Recent Price Drop!
Reduced by $500 since Jan 07, 2026 Get a Price Drop Alert

2021 GMC Sierra 1500 Denali



Available
  • $2,971 SAVINGS
    $38,499 Apple’s Best Price


Visit our Store

Vehicle Information

VIN: 1GTU9FET3MZ399226
Stock #: R94690A
  • Body Style 4D Crew Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black
  • Mileage 57,532
  • Fuel Economy
    City/Highway 22/26 MPG
  • Engine 3
  • Transmission 10-Speed Automatic / 4WD
  • Fuel Type Diesel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

This 2021 GMC Sierra 1500 Denali delivers premium luxury, powerful capability, and refined comfort in one of GMCs top-tier half-ton trucks. With 57,372 miles, two previous owners, and no accidents, this Denali has been very well maintained and comes loaded with upscale features including the 3.0L Duramax diesel, Denali Premium Package equipment, and a long list of advanced driver-assist technology. The Denali trim provides one of the quietest, most comfortable rides in the segment with impressive towing ability and high-end materials throughout the cabin.

Key Features & Highlights

Two owners, no accidents reported

3.0L Duramax I-6 turbo-diesel engine

10-speed automatic transmission

Four-wheel drive with locking/limited-slip differential

Denali Premium Equipment Group (5SA)

Sun/moonroof

Driver Alert Package I: blind spot monitor, cross-traffic alert, lane departure warning, rear parking aid

Trailering Package with hitch guidance and hitch view

Premium Bose sound system

Heated and ventilated front seats, heated rear seats

Leather interior with memory drivers seat

Multi-zone automatic climate control

Wireless Apple CarPlay / Android Auto compatibility

WiFi hotspot capability

Power-folding heated mirrors with memory

Integrated tailgate step and spray-in bed protection (bedliner)

20 alloy wheels and all-terrain tires

Running boards, fog lamps, and daytime running lights

Safety features: front/side/curtain airbags, rear seat reminder, tire pressure monitor, stability control, traction control

Why Buy From Apple Autos?

Home of the 7-Day Money-Back Guarantee Buy with confidence, knowing you have a full week to decide.

No-Pressure, Relaxed Buying Experience Shop at your own pace with a commission-free sales team.

One Low Price, Plain & Simple, Always No haggling, no games. Just a straightforward, transparent car-buying process.

Top-Rated Dealer Hundreds of five-star Google reviews from satisfied customers.

Come see why its different here at Apple Autos. Stop by today for a test drive or call us to learn more!

Eligible Benefits

View AutoCheck report.

