[Home](/) / [New vehicles](/new-vehicles/) / [GMC](/new-vehicles/gmc/) / [Sierra 2500HD](/new-vehicles/gmc/sierra-2500hd/) New · Covert Buick GMC Bee Cave # 2026 GMC Sierra 2500HD AT4 VIN 1GT4UPEY7TF375141 · Stock TF375141 ![2026 GMC Sierra 2500HD AT4 in Dune, photo 1 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Ffb5061f7-17e0-4a49-84ba-18335cdf0415.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 2 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fcc2207f4-3b5f-4dc0-bb73-a3e52d83394a.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 3 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F3fc430f5-aacf-48c8-ae01-0fa070aec77b.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 4 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F42dbd6f0-b1d9-4c4d-9d5e-d928fe8e21b4.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 5 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F5d8a644d-4714-4e83-ad96-080773761436.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 6 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fb4ea74ef-56df-45a2-bc99-7618301254a5.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 7 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F4e072eee-d25c-4370-b2eb-26c998c2b556.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 8 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F9379c7ae-e6c3-46a1-9e60-130123cf973e.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 9 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F2523eccc-97c4-42d9-b4fa-583b1237d723.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 10 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fe685a4bb-8f0e-4115-95e2-39555f8c2f31.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 11 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fbb43dd48-fd36-4524-8cfe-e93b93b16109.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 12 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Faea30224-cba9-4b19-8d6d-dad836524453.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 13 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Ff664039e-fe93-4a26-b6ea-3250198e4207.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 14 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F8d867089-c6d5-4822-8396-8a11cd676d33.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 15 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F5f44c44a-6863-4466-a477-6bdd5e655130.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 16 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F9d1a5618-a6bf-4329-906a-33239d6b532c.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 17 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F18c3205a-6c58-4598-9157-4e98c808e467.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 18 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fbfcbf3cf-9ea7-46b6-9989-492a21f6620a.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 19 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fd610c7da-d9dd-40d6-a22a-0f258403c47a.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 20 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F2ecf4fcf-8441-4b7c-b19b-aeb3251cd91c.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 21 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F47ba7810-e636-45fd-a635-a3e18a160926.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 22 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F97294c30-4391-4e92-905a-df9fc3c91543.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 23 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fbfef46f0-bad5-4d9c-8b1c-8e1aafb33287.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 24 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fa22d9f70-36cf-44b2-8b60-76fae9d932ff.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 25 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F1dffa68a-a8d5-4c0f-bbc5-760ff0ee7f2c.