2026 GMC Sierra 1500 SLT
$495 less than this car
- 6 mi
- 4WD
- Automatic
- Gasoline
- Truck
O'Neil GMC · Warminster, PA · 0 mi away
6 miles · truck · Price dropped $2,231

Sterling Metallic 2026 GMC Sierra 1500 SLT 4WD 10-Speed Automatic EcoTec3 5.3L V8This 2026 GMC Sierra 1500 SLT in Sterling Metallic features: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:$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 · 89% of 87 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. 1 price change at this dealership: $59,296 → $57,065 (−$2,231).
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 12); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.
Same 2026 Sierra 1500 SLT · new · within 50 miles of Warminster, Pennsylvania. Showing the 12 nearest of 87 comparable cars for sale, nearest first.
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O'Neil GMC · Warminster, PA · 0 mi away
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O'Neil GMC · Warminster, PA · 0 mi away
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2026 GMC Sierra 1500 SLT6 miles · O'Neil GMC · Warminster, PA · 0 mi away$56,570$495 less than this car
2026 GMC Sierra 1500 SLT6 miles · O'Neil GMC · Warminster, PA · 0 mi away$57,065Same price
2026 GMC Sierra 1500 SLT6 miles · O'Neil GMC · Warminster, PA · 0 mi away$57,065Same price
2026 GMC Sierra 1500 SLT6 miles · O'Neil GMC · Warminster, PA · 0 mi away$57,620$555 more than this car
2026 GMC Sierra 1500 SLT6 miles · O'Neil GMC · Warminster, PA · 0 mi away$58,115$1,050 more than this car
2026 GMC Sierra 1500 SLT5 miles · O'Neil GMC · Warminster, PA · 0 mi away$59,365$2,300 more than this car
2026 GMC Sierra 1500 SLT3 miles · Faulkner Buick GMC Trevose · Trevose, PA · 7 mi away$59,763$2,698 more than this car
2026 GMC Sierra 1500 SLT3 miles · Faulkner Buick GMC Trevose · Trevose, PA · 7 mi away$59,763$2,698 more than this car
2026 GMC Sierra 1500 SLT3 miles · Faulkner Buick GMC Trevose · Trevose, PA · 7 mi away$59,860$2,795 more than this car
2026 GMC Sierra 1500 SLT4 miles · Faulkner Buick GMC Trevose · Trevose, PA · 7 mi away$61,179$4,114 more than this car
2026 GMC Sierra 1500 SLT3 miles · Faulkner Buick GMC Trevose · Trevose, PA · 7 mi away$63,168$6,103 more than this car
2026 GMC Sierra 1500 SLT3 miles · Faulkner Buick GMC Trevose · Trevose, PA · 7 mi away$63,168$6,103 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 1500 SLT21,620 miles · O'Neil GMC · Warminster, PA · 0 mi away$46,860
2026 GMC Sierra 3500 HD Denali Ultimate DRW6,383 miles · O'Neil GMC · Warminster, PA · 0 mi away$91,885
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