2020 GMC Sierra 1500 AT4
$798 less than this car
- 66,763 mi
- 4WD
- 10-Speed Automatic
- Diesel
- Truck
National GMC · American Fork, UT · 0 mi away
90,158 miles · truck · Price dropped $100

10-Speed Automatic, 4WD, Jet Black W/Kalahari Accents Leather. Steel Metallic 2021 GMC Sierra 1500 AT4 4WD 10-Speed Automatic 3.0L I6 22/26 City/Highway MPG You just found your new vehicle! Whether you're looking for a new car, truck, SUV or car we have the vehicle you need! We have a great selection of premium GMC Sierra 1500, 2500HD, 3500HD, Yukon, Terrain, Acadia, Chevrolet Silverado, Ford F-150, F-250, F-350 Toyota Tacoma and Tundra as well as Dodge Ram 1500, 2500 and 3500 models. We're known for our selection of Duramax, Powerstroke and Cummins trucks in popular Lariat, Platinum, Raptor, Laramie, Rubicon, Unlimited, Trailhawk, TRX, Limited, High Country, LTZ, LS, LT, Z06, Denali and AT4 trims. Whether youâre looking for a crew cab, Megacab, long bed, short bed or standard bed; we have it all! We sell more than just Buick and GMC! We even carry specialty products like Porsche, Range Rover, SRT, Tesla, Mercedes AMG, BMW M, Audi A, Q, S, RS and Lexus. If you're looking for something a little more custom, we have a selection of built and customized trucks that will fit your budget! Need something offroad capable? We have a huge selection of Wrangler, Gladiator, 4Runner and Bronco models. Need to move the whole family? We have the Expedition, Suburban, Tahoe, Explorer or Escalade you want. AWD vehicles to safely conquer the Utah snow, RWD vehicles for performance or track focused vehicles, 4WD for rock climbing and extreme off-roading; we carry it all. We offer luxury vehicles with heated seat, cooled seat, Apple-Car Play, backup camera, blind spot, adaptive cruise. Pick any year you want! 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023: we have a selection of vehicles that fit any budget. We carry the best! Only at National Buick GMC. www.nationalbuickgmc.com.
Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.
In the typical middle range · 50% of 6 similar listings ask more than this car.
How we calculate market value: comparable cars for sale now plus their last listed prices.
Price tracked by AutosXchange since Nov 9, 2026. 1 price change at this dealership: $39,446 → $39,346 (−$100).
Market activity: GMC Sierra 1500 prices in Utah: 24.8% of listings cut in 48 hours
AutosXchange Intel Hub: Price changes for this model in Utah · This model in the Intel Hub · Market movers in Utah
Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 14); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.
Same 2020–2022 Sierra 1500 AT4 · used · any miles · within 50 miles of American Fork, Utah. All 6 comparable cars for sale, nearest first.
$798 less than this car
National GMC · American Fork, UT · 0 mi away
$10,298 less than this car
National GMC · American Fork, UT · 0 mi away
$9,311 less than this car
NeXgen Motors · Lindon, UT · 9 mi away
$3,142 more than this car
Provo GMC Cadillac · Provo, UT · 17 mi away
$4,318 more than this car
Low Book Sales · South Salt Lake, UT · 20 mi away
$4,853 more than this car
Salt Lake Valley Chevrolet · West Valley City, UT · 23 mi away
2020 GMC Sierra 1500 AT466,763 miles · National GMC · American Fork, UT · 0 mi away$38,548$798 less than this car
2020 GMC Sierra 1500 AT4126,226 miles · National GMC · American Fork, UT · 0 mi away$29,048$10,298 less than this car
2021 GMC Sierra 1500 AT478,169 miles · NeXgen Motors · Lindon, UT · 9 mi away$30,035$9,311 less than this car
2021 GMC Sierra 1500 AT425,210 miles · Provo GMC Cadillac · Provo, UT · 17 mi away$42,488$3,142 more than this car
2022 GMC Sierra 1500 AT468,707 miles · Low Book Sales · South Salt Lake, UT · 20 mi away$43,664$4,318 more than this car
2021 GMC Sierra 1500 AT421,035 miles · Salt Lake Valley Chevrolet · West Valley City, UT · 23 mi away$44,199$4,853 more than this carAll years and trims. Nearest first.
National GMC · American Fork, UT · 0 mi away
Doug Smith Chrysler Dodge Jeep Ram - American Fork · American Fork, UT · 0 mi away
National GMC · American Fork, UT · 0 mi away
National GMC · American Fork, UT · 0 mi away
National GMC · American Fork, UT · 0 mi away
National GMC · American Fork, UT · 0 mi away
National GMC · American Fork, UT · 0 mi away
National GMC · American Fork, UT · 0 mi away
2021 GMC Sierra 2500 HD AT479,913 miles · National GMC · American Fork, UT · 0 mi away$53,426
2022 GMC Sierra 1500 Limited SLT71,074 miles · Doug Smith Chrysler Dodge Jeep Ram - American Fork · American Fork, UT · 0 mi away$37,082
2022 GMC Sierra 3500 HD Denali101,626 miles · National GMC · American Fork, UT · 0 mi away$53,548
2023 GMC Sierra 1500 Denali52,439 miles · National GMC · American Fork, UT · 0 mi away$49,648
2019 GMC Sierra 1500 Denali88,874 miles · National GMC · American Fork, UT · 0 mi away$37,346
2019 GMC Sierra 2500 HD DBL CAB 4WD 158.160,069 miles · National GMC · American Fork, UT · 0 mi away$33,548
2019 GMC Sierra 1500 Denali151,694 miles · National GMC · American Fork, UT · 0 mi away$28,348
2019 GMC Sierra 1500 AT499,157 miles · National GMC · American Fork, UT · 0 mi away$26,546