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 26 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fdbef051f-dfb3-4ef9-b2b7-ef9994c319ba.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 27 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fac976f3c-1dfe-4ef4-b32c-871ba64ad348.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 28 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fbecd4d1f-941d-42ce-80e6-b42403106c4c.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 29 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F0606dc75-beba-49bf-bd3f-38827eee5c87.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 30 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F7e597f5a-d249-44d6-81f9-cc797a0205e1.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 31 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F00333842-2d4b-4171-86c4-1dd4d78101d2.png&w=3840&q=80)![2026 GMC Sierra 2500HD AT4 in Dune, photo 32 of 32](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fd3e63ff7-f1a6-4eff-ba59-4fab9f92f3e0.png&w=3840&q=80) 32 photos MSRP$89,710 Dealer discount−$5,489 **Manufacturer offers**Through Nov 30 GMC Bonus Cash−$2,000 Buick & GMC Consumer Cash−$2,500 Price$79,721 Price excludes tax, title, license and the $225 documentary fee. The offers as the manufacturer names them * GMC Bonus Cash−$2,000 * Buick & GMC Consumer Cash Program−$2,500 [Check availability](/inventory/new-2026-gmc-sierra-2500hd-at4-4wd-4d-crew-cab-1gt4upey7tf375141/?form=availability)[Schedule a test drive](/inventory/new-2026-gmc-sierra-2500hd-at4-4wd-4d-crew-cab-1gt4upey7tf375141/?form=test-drive)[Ask a question](/inventory/new-2026-gmc-sierra-2500hd-at4-4wd-4d-crew-cab-1gt4upey7tf375141/?form=question) [Calculate your payment](https://app.autoapr.com/reveal/4d0nhx37/1GT4UPEY7TF375141) ## Calculate your payment Close [Trading in your car for this GMC Sierra 2500HD?Get an offer for it and put it toward this one.](/value-your-trade/) Covert Buick GMC Bee Cave[(512) 954-9290](tel:+15129549290) 16501 Sweetwater Village Dr Bldg 1, Austin, TX 78738 Sales: Monday to Saturday, 9 AM to 7 PM; closed Sunday ### Details Engine 6.6L V8 diesel Transmission 10-speed automatic Drivetrain 4WD Engine Duramax 6.6L V8 Turbodiesel Body 4D Crew Cab Exterior Dune Interior Jet Black With Kalahari Accents Fuel Diesel ### Equipment 145 #### Packages * AT4 Preferred Package * AT4 Premium Plus Package * Gooseneck/5th Wheel Prep Package * Preferred Equipment Group 4SB 2 more * Technology Package * X31 Off-Road Package #### Safety * Emergency communication system: OnStar * Lane Departure Warning System * Security system * Unauthorized Entry Theft-Deterrent System 21 more * Automatic Emergency Braking * Buckle to Drive * Following Distance Indicator * Forward Collision Alert * Front Pedestrian Braking * HD Surround Vision * Inside Rearview Auo-Dimming Rear Camera Mirror * Rear Cross Traffic Alert * Ultrasonic Front and Rear Park Assist * Safety Alert Seat * Traction control * 4-Wheel Disc Brakes * ABS brakes * Dual front impact airbags * Dual front side impact airbags * Low tire pressure warning * Occupant sensing airbag * Overhead airbag * Brake assist * Electronic Stability Control * Panic alarm #### Technology * 7 Speakers * AM/FM radio: SiriusXM with 360L * Bose Premium 7-Speaker Sound System * Premium audio system: Premium GMC Infotainment System 14 more * Radio: AM/FM Stereo with Premium GMC Infotainment System * SiriusXM with 360L Trial Subscription * Steering Wheel Audio Controls * 120-Volt Bed Mounted Power Outlet * 120-Volt Instrument Panel Power Outlet * 2 Charge-Only Rear USB Ports * 2 Charge/Data USB Ports Inside Center Console * 2 USB Ports * Apple CarPlay/Android Auto * Multicolor 15" Diagonal Head-Up Display * OnStar Services Capable * Wireless Charging * Wireless Phone Projection * Steering wheel mounted audio controls #### Interior * Automatic temperature control * Electric Rear-Window