2021 GMC Sierra 1500

* At4 Premium Package * At4 Preferred Package * Driver Alert Package Ii * Lpo; At4 High Clearance Step * Engine; Duramax 3.0L Turbo-Diesel I6 * Sunroof; Power * Driver Alert Package I * Sun/Moonroof * Leather Seats * Satin Steel Metallic * Navigation System * Tires; Lt275/65R18C Mt Blackwall Goodyear Wrangler Duratrac * Engine Block Heater * Lane Keeping Assist * Keyless Start * Cooled Front Seat(S) * Adaptive Cruise Control * Alternator; 220 Amps * At4 Preferred Equipment Group * Audio System; Premium Gmc Infotainment System With Navigation And 8" Diagonal Color Touch-Screen; Includes Multi-Touch Display; AM/FM Stereo * Automatic Emergency Braking * Bose Sound System; Premium 7-Speaker System * Emissions; Federal Requirements * Following Distance Indicator * Forward Collision Alert * Front And Rear Park Assist; Ultrasonic * Front Pedestrian Braking * Gvwr; 7100 Lbs. (3221 Kg) * Intellibeam; Automatic High Beam On/Off * Jet Black With Kalahari Accents; Perforated Leather Front Seat Trim * Lane Change Alert * Lane Keep Assist * License Plate Kit; Front * Rear Axle; 3.23 Ratio * Rear Cross Traffic Alert * Safety Alert Seat * Seats; Front Bucket * Seats; Heated Second Row Outboard Seats * Tire; Spare 265/70R17Sl All-Season; Blackwall * Transmission; 10-Speed Automatic; Electronically Controlled * Universal Home Remote * Wheels; 18" X 8.5" (45.7 Cm X 21.6 Cm) Machined Aluminum * Window; Power; Rear Sliding With Rear Defogger * Wireless ChargingThis vehicle includes a Money-Back Guarantee* and passed our precise inspection process. Best of all the price you see is the price you pay. No haggling. No back and forth. No pressure. And this price is so good it is guaranteed. *Money-Back Guarantee is valid for 5 days or 250 miles, whichever comes first. Subject to certain terms and conditions. See store for details. Some restrictions apply.2021 GMC Sierra 1500 AT4 4x4 Duramax Diesel, One-Owner, Colorado Truck This 2021 GMC Sierra 1500 AT4 4x4 is a premium off-road truck combining Duramax diesel efficiency with rugged AT4 capability and refined comfort . With 79,697 miles , this Sierra stands out as a clean, one-owner Colorado truck with excellent history and strong maintenance . Powered by the highly desirable 3.0L Duramax turbo-diesel inline-6 paired with 4x4 , this Sierra delivers impressive torque, towing capability, and fuel efficiency in a full-size truck platform . [1CARFAX Ve...T4MG106749 , PDF] Vehicle Highlights 79,697 miles 3.0L Duramax Turbo-Diesel I6 [1CARFAX Ve...T4MG106749 , PDF] 4x4 drivetrain [1CARFAX Ve...T4MG106749 , PDF] AT4 off-road trim package CARFAX 1-owner vehicle [1CARFAX Ve...T4MG106749 , PDF] Colorado-owned since new [1CARFAX Ve...T4MG106749 , PDF] Performance & Capability Efficient and torque-rich Duramax diesel engine Excellent towing and highway driving capability Smooth, confident 4x4 performance for all seasons Ideal for towing, commuting, and mountain driving Strong fuel economy compared to gas V8 competitors AT4 Off-Road Capability Factory AT4 off-road suspension and tuning Skid plates and off-road protection Enhanced traction systems for snow, dirt, and trails Raised ride height and aggressive stance Interior & Comfort Premium AT4 interior with refined materials Spacious Crew Cab configuration Dual-zone climate control Power-adjustable seating and modern cabin layout Quiet, comfortable ride for long-distance driving Technology & Features GMC infotainment system with touchscreen display Apple CarPlay & Android Auto compatibility Bluetooth connectivity Backup camera and driver assistance features OnStar capability with connected services [1CARFAX Ve...T4MG106749 , PDF] - Service & Condition Highlights Recently serviced at AutoNation Buick GMC (Feb 2026) including: Battery replacement Brake inspection Full system check [1CARFAX Ve...T4MG106749 , PDF] Emissions inspection completed Regular ownership history and consistent use Dealer inspected and ready for delivery Ownership & Vehicle History 1-owner personal vehicle [1CARFAX Ve...T4MG106749 , PDF] Colorado-owned since new [1CARFAX Ve...T4MG106749 , PDF] Clean CARFAX no accidents or damage reported [1CARFAX Ve...T4MG106749 , PDF] No structural damage or airbag deployment No open recalls reported [1CARFAX Ve...T4MG106749 , PDF] Clean title - Why This Sierra AT4 Stands Out Desirable Duramax diesel + AT4 combination One-owner, clean Colorado history Strong mix of off-road capability and daily comfort Proven reliability with recent service Excellent value compared to newer diesel trucks This 2021 GMC Sierra 1500 AT4 Duramax 4x4 delivers premium off-road capability, diesel efficiency, and everyday usability available now at AutoNation Chrysler Dodge Jeep Ram Arapahoe .

Condition

Good

Color

gray

Year

2021

Engine Description

Duramax 3L I-6 diesel direct injection, DOHC, variable valve control, intercooled turbo, diesel, engine with 277HP