2025 GMC SIERRA 3500HD AT4 4X4 CREW CAB <br /><br />CLEAN TITLE<br /><br />JET BLACK WITH KALAHARI ACCENTS<br />HEATED FRONT SEATS<br />VENTILATED FRONT SEATS<br />HEATED REAR SEATS<br />POWER DRIVER SEAT<br />POWER PASSENGER SEAT<br />DRIVER AND PASSENGER ADJUSTABLE LUMBAR<br />SEAT MEMORY<br />HEADS-UP DISPLAY<br />NAVIGATION SYSTEM<br />PREMIUM SOUND SYSTEM<br />ADAPTIVE CRUISE CONTROL<br />AERIAL VIEW DISPLAY SYSTEM<br />FRONT COLLISION WARNING<br />FRONT COLLISION MITIGATION<br />LANE DEPARTURE WARNING<br />CROSS-TRAFFIC ALERT<br />REAR PARKING AID<br />AT4 PREMIUM PLUS PACKAGE<br />TECHNOLOGY PACKAGE<br />X31 OFF-ROAD PACKAGE<br />GOOSENECK / 5TH WHEEL PREP PACKAGE<br />PROGRADE TRAILERING SYSTEM WITH HITCH GUIDANCE<br />POWER RETRACTABLE RUNNING BOARDS<br />6.6L V8 DIESEL TURBOCHARGED<br />10-SPEED AUTOMATIC TRANSMISSION<br />FOUR-WHEEL DRIVE<br /><br />This 2025 GMC Sierra 3500HD AT4 4X4 Crew Cab brings together Duramax diesel power, AT4 off-road capability, premium trailering technology, and upscale heavy-duty comfort in a highly equipped one-ton truck.<br /><br />Call or text to confirm availability and schedule an appointment. Mountain West Auto Group offers a wide selection of new and pre-owned vehicles, flexible financing options for qualified buyers, and trade-in opportunities to help make your next purchase simple. All advertised prices exclude tax, title, and registration. Equipment and features should be independently verified by the buyer prior to purchase. Mountain West Auto Group — Built for Your Adventure.