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  • Stock photo**
    • Not provided
    • No accidents, 1 owner, personal use only
    • Oviedo Chrylser Jeep Dodge Ram Fiat (268 mi away)
    • Blind Spot Monitorin...
    • Parking sensors
    • Upgraded Engine
    • Electronic Folding M...
    • Towing Hitch
    Close

    Located in La Grange, TX / 268 miles away from McAllen, TX

    CARFAX One-Owner.10-Speed Automatic, 4WD, Jet Black Vinyl.4WD Duramax 6.6L V8 Turbodiesel 10-Speed Automatic

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49SEY3RF149756
    Stock: D10351TA
    Certified Pre-Owned: No
    Listed since: 05-16-2025

  • Stock photo**
    • 57,263 miles
    • No accidents, personal use only
    • Southfork Chrysler Dodge Jeep Ram (289 mi away)
    • 4WD
    • Perf Leather-Appoint...
    • Heated Driver & Fron...
    • Apple CarPlay
    • Rear Cross Traffic A...
    Close

    Located in Manvel, TX / 289 miles away from McAllen, TX

    New Price!South Fork Chrysler Jeep Dodge Ram is pleased to offer this wonderful-looking 2024 GMC Sierra 3500HD in Summit White. This vehicle has passe...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49UEY1RF281068
    Stock: RF281068A
    Certified Pre-Owned: No
    Listed since: 05-21-2025

  • New Listing
    Stock photo**
    • 52,519 miles
    • No accidents, 2 owners, personal use only
    • Hall Chevrolet GMC (462 mi away)
    • Sunroof/Moonroof
    • Upgraded Engine
    • Adaptive Cruise Cont...
    • Heads up display
    Close

    Located in Canton, TX / 462 miles away from McAllen, TX

    Heated/Cooled Leather Seats, Navigation, Trailer Hitch, Heated Rear Seat, 4x4, Turbo Charged, Alloy Wheels, Bed Liner, AUDIO SYSTEM, 13.4" DIAGONAL PR...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49WEYXRF217607
    Stock: 2140PA
    Certified Pre-Owned: No
    Listed since: 06-07-2025

  • Stock photo**
    • 62,769 miles
    • No accidents, 1 owner, personal use only
    • Sewell Ford (465 mi away)
    • Sunroof/Moonroof
    • Upgraded Engine
    • Adaptive Cruise Cont...
    • Heads up display
    Close

    Located in Odessa, TX / 465 miles away from McAllen, TX

    For over a century, the Sewell Family has humbly served its clients. Our clients become our friends, and we work to treat them as honored guests in ou...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49WEY0RF147194
    Stock: 579831A
    Certified Pre-Owned: No
    Listed since: 06-03-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • New Listing
    Stock photo**
    • 74,485 miles
    • No accidents, 1 owner, personal use only
    • Kian Motors (479 mi away)
    • Power Driver Seat
    • Upgraded Engine
    • Multi-Zone Climate C...
    • Auto Climate Control
    • Towing Hitch
    Close

    Located in Plano, TX / 479 miles away from McAllen, TX

    This GMC Sierra 3500HD has a strong Turbocharged Diesel V8 6.6L/ engine powering this Automatic transmission. WINTER GRILLE COVER, TRANSMISSION, ALLIS...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49TEYXRF135116
    Stock: P135116
    Certified Pre-Owned: No
    Listed since: 06-06-2025

    • 129,563 miles
    • 1 accident, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Carsandpickups.com (288 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Katy, TX / 288 miles away from McAllen, TX

    Stock: 266269**1 Owner***4x4**Duramax 6.6L Turbo-Diesel V8 Engine**Allision Automatic Transmission**Crew Cab Denali Edition**Brand New 20' Custom Mayh...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49WEY9LF266269
    Stock: 266269
    Certified Pre-Owned: No
    Listed since: 05-07-2025

    • 52,813 miles
    • 1 accident, 1 owner, personal use only
    • Rockdale Country Ford (316 mi away)
    • Upgraded Engine
    • Towing Hitch
    Close

    Located in Rockdale, TX / 316 miles away from McAllen, TX

    Sierra 3500HD Denali Ultimate, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, Onyx Black, Alpine Umber Leather, 12 Speakers, 120-V...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49YEY9RF236547
    Stock: 236547T
    Certified Pre-Owned: No
    Listed since: 03-23-2025

    • 66,215 miles
    • 1 accident, 1 owner, personal use only
    • Chevrolet GMC Of Corsicana' (420 mi away)
    • 4WD
    • Heated Seats
    • Back Up Camera
    • Remote Start
    • Heated & Cooled Seat...
    Close

