2026 GMC Sierra 1500 AT4
$4,195 more than this car
- 36 mi
- 4WD
- Automatic
- Gasoline
- Truck
O'Neil GMC · Warminster, PA · 0 mi away
6 miles · truck · Price dropped $2,000

Sterling Metallic 2026 GMC Sierra 1500 AT4 4WD 10-Speed Automatic 3.0L I6 This 2026 GMC Sierra 1500 AT4 in Sterling Metallic features: 22/26 City/Highway MPG O'Neil GMC in Warminster serving Philadelphia since 1965. See the rest of our inventory at ONEILGMC.COM. Price excludes tax, tags, title, license, and dealer fees, additional rebates may apply, but internet price does include the following rebates:$2000 - GMC Bonus Cash. Exp. 11/30/2026 $6250 - Buick & GMC Consumer Cash Program. Exp. 11/30/2026 $4,000 - O'Neil GMC Discount – Available to all customers. excl. 2026 Sierra 1500 PRO Exp. 12/31/2027
Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.
Among the lowest-priced · 100% of 43 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 5, 2026. 2 price changes at this dealership: $64,607 → $61,100 (−$3,507).
Market activity: O'Neil GMC cut prices on 47 GMC Sierra 1500 by an average of $2,003
AutosXchange Intel Hub: Price changes for this model in Pennsylvania · This model in the Intel Hub · Market movers in Pennsylvania
Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 13); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.
Same 2026 Sierra 1500 AT4 · new · within 50 miles of Warminster, Pennsylvania. Showing the 12 nearest of 43 comparable cars for sale, nearest first.
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2026 GMC Sierra 1500 AT436 miles · O'Neil GMC · Warminster, PA · 0 mi away$65,295$4,195 more than this car
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2026 GMC Sierra 1500 AT468 miles · Fred Beans GMC of Doylestown · Doylestown, PA · 10 mi away$63,262$2,162 more than this car
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2026 GMC Sierra 1500 AT49 miles · Fred Beans GMC of Doylestown · Doylestown, PA · 10 mi away$75,118$14,018 more than this car
2026 GMC Sierra 1500 AT4Hill Buick GMC · Newtown Square, PA · 25 mi away$66,627$5,527 more than this car
2026 GMC Sierra 1500 AT4Hill Buick GMC · Newtown Square, PA · 25 mi away$67,063$5,963 more than this car
2026 GMC Sierra 1500 AT4Hill Buick GMC · Newtown Square, PA · 25 mi away$67,063$5,963 more than this car
2026 GMC Sierra 1500 AT4Hill Buick GMC · Newtown Square, PA · 25 mi away$67,063$5,963 more than this car
2026 GMC Sierra 1500 AT4Hill Buick GMC · Newtown Square, PA · 25 mi away$67,063$5,963 more than this carAll years and trims. Nearest first.
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
O'Neil GMC · Warminster, PA · 0 mi away
2026 GMC Sierra 3500 HD Denali Ultimate DRW6,383 miles · O'Neil GMC · Warminster, PA · 0 mi away$90,345
2026 GMC Sierra 1500 Pro6 miles · O'Neil GMC · Warminster, PA · 0 mi away$46,220
2026 GMC Sierra 1500 Elevation6 miles · O'Neil GMC · Warminster, PA · 0 mi away$46,345
2026 GMC Sierra 1500 Elevation6 miles · O'Neil GMC · Warminster, PA · 0 mi away$46,635
2026 GMC Sierra 1500 Elevation6 miles · O'Neil GMC · Warminster, PA · 0 mi away$46,790
2026 GMC Sierra 1500 Elevation7 miles · O'Neil GMC · Warminster, PA · 0 mi away$46,840
2026 GMC Sierra 1500 Elevation6 miles · O'Neil GMC · Warminster, PA · 0 mi away$47,130
2026 GMC Sierra 1500 Elevation6 miles · O'Neil GMC · Warminster, PA · 0 mi away$47,130