This 2006 GMC Sierra 3500 SLT represents a capable heavy-duty truck built for serious work and towing. The Duramax 6.6L V8 Turbodiesel paired with the Allison 1000 6-Speed Automatic transmission delivers the power and reliability you need, while the 4WD system ensures confidence in diverse driving conditions. With its gray exterior and extensive feature set, this Sierra 3500 is ready to handle demanding tasks. - Duramax 6.6L V8 Turbodiesel with Allison 1000 6-Speed Automatic transmission - 4WD with Electronic Shift Transfer Case - Power tilting and sliding sunroof with express-open and wind deflector - Power-heated, auto-dimming outside rearview mirrors with turn signals - Heavy-duty trailering equipment and wiring provisions for camper and gooseneck trailers - Skid plate package for underbody protection - OnStar Plus Package with 1-year safe and sound service - Dual 105-amp alternators for auxiliary power needs - Chrome-plated tubular assist steps and chrome-clad steel wheels - Rear seat entertainment system This truck remains well-maintained and road-ready. The heavy-duty power package, rear automatic locking differential, and external transmission oil cooler support sustained towing and hauling. Interior amenities include leather-trimmed front bucket seats with power adjustment, automatic dual-zone climate control, and steering wheel audio controls for convenience during long drives. Visit us today to inspect this Sierra 3500 and experience its commanding presence and capable performance firsthand. Shoppers comparing used cars for sale or exploring used SUVs for sale around Boulder often choose Fisher Auto for a more elevated and transparent buying experience. Many begin with a search like used cars near me and appreciate that our team offers clear guidance and thoughtful support rather than pressure. Boulder drivers trust our attention to detail, while guests from Louisville and Superior often mention how easy we make financing and trade-ins. Visitors from Broomfield and Erie rely on our straightforward communication, and shoppers traveling from Longmont or Firestone value how organized and smooth the process feels. Customers from Thornton, Brighton, Niwot, and Lafayette also appreciate having access to select Certified Pre-Owned options for added peace of mind, even while browsing a wide range of used trucks for sale and used SUVs from multiple brands. No matter what youre comparing, our goal is to help you choose the right vehicle with confidence and clarity. THE INFORMATION INCLUDED ON THIS WEBSITE DOES NOT CONSTITUTE AN OFFER TO SELL. THE INFORMATION MIGHT BE INCORRECT AND THE DEALERSHIP IS NOT LIABLE FOR ANY ERRORS. Accessories and color may vary.

Additional Information

HD Handling/Trailering Suspension Package,Heavy-Duty Power Package,Heavy-Duty Trailering Equipment,OnStar Plus Package,Skid Plate Package,6 Speakers,AM/FM radio,Audio memory,Bose Premium Speaker Sound System Feature,CD player,ETR AM/FM Stereo w/6-Disc CD Changer,Radio data system,Rear Audio Controls,Rear audio controls,XM Satellite Radio Sound System Feature,Air Conditioning,Automatic Dual-Zone Climate Control,Automatic temperature control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,10-Way Power Passenger Seat Adjuster,Memory seat,Power driver seat,Power steering,Power windows,Power Windows w/Driver & Passenger Express-Down,Remote keyless entry,Steering wheel mounted audio controls,Universal Home Remote,4-Wheel Disc Brakes,ABS brakes,Chrome Rear Bumper w/Step Pad,Dual front impact airbags,Front anti-roll bar,Front Frame-Mounted Recovery Hooks,Front wheel independent suspension,Power Door Locks,Electric Power Tilt-Sliding Sunroof w/Express-Open,Rear Seat Entertainment System,Delay-off headlights,Front fog lights,Front Halogen Fog Lamps,Fully automatic headlights,Panic alarm,Remote Keyless Entry w/2 Transmitters,Security system,Electronic Cruise Control w/Set & Resume Speed,Speed control,Heavy-Duty Rear Automatic Locking Differential,Dual Heavy-Duty 770 CCA Batteries,Engine Block Heater,External Transmission Oil Cooler,Amber Roof Marker Lamps,Black Manual Folding Outside Rear-View Mirrors,Bumpers: chrome,Chrome Grille Surround,Chrome Plated Stainless Steel Tubular Assist Steps,Electronic Shift Transfer Case,Front License Plate Bracket,Heated door mirrors,Power door mirrors,Power Heated Black Outside Rear-View Mirrors,Radiator Grille & Front Bumper Opening Covers,Rear step bumper,Auto-dimming Rear-View mirror,Black Leather-Wrapped Steering Wheel Rim,Color-Keyed Carpeted Floor Covering,Compass,Deluxe Overhead Console,Driver door bin,Electrochromic Inside Rear-View Mirror,Floor Console w/Dual Cupholders,Front reading lights,Illuminated entry,Leather steering wheel,OnStar 1-Year Safe & Sound Service,Outside temperature display,Overhead console,Overhead Mini Console w/Map Lights,Passenger seat mounted armrest,Passenger vanity mirror,Rear seat center armrest,SLT Decor,Steering Wheel Mounted Radio Controls,Tachometer,Tilt steering wheel,Trip computer,Voltmeter,10-Way Power Driver's Seat Adjuster,Driver's Seat Mounted Armrest,Front Bucket Seats,Front Power Reclining Full-Feature Bucket Seats,Heated front seats,Power passenger seat,Split folding rear seat,Ultrasoft Leather Seat Trim,Passenger door bin,Trailering Hitch Platform,16" x 7.0" Chrome-Clad Steel Wheels,16" x 7.0" Steel Wheels,Solar-Ray Deep Tinted Glass,Variably intermittent wipers