2021 GMC Sierra 2500HD

VEHICLE OVERVIEWThe 2021 GMC Sierra 2500HD Base equipped with the 6.6L V8 Direct Injection and Variable Valve Timing (VVT) gasoline engine delivers exceptional heavy-duty capability, proven reliability, and impressive power for demanding jobs. Producing 401 horsepower and 464 lb-ft of torque, this robust V8 provides strong towing and hauling performance while maintaining smooth operation for everyday driving. Built on a durable heavy-duty platform, the Sierra 2500HD offers a spacious and functional cabin, advanced safety features, and the toughness needed for work or recreation. Powerful, dependable, and ready for the toughest challenges, the Sierra 2500HD is engineered to get the job done with confidence.FEATURES4WDLT245/75R17E all season tires17 steel wheelsHeavy duty 80 amp batteryZ85 suspension packageForward Collision AlertAutomatic Emergency Braking4.2 color Driver Information CenterRear Park AssistTire Pressure Monitoring SystemPerimeter lightingTeen Driver modeRear vision cameraFront 40/20/40 split bench seatCloth seat trim4 way manual driver passenger seat adjustersColor keyed carpeting w/ mats (option)Power rear windows w/ express downRemote keyless entrySteering wheel mounted cruise controlSteering wheel audio controlsAir conditioningElectric rear window defoggerGMC Infotainment System w/ AM/FM audio6 speaker audio system4.2 color Driver Information CenterUSB connectivityBased on CarFax as of 6/3/2026. Remaining warranty may be different at the time of sale based on additional age and mileage since publication, warranty and usage history or inaccuracies on CarFax. Additionally, some warranties are limited to first owners only and are non-transferable. Please verify warranty coverage with the vehicle manufacturer prior to purchase.