    Located in Corsicana, TX / 420 miles away from McAllen, TX

    4WD!!!, ONE OWNER, Well Maintained, Remote Start, Heated Seats, Dual Climate Control, Heated & Cooled Seats, Still in Warranty, Leather, Back Up Camer...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49UEY2NF220550
    Stock: NF220550
    Certified Pre-Owned: No
    Listed since: 05-23-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
    • 4,176 miles
    • No accidents, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Peltier Ford (483 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Longview, TX / 483 miles away from McAllen, TX

    Clean CARFAX. Onyx Black 2025 GMC Duramax 6.6L V8 Turbodiesel 4D Crew Cab Sierra 3500HD Denali Ultimate 10-Speed Automatic 4WDOdometer is 1238 miles b...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT4UYEY4SF242633
    Stock: F4041A
    Certified Pre-Owned: No
    Listed since: 05-18-2025

    • 11,739 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Lewisville Autoplex (477 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Lewisville, TX / 477 miles away from McAllen, TX

    Clean CARFAX.Pre-Qualify for Low Finance Rate & 100k Mile Extended Service Plan, 90 Day/3k Mile Limited Warranty, Free Clean CARFAX Report, Autoplex N...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT4UYEY6SF149127
    Stock: 20169
    Certified Pre-Owned: No
    Listed since: 04-08-2025

  • $60,998
    good price
    $7,547 below market
    • 52,158 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • CarMax (In-stock online)
    • Transfer available from CO to TX*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Loveland, CO / 1,057 miles away from McAllen, TX

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49VEY0MF254068
    Stock: 26699943
    Certified Pre-Owned: No

    • 102,743 miles
    • No accidents, 2 owners, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Rocky Mountain Truck Stop (294 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Austin, TX / 294 miles away from McAllen, TX

    2021 GMC SIERRA 3500HD DENALI 4X4 6.6L DURAMAX TURBO-DIESEL V-8 W/ 4WD WE FINANCE! CLICK HERE! SE HABLA ESPA OL! FEATURES INCLUDE: 6.6L DURAMAX TURBO-...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49WEY9MF117989
    Stock: 117989
    Certified Pre-Owned: No
    Listed since: 03-25-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • New Listing
    $59,998
    good price
    $2,902 below market
    • 69,332 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • CarMax (In-stock online)
    • Transfer available from CT to TX*
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Waterbury, CT / 1,784 miles away from McAllen, TX

    CarMax values transparency and wants you to love your next car, not settle on it. Certain vehicles may have unrepaired safety recalls. Check nhtsa.gov...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49WEYXMF255850
    Stock: 26816717
    Certified Pre-Owned: No

    • 85,481 miles
    • No accidents, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Vincent Motor Company (438 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Abilene, TX / 438 miles away from McAllen, TX

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49WEY3MF162250
    Stock: 162250
    Certified Pre-Owned: No

  • $53,990
    fair price
    $33 below market
    • 112,778 miles
    • No accidents, 1 owner, personal use only
    • 6'10” bed, 6.6l, 8cyl
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Bend, OR / 1,784 miles away from McAllen, TX

    CarFax No Accidents Reported,CarFax 1-Owner,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Heads-Up Display,Heated Seats,Heated Steering Wh...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49WEY4MF135039
    Stock: MF135039G
    Certified Pre-Owned: No

  • New Listing
    • 57,801 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Escamilla Ford (81 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Hebbronville, TX / 81 miles away from McAllen, TX

    You won't want to miss this excellent value! It just arrived on our lot this past week! A turbocharger further enhances performance, while also preser...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49WEY2MF105294
    Stock: T1677A
    Certified Pre-Owned: No
    Listed since: 05-28-2025

  • Advertisement

    Special offers available

    2025 GMC Sierra HD Denali
    $46,300
    starting MSRP
    • 2 Trims
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • Stock photo**
    • 88,868 miles
    • No accidents, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Peters Chrysler Jeep Dodge Ram (488 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Longview, TX / 488 miles away from McAllen, TX

    10-Speed Automatic, 4WD, Dark Walnut/Slate Leather.This 2021 GMC Sierra 3500HD SLT in White Frost Tricoat comes with the following features: Duramax 6...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49UEY4MF169874
    Stock: 25C1321A
    Certified Pre-Owned: No
    Listed since: 05-08-2025

    • 51,722 miles
    • No accidents, 2 owners, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Covert Bee Cave (285 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Bee Cave, TX / 285 miles away from McAllen, TX