All Features

  • Navigation System
  • Driver Alert Package I
  • Preferred Equipment Group 5SA
  • Trailering Package
  • 7 Speakers
  • AM/FM radio: SiriusXM with 360L
  • Not Equipped w/HD Radio
  • Premium audio system: GMC Infotainment System
  • Premium Bose 7-Speaker Sound System
  • Radio data system
  • Radio: Premium GMC Infotainment Sys w/Navigation
  • SiriusXM w/360L
  • Steering Wheel Audio Controls
  • Air Conditioning
  • Automatic temperature control
  • Electric Rear-Window Defogger
  • Front dual zone A/C
  • Rear window defroster
  • 12-Volt Rear Auxiliary Power Outlet
  • 120-Volt Bed Mounted Power Outlet
  • 120-Volt Instrument Panel Power Outlet
  • Driver Memory
  • Memory seat
  • Power driver seat
  • Power Front Passenger Windows w/Express Up/Down
  • Power Front Windows w/Driver Express Up/Down
  • Power Rear Windows w/Express Down
  • Power steering
  • Power windows
  • Remote keyless entry
  • Remote Vehicle Starter System
  • Steering wheel mounted audio controls
  • Universal Home Remote
  • Adaptive suspension
  • Auto-Locking Rear Differential
  • Electrical Lock Control Steering Column
  • Manual Tilt-Wheel & Telescoping Steering Column
  • 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
  • Power Door Locks
  • Power Sunroof
  • Brake assist
  • Electronic Stability Control
  • Hill Descent Control
  • Delay-off headlights
  • Front fog lights
  • Fully automatic headlights
  • Panic alarm
  • Security system
  • Theft Deterrent System (Unauthorized Entry)
  • Speed control
  • 170 Amp Alternator
  • 220 Amp Alternator
  • Auxiliary External Transmission Oil Cooler
  • Engine Block Heater
  • Heavy-Duty Air Filter
  • Adaptive Ride Control Suspension
  • Auto-dimming door mirrors
  • Bumpers: body-color
  • Chrome Wheel To Wheel Assist Steps
  • Heated door mirrors
  • LED Cargo Area Lighting
  • Power door mirrors
  • ProGrade Trailering System
  • Rear step bumper
  • Rear Wheelhouse Liners
  • Signature Denali Grille
  • Spray-On Pickup Bed Liner w/Denali Logo
  • 2 USB Ports
  • 2 USB Ports (1st Row)
  • 4G LTE Wi-Fi Hotspot Capable
  • Apple CarPlay/Android Auto
  • Auto-dimming Rear-View mirror
  • Color-Keyed Carpeting Floor Covering
  • Compass
  • Driver door bin
  • Driver vanity mirror
  • Floor-Mounted Center Console
  • Front reading lights
  • Genuine wood console insert
  • Genuine wood door panel insert
  • GMC Connected Access Capable
  • HD Rear Vision Camera
  • Heated steering wheel
  • Illuminated entry
  • Lane Change Alert w/Side Blind Zone Alert
  • OnStar & GMC Connected Services Capable
  • Outside temperature display
  • Overhead console
  • Passenger vanity mirror
  • Rear Cross Traffic Alert
  • Rear Dual USB Charging-Only Ports
  • Rear reading lights
  • Rear seat center armrest
  • Safety Alert Seat
  • Tachometer
  • Telescoping steering wheel
  • Tilt steering wheel
  • Trip computer
  • Ultrasonic Front & Rear Park Assist
  • Universal Garage Door Opener
  • Voltmeter
  • Wireless Charging
  • 10-Way Power Driver Seat Adjuster w/Lumbar
  • 10-Way Power Passenger Seat Adjuster w/Lumbar
  • Forge Perforated Leather-Appointed Seat Trim
  • Front Bucket Seats
  • Front Center Armrest
  • Heated 2nd Row Outboard Seats
  • Heated Driver & Front Outboard Passenger Seating
  • Heated front seats
  • Power passenger seat
  • Split folding rear seat
  • Ventilated Driver & Front Passenger Seats
  • Ventilated front seats
  • Passenger door bin
  • Chrome Recovery Hooks
  • Hitch Guidance
  • Hitch Guidance w/Hitch View
  • In-Vehicle Trailering App
  • Integrated Trailer Brake Controller
  • Alloy wheels
  • Wheels: 20" x 9" Multi-Dimensional Polished Alum
  • Deep-Tinted Glass
  • Power Sliding Rear Window w/Rear Defogger
  • Variably intermittent wipers
  • 3.23 Rear Axle Ratio
Vehicles You Might Like
  • $12,999 Apple’s Best Price


  • $52,000 Apple’s Best Price


All vehicle specifications, prices and equipment are subject to change without notice. See above for information on purchase financing and lease program expiration dates. Prices and payments (including the amount down payment) do not include tax, titles, tags, documentation charges, emissions testing charges, or other fees required by law or lending organizations. The estimated payments may not include upfront finance charges that must be paid to be eligible for the purchase financing program used to estimate the APR and payments. Listed Annual Percentage Rates are provided for the selected purchase financing or lease programs available on the current date. Program expiration dates reflect currently announced program end dates, but these programs are subject to change at any time. Lessees will be financially responsible for mileage beyond the elected quantity and for vehicle maintenance and repairs and excessive vehicle wear. Option to purchase at lease end for an amount may be determined at lease signing. Payments may be higher in some states. You may not be able to combine other incentives with the purchase financing or leasing programs presented above. Residency restrictions may apply. See dealer for details. Listed APR, down payment, payments, incentives and other terms are estimates for example purposes only. Information provided is based on very well-qualified buyers or lessees. The payment information provided here is not a commitment by any organization to provide credit, leases or other programs. Some customers may not qualify for listed programs. Your terms may vary. Lessor must approve lease. Credit approval required.