2025 GMC Sierra 2500HD Denali Crew Cab 4WD

2025 GMC SIERRA 2500HD DENALI 4WD FOR SALE ONYX BLACK | DURAMAX DIESEL | DENALI LUXURY | LANCASTER PA Heavy-duty diesel power meets premium Denali refinement. This 2025 GMC Sierra 2500HD Denali 4WD in Onyx Black is built for buyers who demand serious towing capability without sacrificing luxury, technology, or comfort. Powered by the legendary 6.6L Duramax Turbo Diesel V8 paired with a 10-Speed Automatic transmission, this Sierra delivers massive torque, smooth highway manners, and best-in-class trailering confidence. If youre searching for a 2025 GMC Sierra 2500HD Denali Duramax for sale in Pennsylvania, this is a clean, well-optioned example located in Lancaster County, serving buyers across Central PA, Harrisburg, York, Lebanon, Reading, and the Mid-Atlantic region. DURAMAX DIESEL POWER & HD CAPABILITY 6.6L Duramax Turbo Diesel V8 10-Speed Automatic Transmission 4WD with 2-Speed Active Transfer Case 3.42 Rear Axle Ratio X31 Off-Road Package Hill Descent Control Gooseneck / 5th Wheel Prep Package Integrated Trailering Technology Built to tow heavy, haul confidently, and handle demanding jobsite or recreational use. NEXT-LEVEL TRAILERING & CAMERA TECH HD Surround Vision Bed View Camera with Trailer Camera Provisions Trailer Side Blind Zone Alert Trailer Viewing Software Rear Cross Traffic Alert Ultrasonic Front & Rear Park Assist Designed to make towing safer, easier, and more precise in any environment. DENALI INTERIOR PREMIUM COMFORT, HD SCALE Black Perforated Leather-Appointed Seating Heated & Ventilated Front Seats Heated Second-Row Outboard Seats Heated Steering Wheel 12-Way Power Driver & Passenger Seats with Memory Dual-Zone Automatic Climate Control Power Sliding Rear Window Power Sunroof Luxury-grade comfort that stands apart from standard heavy-duty trucks. TECHNOLOGY & CONNECTIVITY GMC Navigation System Apple CarPlay & Android Auto Wireless Charging Wireless Phone Projection Bose Premium 7-Speaker Audio System SiriusXM with 360L OnStar Services Capable Modern connectivity and infotainment built into a serious HD platform. DENALI EXTERIOR & FUNCTIONAL DETAILS Signature Chrome Denali Grille 20-Inch Ultra-Bright Machined Aluminum Wheels LED Smoked Amber Roof Marker Lamps Polished Exhaust Tip Spray-On Bedliner with GMC Logo LED Cargo Bed Lighting Rear Wheelhouse Liners Deep-Tinted Glass Clean, upscale presence with unmistakable Denali identity. WHY THIS SIERRA 2500HD DENALI STANDS OUT Sought-after Duramax + Denali configuration Loaded with trailering and safety technology Luxury interior with real heavy-duty capability Ideal for towing, business use, or high-end personal ownership Located in Lancaster, Pennsylvania, easy access for PA, NJ, MD buyers AVAILABLE NOW AT MARK MARTIN MOTORS LANCASTER, PENNSYLVANIA Duramax torque. Denali luxury. Heavy-duty confidence. This 2025 GMC Sierra 2500HD Denali is built to work hard, tow heavy, and arrive in comfort. NO HAGGLE PRICING - 106 POINT CERTIFIED INSPECTION FINANCING AVAILABLE NATIONWIDE - WE WELCOME YOUR TRADES NO PRICING GAMES WITH HIDDEN FEES! CALL US FOR YOUR OUT THE DOOR PRICE. Call Us Today @ 717-664-2222! We are located in Lancaster PA near Harrisburg and Philadelphia. Disclaimer: We do our best to make sure this information is accurate; however, we are not responsible for any errors or omissions contained on these pages. Please verify any information in question with Mark Martin Motors.