Defogger * Front dual zone A/C * Rear window defroster 50 more * Driver Memory * Memory seat * Power driver seat * Push Button Start * Remote Vehicle Starter System * Universal Home Remote * Manual Tilt-Wheel/Telescoping Steering Column * Keyless Open and Start * Power Sunroof * LED Cargo Area Lighting * Auto-dimming Rear-View mirror * Floor-Mounted Center Console * Front Premium Floor Liners with Removable Carpet Insert * Heated steering wheel * Rear Premium Floor Liners with Removable Carpet Insert * Rear reading lights * Rear seat center armrest * Voltmeter * 10-Way Power Driver Seat Adjuster with Lumbar * 10-Way Power Passenger Seat Adjuster with Lumbar * Front Center Armrest * Heated 2nd Row Outboard Seats * Heated Driver and Front Outboard Passenger Seats * Heated front seats * Heated rear seats * Perforated Leather-Appointed Front Seat Trim * Power passenger seat * Ventilated Driver and Front Passenger Seats * Ventilated front seats * Power Front Passenger Windows with Express Up/Down * Power Sliding Rear Window with Defogger * Air Conditioning * Power windows * Remote keyless entry * Speed control * Compass * Driver door bin * Driver vanity mirror * Front reading lights * Illuminated entry * Outside temperature display * Overhead console * Passenger vanity mirror * Tachometer * Telescoping steering wheel * Tilt steering wheel * Trip computer * Front Bucket Seats * Split folding rear seat * Passenger door bin #### Exterior * Pickup Box * Auto High-beam Headlights * Front fog lights * Auto-dimming door mirrors 21 more * Bumpers: body-color * Front License Plate Kit * Gloss Black Header Grille and Grille Insert Bars * IntelliBeam Automatic High Beam on/Off * LED Smoked Amber Roof Marker Lamps * Off-Road High Clearance Step * Rear step bumper * Rear Wheelhouse Liners * Spray-on Pickup Bedliner with GMC Logo * Turn signal indicator mirrors * Winter Grille Cover * Wheels: 20" High Gloss Black 8 Spokes Aluminum * Deep-Tinted Glass * Front Rain-Sensing Wipers * Rain sensing wipers * Delay-off headlights * Fully automatic headlights * Heated door mirrors * Power door mirrors * Alloy wheels * Variably intermittent wipers #### Mechanical * Off-Road Suspension * Speed-sensing steering * Front wheel independent suspension * Hill Descent Control 13 more * 2-Speed Active Transfer Case * 220-Amp Alternator * Engine Block Heater * Exhaust Brake * Heavy-Duty 80 Amp Battery * Bed View Camera with Two Trailer Camera Provisions * Trailer Cam Provisions and Trailer Viewing Software * Trailer Side Blind Zone Alert * Upfitter Switch Kit (5) * Hitch Guidance with Hitch View * in-Vehicle Trailering System App * Power steering * Front anti-roll bar ### From the store Call us at 512-954-9290 This 2026 GMC Sierra 2500HD AT4 delivers commanding presence and capability with its Beige exterior and premium Jet Black leather interior featuring Kalahari accents. Built on a Crew Cab Standard Bed platform with 4WD and powered by the legendary 6.6L V8 Duramax turbodiesel engine paired with a 10-speed automatic transmission, this truck is engineered for serious work and refined comfort. \- Gooseneck/5th Wheel Prep Package with hitch platform \- AT4 Premium Plus Package \- X31 Off-Road Package with 2-speed active transfer case and hill descent control \- Duramax 6.6L V8 turbodiesel with 220-amp alternator and engine block heater \- Bose Premium 7-Speaker sound system with SiriusXM 360L trial subscription \- Multicolor 15" head-up display and HD surround vision with bed view camera \- Wireless charging and wireless phone projection \- Heated and ventilated front seats with heated rear outboard seats \- Power sunroof and spray-on bedliner with GMC logo \- Ultrasonic front and rear park assist with trailer side blind zone alert The AT4 trim elevates this workhorse with premium materials, advanced technology, and sophisticated appointments that appeal to discerning truck owners. From intelligent