
- SEMA Built 2021 Sierra 2500 AT4
- Ebony Twilight Metallic exterior
- Jet Black with Kalahari Tan Accents interior
- AT4 Premium Package
- 12″ Cognito Lift with Fox shocks
- 28×16 Brushed Maxed Forged Wheels
- 40″ Fury Tires
- Hornblasters Spare Tire Replacement Horn
- Fusion Bumpers
- Rigid Lighting
- Recon Taillights
- Amp Power steps
- AFE rear diff cover
- Painted Suspension + Axles
- Full Color match
- Stub antenna
- S&B intake
- Magnaflow exhaust
- Fusion bumpers with Rigid lights
- P3 billet tow hooks
- Painted Factory Headlights
- Painted Mirrors with switchbacks
- Backflip bedcover
- Subwoofer box under rear seat
- Led rock lights
- True spike lug nuts
- B&W adjustable to hitch
- Carbon fiber wrapped torsion bars and driveshaft
- All innergaurds have been lined
- Current owner reports they are the second owner
For those familiar with the annual SEMA exhibition in Las Vegas, you'll understand the exceptional offering of this SEMA Build 2021 GMC Sierra 4WD Crew Cab AT4. The "Specialty Equipment Marketing Association" event is a showcase of companies specializing in aftermarket products for automobiles, especially trucks. Consequently, every heavy-duty pickup featured at SEMA is brimming with a treasure trove of high-end aftermarket enhancements. With a mere 5,250 miles on the odometer, our featured 2021 GMC Sierra 4WD Crew Cab AT4 is now available for sale in California, boasting a plethora of captivating upgrades.
Exterior and Interior
The first striking feature of this 2021 GMC Sierra 4WD Crew Cab AT4 SEMA Build is its towering presence, draped in commanding Ebony Twilight Metallic. It proudly stands on a 12-inch Cognito Lift, creating an imposing figure on and off the road. Rolling on 28x16 Brushed Maxed Forged Wheels, adorned with True Spike lug nuts, and enveloped by aggressive 40" Fury tires, this off-road titan is ready for any terrain. The exterior enhancements include painted factory headlights, Recon taillights, Fusion bumpers with Rigid lights, and LED rock lights for enhanced visibility in low-light conditions. Graceful entry is provided by Amp Power steps, and a backflip bed cover conceals your cargo. At the rear, you'll find a B&W adjustable hitch and the unique Hornblasters Spare Tire Replacement Horn. Every inner guard is meticulously lined, and the intricate details extend to Carbon Fiber-wrapped torsion bars and driveshaft, an AFE rear differential cover, and fully painted suspension and axles. This Sierra Crew Cab, equipped with the AT4 Premium Package, offers a comfortable interior, featuring Jet Black with Kalahari Tan Accents. The front heated and cooled seats provide a luxurious seating experience. As you settle in, you can savor the auditory delights delivered by the subwoofer box concealed under the rear seat.
Engine
Beneath the Ebony Twilight hood of the 2021 GMC Sierra 4WD Crew Cab AT4 resides a robust 6.6L Duramax V8 Diesel engine, mated to an Allison 10-speed automatic transmission. With a formidable 445 horsepower and a substantial 910 lb.ft of torque at its disposal, this truck is a potent hauler. The S&B intake ensures the engine breathes clean air, while the Magnaflow exhaust system contributes to a vigorous and commanding exhaust note, signaling the power within.
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