Warning • UHX
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Following Distance Indicator • UE4
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Forward Collision Alert • UEU
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Rear Cross Traffic Alert • UFG
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Safety Alert Seat • HS1
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Air Conditioning
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Backup Camera
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Bluetooth Connection
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Cruise Control
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Heated Seats
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Keyless Entry
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Leather Seats
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Power Seats
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Power Windows
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Remote Start
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Satellite Radio
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Smart Device Integration
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Wi-Fi Hotspot
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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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Smart Device Integration
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HD Radio
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Requires Subscription
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Satellite Radio
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Steering Wheel Audio Controls
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WiFi Hotspot
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Aluminum Wheels
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Tires - Front All-Season
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Tires - Rear All-Season
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Wheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spare
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Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
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Bumper, front chrome lower
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Bumper, rear chrome with bumper CornerSteps
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Mouldings, window surround, Chrome
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Daytime Running Lights
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Fog Lamps
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Taillamps, LED signature taillight with LED stop and reverse light
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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 cargo box activated with switch on centre switch bank or key fob
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Heated Mirrors
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Mirror Memory
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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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Integrated Tailgate Step
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Tailgate, gate function manual with EZ Lift, includes power lock and release includes hitch area light
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Tailgate and bed rail protection caps, top
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Door handles, chrome
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Cargo tie downs (12), fixed rated at 500 lbs (226.8 kg) per corner
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Split Bench Seat
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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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Heated Front Seat(s)
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Rear Bench Seat
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Floor covering, colour-keyed carpeting
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Floor Mats
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Adjustable Steering Wheel
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Steering column, lock control, electrical
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Leather Steering Wheel
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Heated Steering Wheel
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Exterior Temperature Display, located in radio display
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Compass, located in instrument cluster
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Driver Information Centre, 4.2" diagonal colour display includes driver personalization
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In-vehicle Trailering App includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder and trailer electrical diagnostics
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Power Windows
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Power Door Locks
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Keyless Entry
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Keyless Start
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Remote Engine Start
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Cruise Control
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Mirror Memory
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Seat Memory
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Security System
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Auxiliary Audio Input
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MP3 Player
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Power Outlet
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Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
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USB ports, dual, charge-only (2nd row)
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Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
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A/C
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Climate Control
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Multi-Zone A/C
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Air vents, rear
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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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GMC Connected Access capable (Subject to terms. See onstar.ca or dealer for details.)
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8 Cylinder Engine
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Gasoline Fuel
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8-Speed A/T
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A/T
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Pickup bed
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GVWR, 7100 lbs. (3221 kg) (Requires Crew Cab 4WD model with (L84) 5.3L EcoTec3 V8 engine or (L87) 6.2L EcoTec3 V8 engine without (NHT) Max Trailering Package.)
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Automatic Stop/Start (Standard on vehicles built before 6-7-2021. Most vehicles built on or after 6-7-2021 that are equipped with a V8 engine and (MQB) 10-speed automatic transmission will have (NSS) Not Equipped with Automatic Stop/Start, which removes Automatic Stop/Start and its content. See dealer for details.)
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Locking/Limited Slip Differential
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Transfer case, single speed, electronic Autotrac with push button control (4WD models only)
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Four Wheel Drive
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Cooling, external engine oil cooler (Not available with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
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Cooling, auxiliary external transmission oil cooler
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Alternator, 170 amps (Included and only available with (L84) 5.3L EcoTec3 V8 engine or (L87) 6.2L EcoTec3 V8 engine. Not available with (NHT) Max Trailering Package, (LM2) Duramax 3.0L Turbo-Diesel I6 engine or (VYU) Snow Plow Prep Package.)
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Battery, heavy-duty 730 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L84) 5.3L EcoTec3 V8 engine, (L3B) 2.7L Turbo engine and (L87) 6.2L EcoTec3 V8 engine.)