trailering systems to comprehensive safety features, every detail reflects GMC's commitment to capability and luxury. Visit us to experience the commanding performance and refined craftsmanship of this Sierra 2500HD AT4. Call us at 512-954-9290 Price includes: $2000 - GMC Bonus Cash. Exp. 11/30/2026 $2500 - Buick & GMC Consumer Cash Program. Exp. 11/30/2026 ## Check availability Close 2026 GMC Sierra 2500HD AT4Stock TF375141 · Covert Buick GMC Bee Cave First name Last name Email Phone An email or a phone number is enough. ZIP code (optional) Leave this field empty Check availability By submitting, you agree that Covert Buick GMC Bee Cave may contact you about this request by phone, text or email. ## Schedule a test drive Close 2026 GMC Sierra 2500HD AT4Stock TF375141 · Covert Buick GMC Bee Cave First name Last name Email Phone An email or a phone number is enough. ZIP code (optional) Preferred day (optional) Time of day (optional)Any timeMorningAfternoonEvening Leave this field empty Schedule a test drive By submitting, you agree that Covert Buick GMC Bee Cave may contact you about this request by phone, text or email. ## Ask a question Close 2026 GMC Sierra 2500HD AT4Stock TF375141 · Covert Buick GMC Bee Cave First name Last name Email Phone An email or a phone number is enough. ZIP code (optional) Your question Leave this field empty Ask a question By submitting, you agree that Covert Buick GMC Bee Cave may contact you about this request by phone, text or email. ## Similar vehicles in stock [All new vehicles →](/new-vehicles/) [![2026 GMC Sierra 2500HD AT4 in Sterling Metallic](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F9e3c36b9-c947-4edc-a55f-ed7b4aff2e7d.png&w=3840&q=80)New · Covert Buick GMC Bee Cave2026 GMC Sierra 2500HD AT4Sterling Metallic · 4WDMSRP $89,710Total savings $9,989Price$79,721Stock TF375259 · VIN 1GT4UPEY8TF375259](/inventory/new-2026-gmc-sierra-2500hd-at4-4wd-4d-crew-cab-1gt4upey8tf375259/)[![2026 GMC Sierra 2500HD Denali Ultimate in Sterling Metallic](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F41bd4003-9087-4065-a12c-d032219327c5.png&w=3840&q=80)Used · Covert Buick GMC Bee Cave2026 GMC Sierra 2500HD Denali Ultimate41,958 mi · Sterling Metallic · 4WDPrice$79,604Stock F351128A · VIN 1GT4UXEY5TF103865](/inventory/used-2026-gmc-sierra-2500hd-denali-ultimate-4wd-4d-crew-cab-1gt4uxey5tf103865/)[![2026 GMC Sierra 2500HD Denali in Sterling Metallic](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F4e93e42b-f769-4ef0-b391-19d5cbe0f1e2.png&w=3840&q=80)New · Covert Buick GMC Bee Cave2026 GMC Sierra 2500HD DenaliSterling Metallic · 4WDMSRP $91,275Total savings $11,064Price$80,211Stock TF371948 · VIN 1GT4UREY6TF371948](/inventory/new-2026-gmc-sierra-2500hd-denali-4wd-4d-crew-cab-1gt4urey6tf371948/)[![2027 Ram 2500 Laramie in Black](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2Fb7a27b12-bf58-4edb-ba20-97ace19a8e2d.png&w=3840&q=80)New · Covert CDJR Bee Cave2027 Ram 2500 LaramieBlack · 4WDMSRP $93,245Total savings $13,352Price$79,893Stock VG409819 · VIN 3C63R5FL9VG409819](/inventory/new-2027-ram-2500-laramie-4wd-4d-crew-cab-3c63r5fl9vg409819/)[![2027 Ram 3500 Laramie in Diamond Black](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F647bfb60-77de-40c5-b011-ae15fca7ea47.png&w=3840&q=80)New · Covert CDJR Bee Cave2027 Ram 3500 LaramieDiamond Black · 4WDMSRP $92,510Total savings $13,161Price$79,349Stock VG411330 · VIN 3C63RRJL0VG411330](/inventory/new-2027-ram-3500-laramie-4wd-4d-crew-cab-3c63rrjl0vg411330/)[![2026 GMC Sierra 3500HD SLE in Onyx Black](/_next/image/?url=https%3A%2F%2Fassets.cai-media-management.com%2Fresize%2F1024x1024%2Fcommon-vehicle-media%2F680bb92d-932f-4606-afe5-17f628ebc9e1.png&w=3840&q=80)New · Covert Buick GMC Bee Cave2026 GMC Sierra 3500HD SLEOnyx Black · 4WDPrice$78,072Stock TF188365 · VIN 1GD5UTEY2TF188365](/inventory/new-2026-gmc-sierra-3500hd-sle-4wd-double-cab-1gd5utey2tf188365/)