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O'Neil GMC · Warminster, PA

2026 GMC Sierra 2500 HD Pro

6 miles · truck · Price dropped $2,500

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelSierra 2500 HD
TrimPro
Stock numberT835
Mileage6 miles
BodyPickup
Engine6.6L 8-cyl
Cylinders8
Displacement6.6L
TransmissionAutomatic
Drivetrain4WD
FuelGasoline
ExteriorSummit White
InteriorJet Black, Cloth Seat Trim
Towing16000

Vehicle description

Summit White 2026 GMC Sierra 2500HD Pro 4WD 10-Speed Automatic 6.6L V8 This 2026 GMC Sierra 2500HD Pro in Summit White features: Recent Arrival! 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:$1000 - Buick & GMC Consumer Cash Program. Exp. 11/30/2026

Features & options (93)

  • Bluetooth®
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Keyless Entry
  • Wi-Fi Hotspot
  • Emergency Brake Assist
  • Lane Departure Warning
  • Forward Collision Warning
  • Navigation System
  • Rear View Camera
  • Entertainment System
  • Cruise Control
  • Pickup bed includes bed assist step (Deleted when (ZW9) pickup bed delete is ordered.)
  • Push Button Start
  • Transfer case, two-speed, electronic shift with push button controls (Requires 4WD models.)
  • Auto-locking rear differential
  • Four wheel drive
  • Air filter, heavy-duty
  • Air filtration monitoring
  • Trailer brake controller, integrated
  • Recovery hooks, front, frame-mounted, Black
  • Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
  • Suspension Package (Not available with (X31) Off-Road Package.)
  • Steering, Recirculating Ball with smart flow power steering system
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • Brake lining wear indicator
  • Wheels, 17" (43.2 cm) painted steel, Silver
  • Tires, LT245/75R17E all-season, blackwall
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door (Deleted with (ZW9) pickup bed delete.)
  • Bumper, front chrome lower
  • Bumper, rear chrome with bumper CornerSteps
  • Bed Step, Black integrated on forward portion of bed on driver and passenger side (Not available on (ZW9) pickup bed delete.)
  • CornerStep, rear bumper
  • Cargo tie downs (12), fixed, rated at 500 lbs per corner
  • Moldings, beltline, Black
  • Grille (Chrome with flat black grille insert bars.)
  • Headlamps, Animated LED projectors LED turn signals and Daytime Running Lamps
  • IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • Taillamps, LED Signature Tail, Incandescent Brake, Turn & Reverse Lamps
  • Glass, solar absorbing, tinted
  • Door handles, Black grained
  • Tailgate, standard (Deleted with (ZW9) pickup bed delete.)
  • Tailgate, gate function manual, no lift assist (Deleted with (ZW9) pickup bed delete.)
  • Tailgate and bed rail protection caps, top (Deleted with (ZW9) pickup bed delete.)
  • Audio system feature, 6-speaker system (Requires Crew Cab or Double Cab model.)
  • Bluetooth for phone connectivity to vehicle infotainment system
  • Wireless phone projection for Apple CarPlay and Android Auto
  • Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Seats, front 40/20/40 split-bench with covered armrest storage and under-seat storage (lockable)
  • Seat trim, Vinyl
  • Seat adjuster, driver 4-way manual
  • Seat adjuster, passenger 4-way manual
  • Seat, rear 60/40 folding bench (folds up), 3-passenger (includes child seat top tether anchor) (Not available with Regular Cab model.)
  • Floor covering, rubberized-vinyl (Not available with LPO floor liners.)
  • Steering wheel, urethane
  • Steering column, Tilt-Wheel, manual with wheel locking security feature
  • Driver Information Center, 3.5" diagonal monochromatic display
  • Rear Seat Reminder (Requires Crew Cab or Double Cab model.)
  • Exterior Temperature Display, located in radio display
  • Compass, located in instrument cluster
  • Windows, power front, drivers express up/down
  • Window, power front, passenger express down
  • Windows, power rear, express down (Not available on Regular Cab models.)
  • Door locks, power
  • Remote Keyless Entry
  • Cruise control, steering wheel-mounted
  • USB Ports, 2, Charge/Data ports located on instrument panel
  • Power outlet, front auxiliary, 12-volt
  • Air conditioning, single-zone
  • Air vents, rear (Not available with Regular Cab model.)
  • Mirror, inside rearview, manual tilt
  • Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
  • Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Daytime Running Lamps, LED signature lighting
  • LED Signature DRL's
  • OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
  • HD Rear Vision Camera (Not available with (ZW9) pickup bed delete. Removed with (UV2) HD Surround Vision.)
  • Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching (Deleted with (ZW9) pickup bed delete.)
  • Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Rear Seat Belt Indicator (Requires Crew Cab or Double Cab model.)
  • Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
  • DriveType: Four Wheel Drive
  • Fuel System: Direct Injection
  • Fuel Tank Capacity: 36 gal
  • Fuel Type: Gasoline Fuel
  • Horse Power: 401
  • Rear Wheel: Single
  • Trailering Capacity: 16000 lbs

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 50 miles of Warminster, Pennsylvania
Asking price$55,425Dealer asking price · 6 mi
Market value$57,015Market value · based on 8 comparable cars
vs. market Fair price-2.8%Fair price · based on 8 comparable cars

Where this price sits

In the typical middle range · 50% of 8 similar listings ask more than this car.

$53,425lowest$68,191highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

-2.8%
−25%Market value+25%
Fair price$1,590 below the market value of $57,015

Price range

$55,425
$53,425$68,191
5th lowest price of 9 similar listings within 50 milesTick marks the market value · range of 8 similar listings

AutosXchange Insights

  • Compared with 8 new 2026 GMC Sierra 2500 Pro listings within 50 mi.
  • Priced $1,590 below the market value of 8 comparable cars.
  • 5th lowest price of 9 similar listings within 50 miles.
  • About 6 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # T835 — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 5, 2026. 1 price change at this dealership: $57,925 → $55,425 (−$2,500).

$54k$55k$56k$57k$58k$59kNov 5Nov 6Nov 7Nov 9Nov 10Nov 11−$2,500 Nov 6

Market activity: O'Neil GMC raised prices on 3 2026 GMC Sierra 2500 HD AT4 by $490 each

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 11); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2026 Sierra 2500 Pro · new · within 50 miles of Warminster, Pennsylvania. All 8 comparable cars for sale, nearest first.

More GMC Sierra 2500 near Warminster

All years and trims. Nearest first.