    Unstoppable Power & Premium Comfort: The 2021 GMC Sierra 3500HD Denali with Duramax Diesel and Advanced Trailering!Command the toughest jobs and cruis...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT49UEY5MF224591
    Stock: FA7560
    Certified Pre-Owned: No
    Listed since: 05-31-2025

    • 3,044 miles
    • No accidents, 1 owner, personal use only
    • Leif Johnson Ford of Manor (289 mi away)
    • Upgraded Engine
    Close

    Located in Manor, TX / 289 miles away from McAllen, TX

    Start the year off right!!! ASK US ABOUT OUR AT HOME TEST DRIVES & HOME DELIVERIES WITH HUGE SAVINGS @ RIATA FORD in Manor, TX just one mile East of T...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT4UUEY4SF119164
    Stock: 52525911R
    Certified Pre-Owned: No
    Listed since: 04-13-2025

    • 154 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Lifted Trucks (318 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Humble, TX / 318 miles away from McAllen, TX

    This Lifted 2025 GMC Sierra 3500HD includes a 3-inch Cognito Lift with Fox 2.0 Shocks and 22-inch DDC Wheels with Toyo Open Country Tires Installed by...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT4UYEY2SF168449
    Stock: TX04102
    Certified Pre-Owned: No
    Listed since: 10-27-2024

    • 193 miles
    • No accidents, 1 owner, personal use only
    • 8'2” bed, 6.6l, 8cyl
    • Lifted Trucks (318 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Humble, TX / 318 miles away from McAllen, TX

    This 2025 GMC Sierra 3500HD includes a 3-inch Cognito Leveling kit with Fox 2.0 Shocks and 24-inch KG1 Wheels with Fury Tires Installed by our Lift Te...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    Listing Information:

    VIN: 1GT4UYEY0SF148278
    Stock: TX03995
    Certified Pre-Owned: No
    Listed since: 02-26-2025

Showing 148 - 168 out of 264 listings

Consumer Reviews for the GMC Sierra 3500HD

Read recent reviews for the GMC Sierra 3500HD
Overall Consumer Rating
4.3 out of 5 stars21 Reviews
Write a vehicle reviewSee all 21 reviews
  • 5 star
    (71%)
  • 4 star
    (0%)
  • 3 star
    (14%)
  • 2 star
    (14%)
  • 1 star
    (0%)
5 out of 5 stars

WHAT A TRUCK

Bill S., 04/05/2020
2020 GMC Sierra 3500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl 6A)
I purchased this Denali two weeks ago. I absolutely love this truck. The ride is so smooth and power band is incredible. What a huge difference between my 2008 GMC 2500HD Duramax, its like night and day... I love all the high tech features with the 2020's from the cameras to the front and rear LED lighting. Oh yea forgot about that first of its kind tailgate. Now that's a very … useful tailgate, I can see Ford, Dodge and Chevrolet using the same basic tailgate in the near future. I really cant wait to haul my 5th wheel with this truck. Once I make that first trip I will update this review regarding the towing... A big thank you for Thompsons GMC in Placerville, CA for such a great purchasing experience. It’s been about a year since I purchased my GMC 3500 Denali and wanted to update my review. I still love this truck so much. I’ve towed my 5th wheel RV approximately 8000K miles. This truck tows my 5th wheel like a dream. The cooling system is definitely a 100% improvement over my 2008 while towing in the warmer weather. About the only thing I’d like to see is GM add more information to the heads up display (HUD) like your blind spot indicators. I’m glad we bought when we did because I hear that dealers are having a tough time receiving new trucks. Bottom line is this, I’d buy this truck all over again absolutely No Regrets!!!!
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Used 2020 GMC Sierra 3500HD in McAllen, TX Values

Estimated values
2020 GMC Sierra 3500HD Denali 4dr Crew Cab 4WD LB (6.6L 8cyl Turbodiesel 10A) with no options
ConditionTrade-InPrivate PartyDealer Retail
Outstanding$48,244$52,222$56,061
Clean$47,222$51,085$54,808
Average$45,518$49,190$52,719
Rough$43,303$46,726$50,003

The average list price of a used 2020 GMC Sierra 3500HD in McAllen, Texas is $71,429. The average mileage on a used GMC Sierra 3500HD 2020 for sale in McAllen, Texas is 56,791. Based on the average mileage of 56,791 for used 2020 GMC Sierra 3500HD for sale in McAllen, TX and using an average vehicle condition rating, which means the vehicle may have a few mechanical and/or cosmetic problems and may require a considerable amount of reconditioning, we appraise the average trade-in value of a used GMC Sierra 3500HD 2020 in McAllen, Texas to be $45,518.

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