This Blue Certified 2021 GMC Sierra 3500HD Denali 4WD DRW Crew Cab is a heavy-duty diesel truck that continues to generate strong online demand across Tampa Bay, Brandon, Riverview, Wesley Chapel, Clearwater, and St. Petersburg for buyers who want premium comfort paired with serious towing and hauling capability. With just 12,472 miles, this Sierra qualifies for Blue Certification and stands out from typical used heavy-duty trucks thanks to its ultra-low mileage, top-tier Denali trim, and proven Duramax diesel performance.

Finished in Quicksilver Metallic with a Jet Black interior, this Sierra 3500HD Denali delivers a commanding presence on the road. Power comes from the highly sought-after Duramax 6.6L Turbo-Diesel engine paired with the Allison 10-speed automatic transmission, a combination known for exceptional torque, smooth power delivery, and long-term durability. The dual rear wheel configuration enhances stability under load and improves towing confidence, making this truck an ideal choice for hauling equipment, large trailers, or recreational toys throughout Central Florida. :contentReference[oaicite:0]{index=0}

This Sierra is equipped with the Denali Ultimate Package, which adds premium features buyers consistently search for online. Highlights include a rear camera mirror, multicolor head-up display, and power sunroof. The truck is also outfitted with the ProGrade Trailering System, bed view camera, integrated trailer brake controller, and gooseneck/5th-wheel prep package—features designed to simplify towing and improve visibility when managing large loads. :contentReference[oaicite:1]{index=1}

Inside, the Denali trim delivers a refined cabin designed for both work and long-distance comfort. Ventilated front seats, heated front and rear outboard seats, leather-wrapped heated steering wheel, memory settings for the driver’s seat and mirrors, and a 10-way power front bucket seating arrangement elevate the driving experience. Dual-zone climate control and wireless charging add everyday convenience, while the Bose premium sound system enhances cabin enjoyment. :contentReference[oaicite:2]{index=2}

Technology and connectivity are well represented. The GMC Premium Infotainment system includes navigation, voice recognition, Bluetooth® streaming, wireless Apple CarPlay and Android Auto capability, SiriusXM compatibility, and available connected services through OnStar with 4G LTE Wi-Fi hotspot capability. Keyless open and start, remote start, and advanced trailering camera provisions further enhance usability. :contentReference[oaicite:3]{index=3}

Safety features include Forward Collision Alert, Lane Departure Warning, Lane Change Alert with Side Blind Zone Alert, Rear Cross Traffic Alert, Automatic Emergency Braking, IntelliBeam headlamps, Following Distance Indicator, Safety Alert Seat, and HD Surround Vision with trailer camera provisions. These systems work together to support confident driving whether towing or commuting around Tampa Bay. :contentReference[oaicite:4]{index=4}

Exterior functionality is equally impressive. Chrome assist steps, power fold/extend heated trailer mirrors with auto-dim, LED reflector headlamps, LED fog lamps, LED cargo lighting, spray-on bedliner with logo, and the GMC MultiPro tailgate enhance both usability and appearance. :contentReference[oaicite:5]{index=5}

As a Blue Certified vehicle at Parks Ford, this GMC Sierra 3500HD has met Blue Certified eligibility standards and has been screened and reconditioned to provide additional reassurance beyond a typical used diesel truck. Blue Certification includes limited warranty coverage and roadside assistance, helping add confidence for buyers selecting a heavy-duty pickup. This Sierra also includes Parks Plus benefits, adding long-term ownership value through protective coatings, interior and exterior enhancements, roadside assistance support, and additional peace-of-mind benefits exclusive to