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Frame, fully-boxed, hydroformed front section
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Trailer brake controller, integrated
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Tow Hooks
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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
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Exhaust, aluminized stainless-steel muffler and tailpipe
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Exhaust, single outlet
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Tow Hitch
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ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (U1D) In-vehicle Trailering App
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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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Back-Up Camera
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Hitch Guidance
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Driver Restriction Features
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Tire Pressure Monitor
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Rear Seat Reminder
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Vehicle NameGMC Sierra 1500
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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 CodeMQB
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Trans Type10
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Trans Description Cont.Automatic
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First Gear Ratio (:1)4.69
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Second Gear Ratio (:1)2.98
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Third Gear Ratio (:1)2.15
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Fourth Gear Ratio (:1)1.8
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Fifth Gear Ratio (:1)1.52
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Sixth Gear Ratio (:1)1.28
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Seventh Gear Ratio (:1)1.00
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Eighth Gear Ratio (:1)0.85
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Ninth Gear Ratio (:1)0.69
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Tenth Gear Ratio (:1)0.63
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Reverse Ratio (:1)4.86
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Transfer Case ModelMagna MP3023/4
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Transfer Case Gear Ratio (:1), High1.00
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Transfer Case Gear Ratio (:1), Low2.69
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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)65.16
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Second Hip Room (in)60.24
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Gross Axle Wt Rating - Front (lbs)3800
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Gross Axle Wt Rating - Rear (lbs)3800
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Curb Weight - Front (lbs)2918
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Curb Weight - Rear (lbs)1949
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Gross Vehicle Weight Rating Cap (lbs)7200
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Gross Combined Wt Rating (lbs)15000
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EnerGuide Estimate - City (L/100 km)14.3
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EnerGuide Estimate - Hwy (L/100 km)10.7
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G/km Of CO2 Emissions298
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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)9100
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Wt Distributing Hitch - Max Tongue Wt. (lbs)910
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Fifth Wheel Hitch - Max Trailer Wt. (lbs)7600
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)1900
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Maximum Trailering Capacity (lbs)11800
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Engine TypeGas V8
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Fuel SystemDirect Injection
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Engine Order CodeL84
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Displacement5.3L/325
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SAE Net Horsepower @ RPM355 @ 5600
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SAE Net Torque @ RPM383 @ 4100
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Engine Oil CoolerYes
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Cold Cranking Amps @ 0° F (Primary)730
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Maximum Alternator Capacity (amps)170
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Frame TypeBox Ladder
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Suspension Type - FrontIndependent
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Suspension Type - RearSolid Axle
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Spring Capacity - Front (lbs)3800
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Spring Capacity - Rear (lbs)3850
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Axle Capacity - Front (lbs)3800
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Axle Capacity - Rear (lbs)3800
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Axle Ratio (:1) - Front3.23
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Axle Ratio (:1) - Rear3.23
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Shock Absorber Diameter - Front (mm)50
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Shock Absorber Diameter - Rear (mm)50
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Stabilizer Bar Diameter - Front (in)1.3
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Front Tire Order CodeQAE
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Rear Tire Order CodeQAE
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Spare Tire Order CodeQAQ
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Front Tire Size275/60R20SL
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Rear Tire Size275/60R20SL
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Spare Tire Size255/80R17SL
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Revolutions/Mile @ 45 mph - Front (Rev/Mile)N/A
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Revolutions/Mile @ 45 mph - Rear (Rev/Mile)N/A
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Revolutions/Mile @ 45 mph - Spare (Rev/Mile)N/A
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Front Wheel Size (in)20 x 9
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Rear Wheel Size (in)20 x 9
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Spare Wheel Size (in)17 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 TypeElectric Rack & Pinion
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Turning Diameter - Curb to Curb (ft)50.2
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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)13.5 x 1.18
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Rear Brake Rotor Diam x Thickness (in)13.6 x 0.79
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Fuel Tank Capacity, Approx (L)91
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Wheelbase (in)156.98
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Length, Overall (in)241.25
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Width, Max w/o mirrors (in)81.24
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Height, Overall (in)75.4
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Ground Clearance, Front (in)7.97
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Ground Clearance, Rear (in)7.97
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Cargo Box Length @ Floor (in)79.44
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Cargo Box Width @ Floor (in)71.4
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Cargo Box Width @ Wheelhousings (in)50.63
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Cargo Box (Area) Height (in)22.4
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Tailgate Width (in)71.4
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Cargo Volume (ft³)71.7
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Body StyleTruck
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Engine6.6L
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Exterior ColourBlack
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TransmissionAutomatic
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Drivetrain4×4
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Stock302814
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128,000 km
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Body StyleTruck
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Engine6.7L
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Exterior ColourSilver
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TransmissionAutomatic
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Drivetrain4×4
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Stock302892
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207,827 km
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Body StyleTruck
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Engine2.7L
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Exterior ColourWhite
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TransmissionAutomatic
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Drivetrain4×4
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Stock302788
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50,977 km
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Body StyleTruck
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Engine5.3L
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Exterior ColourBlue
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TransmissionAutomatic
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Drivetrain4×4
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Stock302870
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109,662 km
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Body StyleTruck
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Engine6.7L
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Exterior ColourWhite
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TransmissionAutomatic
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Drivetrain4×4
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Stock302334
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156,557 km
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Doc Fee+$499
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AMVIC Fee+$10
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Doc Fee+$499
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AMVIC Fee+$10