Additional Information

Navigation System,Gooseneck/5th Wheel Prep Package,Preferred Equipment Group 5SA,X31 Off-Road Package,7 Speakers,AM/FM radio: SiriusXM with 360L,Bose Premium 7-Speaker Sound System,Radio: AM/FM w/Premium GMC Infotainment System,SiriusXM w/360L Trial Subscription,Steering Wheel Audio Controls,Air Conditioning,Automatic temperature control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,120-Volt Bed Mounted Power Outlet,120-Volt Instrument Panel Power Outlet,Driver Memory,Memory seat,Power driver seat,Power steering,Power windows,Push Button Start,Remote keyless entry,Remote Vehicle Starter System,Steering wheel mounted audio controls,Universal Home Remote,Manual Tilt-Wheel/Telescoping Steering Column,Off-Road Suspension,Speed-sensing steering,Traction control,4-Wheel Disc Brakes,ABS brakes,Dual front impact airbags,Dual front side impact airbags,Emergency communication system: OnStar,Front anti-roll bar,Front wheel independent suspension,Keyless Open & Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power Sunroof,Pickup Box,Brake assist,Electronic Stability Control,Lane Departure Warning System,Hill Descent Control,Auto High-beam Headlights,Delay-off headlights,Front fog lights,Fully automatic headlights,Panic alarm,Security system,Unauthorized Entry Theft-Deterrent System,Speed control,2-Speed Active Transfer Case,220-Amp Alternator,Engine Block Heater,Exhaust Brake,Heavy-Duty 80 Amp Battery,High Idle Switch,Auto-dimming door mirrors,Bumpers: body-color,Front License Plate Kit,Heated door mirrors,IntelliBeam Automatic High Beam On/Off,LED Cargo Area Lighting,LED Smoked Amber Roof Marker Lamps,Polished Exhaust Tip,Power door mirrors,Rear step bumper,Rear Wheelhouse Liners,Signature Chrome Denali Grille,Spray-On Pickup Bedliner w/GMC Logo,Turn signal indicator mirrors,Winter Grille Cover,2 Charge-Only Rear USB Ports,2 Charge/Data USB Ports Inside Center Console,2 USB Ports,Apple CarPlay/Android Auto,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera w/2 Trailer Camera Provisions,Buckle to Drive,Compass,Driver door bin,Driver vanity mirror,Floor-Mounted Center Console,Following Distance Indicator,Forward Collision Alert,Front Pedestrian Braking,Front reading lights,Garage door transmitter,Genuine wood dashboard insert,Genuine wood door panel insert,HD Surround Vision,Heated steering wheel,Illuminated entry,OnStar Services Capable,Outside temperature display,Overhead console,Passenger vanity mirror,Rear Cross Traffic Alert,Rear reading lights,Rear seat center armrest,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trailer Cam Provisions & Trailer Viewing Software,Trailer Side Blind Zone Alert,Trip computer,Ultrasonic Front & Rear Park Assist,Voltmeter,Wireless Charging,Wireless Phone Projection,12-Way Power Driver Seat Adjuster w/Lumbar,12-Way Power Passenger Seat Adjuster w/Lumbar,Forge Perforated Leather-Appointed Front Seat Trim,Front Bucket Seats,Front Center Armrest,Heated 2nd Row Outboard Seats,Heated Driver & Front Outboard Passenger Seats,Power passenger seat,Rear Underseat Storage (LPO),Safety Alert Seat,Split folding rear seat,Ventilated Driver & Front Passenger Seats,Passenger door bin,Hitch Guidance w/Hitch View,In-Vehicle Trailering System App,Alloy wheels,Wheels: 20" Ultra Bright Machined,Deep-Tinted Glass,Front Rain-Sensing Wipers,Power Front Passenger Windows w/Express Up/Down,Power Sliding Rear Window w/Defogger,Rain sensing wipers,Variably intermittent wipers,3.42 Axle Ratio