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.
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.
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.
2021 GMC Sierra 2500HD 4WD Crew Cab AT4
Custom Built for SEMA Show
Duramax 6.6L V8 Turbo-Diesel
Allison 10-Speed Automatic
4x4
Ebony Twilight Metallic Exterior
Jet Black With Kalahari Tan Accents Interior
Auto-Locking Rear Differential
2-Speed Autotrac Transfer Case
Traction Select System W/ Off-Road & Tow-Haul Mode
220 AMP Alternator
Heated/Ventilated Front Seats
Rear Heated Outer Seats
Heated and Leather Wrapped Steering Wheel
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
2 Owners
The Chevrolet Silverado’s corporate cousin is the GMC Sierra. It’s a smart move by General Motors to broaden their line-up across their various brands by sharing synergies. In fact, the Silverado and Sierra have been like this since 1999, when the Silverado became a separate nameplate. Hence, the first generation Silverado/Sierra was made between 1999 and 2007. In fact, variants like this 2002 GMC Sierra 2500 SLT were only made up to 2004, as the heavy-duty line. This particular truck has done a light 64,000 miles and is up for sale in Orange, California. It’s got a 6.6-liter Duramax diesel under the hood, a 62-gallon fuel tank, and is four-wheel drive. That makes it ideal for someone who wants a sturdy truck that can venture off-road when needed.
The GMC Sierra has, and continues to be a sibling to the popular Chevrolet C/K-series of pickup trucks, now going around as the Chevrolet Silverado. This is a smart strategy by General Motors – offer two similar vehicles from two different brands, with broadly similar engineering and make some tweaks here and there to differentiate them accordingly. This allows you to broaden your customer base while optimizing your development and production costs. This 1972 GMC Sierra 2500 Custom Camper is thus based on the second generation Chevy C/K, and comes from West Wendover, Nevada. It’s got under 43,000 miles on the clock, and the Custom Camper plus Sierra trim packages. It also appears to have received some refreshment due to its excellent condition.
The GMC Sierra is the sister model of the Chevrolet Silverado, and it has been this way for several years now. But, the Sierra isn’t simply a badge-swap exercise. No, it’s sits a little higher than its Chevy sibling, thanks to offering more luxury interior appointments and better refinement. But, it retains the same purposeful ability to carry loads, tow trailers and even venture off-road if needed. So, if that sounds appealing, check out this 2024 GMC Sierra 2500 HD Crew Cab that’s for sale in Marina, California. This 12,536-mile truck has got a Duramax diesel under the hood, four-wheel drive and some tasteful modifications too.
The sister model of Chevy’s Silverado, the GMC Sierra is positioned at a slightly more luxurious and upmarket point in contrast with its Bowtie sibling. Today’s Summit White fourth-generation 2021 GMC Sierra 1500 SLT Harley-Davidson Edition is a bit more special, as the name suggests. Harley Davidson and GMC have been doing this kind of special edition for quite some time now. Highlights of this 44,009-mile truck from Commercial Point, Ohio include its 6.2-liter V8, Harley-Davidson Visual Appearance Package, BDS suspension system with Fox shocks, and the SLT Premium Plus package. So if it’s a half-ton truck with character, family friendliness and off-road capability that you’re seeking, this machine packs it all.
An old icon, reborn! That’s what the GMC Hummer EV is. General Motors dusted off the famous Hummer name a few years back, and created a fittingly imposing EV pickup truck and SUV to go with it. Now placed under the GMC umbrella, the Hummer EV is quickly finding favor with old stalwarts of the brand, as well as new enthusiasts. So, if you’re on the hunt for a Hummer EV Pickup that you can get ASAP, this 2023 GMC Hummer EV Pickup Edition 1 from Greenville, South Carolina is a great choice. It’s got 1,000 horsepower to give you, which is a great headline feature, isn’t it? Plus, this Satin Gray vinyl-wrapped example boasts just under 23,000 miles on the odometer, the Edition 1 Accessory Package, and a set of Fuel Off-Road Fortress wheels! Yes, it’s a proper off-roader in case you didn’t guess already. And yes, it’s also an EV – in fact, the charging cable is also included in the sale.
This 2021 GMC Sierra 1500 Crew Cab SLT stands out through a licensed Harley-Davidson Edition visual appearance package that transforms GMC’s refined full-size pickup into a bold, lifestyle-driven statement truck. Built on the SLT Premium Plus platform and powered by the 3.0L turbocharged Duramax inline-6 diesel, this configuration is notable for delivering 460 lb-ft of torque while achieving fuel economy figures that rival midsize trucks, making it one of the most efficient diesel half-tons of its era. The combination of the factory X31 Off-Road Package with a BDS suspension system and Fox performance shocks gives the truck a visibly elevated stance without compromising everyday drivability, while 22-inch Harley-Davidson “Fat-Boy” milled aluminum wheels and exclusive branding create an immediately recognizable presence. Applied post-production by a licensed upfitter, the Harley-Davidson Edition adds rarity and visual distinction, blending GMC’s durability and comfort with Harley-Davidson’s unmistakable design identity in a package that prioritizes character and long-distance capability over factory performance theatrics.
If you’re looking for the ultimate combination of heavy-duty capability and premium comfort, this 2024 Ford F-450 Super Duty King Ranch checks every box. Designed as Ford’s top-tier dually pickup, the F-450 is built to handle serious towing and commercial-grade workloads while surrounding occupants with upscale materials and advanced tech. This example shows just 10,480 miles, making it a lightly used, near-new truck with a strong presence and even stronger capability. Finished in the deep and sophisticated Antimatter Blue over a signature Java leather interior, it carries the unmistakable King Ranch identity. With desirable options like the FX4 Off-Road Package, 360-degree camera system, and onboard power generation, this truck is equally suited for demanding job sites or long-distance hauling in comfort.
The 2022 RAM 1500 TRX Crew Cab 4x4 is the definition of a modern supertruck, combining extreme power with cutting-edge off-road engineering. Showing just 50 miles, this example is essentially brand new and presents a rare opportunity to own one of the most capable and aggressive trucks ever produced. Built to dominate both pavement and desert terrain, the TRX redefined what a factory pickup could do by pairing supercar-level performance with rugged durability. Finished in Bright White over a bold Black and TRX Red interior, this truck delivers presence, capability, and exclusivity in one package.
The Ford F-150 has long been America’s best-selling truck, but this 2022 Ford F-150 XLT Rocky Ridge Edition takes that proven platform and elevates it into something far more aggressive and distinctive. Showing 54,575 miles, this SuperCrew 4x4 blends factory capability with a full Rocky Ridge upfit, transforming it into a head-turning off-road machine. Powered by the sought-after 5.0L V8, this truck delivers classic naturally aspirated performance paired with modern technology and everyday usability. With its lifted stance, upgraded wheels and tires, and exclusive Rocky Ridge touches, this is not your average F-150—it’s built to stand out both on and off the road.
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