Highlights of this 2021 GMC Sierra 3500HD CC include: Serviced here, Non-Smoker vehicle, Excellent Condition, ONLY 38,745 Miles! 4x4, CONVENIENCE PACKAGE, TRANSMISSION, 6-SPEED AUTOMATIC, HEAV. ENGINE, 6.6L V8 SEE MORE! KEY FEATURES INCLUDE 4x4 Electronic Stability Control, Vinyl Seats, 4-Wheel ABS, Tire Pressure Monitoring System, 4-Wheel Disc Brakes. OPTION PACKAGES CONVENIENCE PACKAGE includes (AQQ) Remote Keyless Entry, (AKO) tinted glass, (C49) rear-window defogger, (DBG) outside power-adjustable vertical trailering with heated upper glass mirrors and (K34) cruise control, (AXG) power windows, express up/down driver, (AED) power windows, express down passenger and (AU3) power door locks, SEAT ADJUSTER, DRIVER 10-WAY POWER INCLUDING LUMBAR, AUDIO SYSTEM, GMC INFOTAINMENT SYSTEM WITH 7 DIAGONAL COLOR TOUCH-SCREEN, AM/FM STEREO with seek-and-scan and digital clock, includes Bluetooth? streaming audio for music and select phones; featuring wired Android Auto? and Apple CarPlay? capability for compatible phones (STD), ENGINE, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline, (401 hp [299 kW] @ 5200 rpm, 464 lb-ft of torque [629 N-m] @ 4000 rpm) (STD), HEAVY-DUTY (STD). EXCELLENT SAFETY FOR YOUR FAMILY GMC Sierra 3500HD CC with Onyx Black exterior and Jet Black interior features a 8 Cylinder Engine with 401 HP at 5200 RPM*. WHO WE ARE At Colonial West Chevrolet of Fitchburg, our staff is like family and were considered one big team. We are excited to help you in finding your next vehicle. Pricing analysis performed on 6/13/2025. Horsepower calculations based on trim engine configuration. Please confirm the accuracy of the included equipment by calling us prior to purchase.