2018 GMC Sierra 2500HD Denali Crew Cab SB 4WD

The 2018 GMC Sierra 2500HD Denali in Quicksilver Metallic with Jet Black interior delivers heavy-duty Duramax diesel power, premium Denali refinement, and 4WD capability for drivers who want serious truck strength without giving up first-class comfort. Powered by a Duramax 6.6L V8 Turbodiesel engine and paired with an Allison 1000 6-speed automatic transmission, this Sierra 2500HD Denali brings massive torque, confident towing performance, and smooth power delivery in a truck built to handle real work while still looking every bit the high-end pickup it is. With 116,004 miles, this Denali still offers strong value, upscale presence, and the kind of broad heavy-duty appeal that keeps a well-equipped diesel truck in demand. Entertainment and Connectivity Features Touchscreen infotainment display Apple CarPlay integration capability Android Auto integration capability Bluetooth hands-free connectivity USB charging and media ports Steering wheel mounted audio and phone controls Voice recognition capability Premium audio system capability Navigation capability Digital driver information display Added Features Denali premium trim package Quicksilver Metallic exterior Jet Black interior 4WD capability Duramax 6.6L V8 Turbodiesel performance Crew Cab configuration Premium leather-appointed seating Heated and ventilated front seats Power-adjustable front seats with memory settings Chrome Denali-specific exterior accents Strong towing and hauling appeal Bold heavy-duty luxury truck presence Safety Features Rear vision camera Front and rear park assist capability Electronic Stability Control Anti-lock braking system Advanced airbag system Tire pressure monitoring system Traction control system Hill start assist capability Trailer sway control Child safety locks Standard Features LED signature lighting capability Premium alloy wheels Dual-zone automatic climate control Power windows and door locks Remote start capability Spacious Crew Cab interior Rear seat air vents Power-folding side mirrors Premium interior trim and accents Denali-specific styling details Mechanical Features Duramax 6.6L V8 Turbodiesel engine Allison 1000 6-speed automatic transmission Four-wheel drive Heavy-duty suspension system Four-wheel disc brakes capability Electric power steering Integrated towing capability Strong diesel torque for towing and hauling Built for heavy-duty work, travel, and demanding use Smooth long-haul diesel performance Why drivers choose Port Lavaca Auto Group for their next vehicle Trusted dealership serving Texas drivers with transparent, pressure-free buying experiences Large selection of quality SUVs, trucks, and cars ready for immediate delivery Knowledgeable product specialists who help match drivers with the right vehicle Flexible financing options for a wide range of buyers Ongoing customer support and service after the sale Strong reputation backed by consistent five-star Google reviews Customer Review Highlight We shopped around quite a bit before buying, and Port Lavaca Auto Group stood out right away. They were professional, easy to talk to, and made sure everything was clear from start to finish. Heather W., March 2026 From its proven Duramax diesel power and 4WD capability to its premium Denali trim and roomy Crew Cab comfort, the 2018 GMC Sierra 2500HD is built for drivers who want heavy-duty truck capability, refined luxury, and the confidence to tow, haul, and travel without compromise.

Additional Information

Navigation System,Driver Alert Package,Duramax Plus Package,Heavy-Duty Handling/Trailering Suspension Package,Off-Road Package,Preferred Equipment Group 5SA,Trailering Equipment,7 Speakers,AM/FM radio: SiriusXM,Bose 7 Speaker Sound System,CD player,HD Radio,Premium audio system: GMC Infotainment System,Radio: AM/FM/SiriusXM/HD w/Navigation,Single Slot CD/MP3 Player,SiriusXM Satellite Radio,Steering Wheel Audio Controls,Air Conditioning,Automatic temperature control,Dual-Zone Automatic Climate Control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,110-Volt AC Power Outlet,Bluetooth® For Phone,Memory seat,Power driver seat,Power steering,Power windows,Power Windows w/Driver Express Up & Down,Power-Adjustable Pedals For Accelerator & Brake,Remote Keyless Entry,Remote keyless entry,Remote Vehicle Starter System,Steering wheel mounted audio controls,Universal Home Remote,Manual Tilt-Wheel/Telescoping Steering Column,Speed-sensing steering,Traction control,4-Wheel Disc Brakes,ABS brakes,Dual front impact airbags,Dual front side impact airbags,Front anti-roll bar,Front wheel independent suspension,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Remote Locking Tailgate,Power Sunroof,Body-Color Front Bumper,Rear Body-Color Bumper w/Bumper CornerSteps,Brake assist,Electronic Stability Control,Lane Departure Warning System,Exterior Parking Camera Rear,Hill Descent Control,Delay-off headlights,Front fog lights,Front Halogen Fog Lamps,Fully automatic headlights,High-Intensity Discharge Headlights,Panic alarm,Security system,Theft Deterrent System (Unauthorized Entry),Speed control,150 Amps Alternator,Engine Block Heater,Exhaust Brake,Auto-dimming door mirrors,Bodyside moldings,Bumpers: body-color,Chrome Bodyside Moldings,Chrome Door Handles,Chrome Power-Adjustable Heated Outside Mirrors,Electronic Shift Transfer Case,EZ-Lift & Lower Tailgate,Heated door mirrors,Heated Power-Adjustable Outside Mirrors,Power door mirrors,Rear step bumper,Rear Wheelhouse Liners,Turn signal indicator mirrors,Z71 Chrome Front Fender Emblems,8" Multi-Color Driver Instrument Info Display,Adjustable pedals,Apple CarPlay/Android Auto,Auto-Dimming Inside Rear-View Mirror,Auto-dimming Rear-View mirror,Color-Keyed Carpeted Floor Mats,Color-Keyed Carpeting Floor Covering,Compass,Driver & Front Passenger Vanity Mirror Visors,Driver door bin,Driver vanity mirror,Floor Mounted Console,Forward Collision Alert,Front & Rear All-Weather Floor Mats,Front Full Feature Ventilated Bucket Seats,Front reading lights,Garage door transmitter,GMC 4G LTE,GMC Connected Access,Heated Leather Wrapped Steering Wheel,Heated steering wheel,Illuminated entry,OnStar & GMC Connected Services Capable,Outside temperature display,Overhead console,Passenger vanity mirror,Rear reading lights,Rear seat center armrest,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trip computer,Ultrasonic Front & Rear Park Assist,Voltmeter,Wireless Charging,Front Bucket Seats,Front Center Armrest,Heated & Ventilated Front Bucket Seats,Heated Driver and Front Passenger Seats,Heated front seats,Perforated Leather Appointed Seat Trim,Power passenger seat,Rear 60/40 Folding Bench Seat (Folds Up),Split folding rear seat,Ventilated front seats,Passenger door bin,Black Frame-Mounted Front Recovery Hooks,Chrome Recovery Hooks,Trailer Brake Controller,Alloy wheels,Chrome wheels,Wheels: 20" Chrome Cast Aluminum,Deep-Tinted Glass,Power Sliding Rear Window w/Defogger,Variably intermittent wipers,3.73 Rear Axle Ratio,4.10 Rear Axle Ratio