2021 GMC SIERRA 1500 Parts & Accessories

HP Tuners VCM Suite MPVI4 Credit Pro Packages

HP Tuners Introduces VCM Suite MPVI4 Credit Pro packages, the latest evolution of their industry-leading OBDII interface. Built for professionals and enthusiasts alike, the computer programmers connect your vehicle to VCM Suite software (5.2+) for faster, smarter, and more powerful tuning and diagnostics than ever before. With upgraded hardware, expanded connectivity, and future-ready Wi-Fi capabilities, the MPVI4 redefines what's possible in performance calibration and data acquisition. Models are available with 0, 2, 4, 6, or 8 credits. HP Tuners VCM Suite MPVI4 Credit Pro packages feature: * Improved standalone logging: the most powerful device yet, capable of delivering standalone logging performance on par with VCM scanner and a wired connection * Upgraded hardware architecture: New internal processor for improved data throughput and flashing performance; 30x more memory than previous generation MPVI3 * High-speed USB-C connectivity: Faster, more reliable communication with your PC and vehicle * Bluetooth 5.2: Seamless wireless connection for scanning, logging, and TDN support * Wi-Fi ready (future update): Wireless VCM Suite connectivity coming soon * Enhanced storage and efficiency: Increased onboard memory for robust logging sessions * Improved OBDII fitment: A revised, tapered design means a more secure connection and better compatibility with even more makes/models * Built-In Pro feature set: Standard on every MPVI4, enabling standalone data logging and external sensor integration with PROLINK+ * RGB status LEDs: Clear visual indicators for power, connection, and activity status * Cross-Platform Compatibility: Works with VCM Suite (5.2+), TrackAddict, and RaceRender

4.33 out of 5 stars ( 6 )

$599.95

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$699.93

PowerStop Z36 Truck and Tow Brake Upgrade Kits

PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. PowerStop Z36 Truck and Tow brake upgrade kits are recommended for trucks, 4x4s, and SUVs that not only work hard, but play hard as well. They come with everything you need, including premium stainless steel hardware, for an easy, bolt-on installation. The low-dust Z36 Extreme ceramic brake pads are reinforced with carbon fiber to provide severe-duty stopping power without sacrificing everyday drivability. These pads are paired with Evolution drilled, slotted, and zinc plated rotors that keep brake temperatures down by maximizing heat dissipation, critical for those long mountain descents. Whether towing a boat or trailer, hauling for the jobsite, or tackling a tough off-road trail, you'll get an easy and affordable, bolt-on performance upgrade with PowerStop's Z36 Truck and Tow brake upgrade kits. Features and Benefits<ul><li>This complete brake kit has been engineered to handle the added stress of towing, hauling, mountainous driving and lifted trucks</li><li>Proprietary Carbon-Fiber Ceramic Z36 brake pads enhance the strength of a typical ceramic brake pad compound to handle heavier loads</li><li>Stainless-steel pad shims resist the increased temperatures common on heavy duty applications</li><li>Low-dust braking validated through on-vehicle 3rd party tests in Los Angeles, showing on average 30% less dust versus OE</li><li>Drilled & Slotted performance rotors provide maximum cooling</li><li>Bolt-on upgrade for stock brakes, no modifications necessary</li><li>Includes stainless-steel installation hardware and high-temperature ceramic brake lubricant</li><li>Brake rotors, pads & hardware engineered to work together to increase the overall braking power on vehicles with heavier loads</li><li>Rotors are zinc plated for maximum protection against rust</li><li>Buy with confidence from the originator & industry leader of brake kits</li></ul>

4.77 out of 5 stars ( 2807 )

$670.61

Air Lift WirelessAir 2nd Generation On-Board Air Compressor EZ Mount Systems

Air Lift WirelessAir 2nd generation on-board air compressor EZ mount systems give you everything you need for the fastest, easiest installation possible. EZ Mount systems package the manifold and upgraded, heavy-duty compressor into one convenient, pre-assembled and factory-tested bracket—giving you everything you need to have full control of your air springs in no time at all. Control the air like a boss with your Air Lift WirelessAir 2nd generation EZ mount kit. Features and items: * Inflate and deflate each air spring independently to different pressures * LCD-display wireless controller * One-touch control from inside or outside vehicle is perfect for uneven/top-heavy loads * Two user-defined memory buttons * Compact, dual-path design * Bluetooth-enabled manifold allows for over-the-air software updates * All wiring, hardware, and fittings required for installation

4.38 out of 5 stars ( 8 )

$671.03

Melling AFM/MDS Delete Combo

Melling offers their engine cylinder deactivation kits for converting active fuel management engines to non-active fuel management versions. These AFM (active fuel management) or MDS (multi-displacement system) delete combos include a variety of components to help complete the changeover. Order the Melling AFM/MDS delete combo best suited for your application. Each kit includes: * MDS delete camshaft (1) * Non-MDS hydraulic roller lifters (16) * Lifter guides for Non-MDS engines (4) Application dependent components include: * AFM/MDS solenoid plugs (4) * Camshaft thrust plate (1) * Variable Valve Tming (VVT) oil control valve (1) Notes: * When installing a delete cam, the active fuel management lifters must be replaced using non-active fuel management lifters. * The valve lifter guides used in non-active fuel management engines differ from those used in active fuel management engines and must be replaced for this application. * The AFM/MDS solenoids must be replaced using non-MDS plugs. * The vehicle engine control module/powertrain control module must be reprogrammed to turn off the active fuel management system in the operating software. * Pushrod length must be checked during installation to verify the correct length.

4.5 out of 5 stars ( 6 )

$641.99

On Sale

DiabloSport Pulsar LT Control Modules

The DiabloSport Pulsar LT is a one-of-a-kind inline control module that offers feature combinations never before seen in a standalone module. Adjust throttle response levels, tire size adjustment, TPMS options, speed limiter, and more without tuning or modifying the vehicle. The Pulsar LT connects directly to the vehicle computer system and makes its changes inline with the other modules. Utilizing steering wheel controls, Pulsar LT owners can make all the changes they desire at any time, driving or parked. Order the model compatible with your vehicle. Pulsar LT features: * Speed limiter adjustment (82 to 140 mph) * TPMS adjustment (25 to 99 psi) * Tire size correction (29 50.9) * Axle ratio (2.00 6.99) * Clear DTCs * Auto Start/Stop Disable * DFM disable * Multiple throttle sensitivity levels * On-the-fly adjustability via steering wheel controls

4.67 out of 5 stars ( 21 )

$599.95

$538.95

On Sale

DiabloSport inTune i3 Platinum Computer Programmers

DiabloSport inTune i3 Platinum computer programmers come pre-loaded with industry-best Diablo tunes created by their experienced, professional calibrators. They too, are performance enthusiasts addicted to horsepower and racing—and they appreciate the need for custom tunes to take their vehicles to the next level with additional modifications. inTune i3 Platinum units will get your ride "dialed-in," whether you've added a cam, headers, a supercharger, or power-adder. The i3 performance programmers work hand-in-hand with CMR (Chip Master Revolution), allowing you (and the tuning shop of your choice) to tune specifically for your aftermarket modification—from there, the sky is the limit! You've made a significant investment in premium parts for your vehicle. Now let the DiabloSport inTune i3 Platinum computer programmers tie all the ingredients together to make your ride stand out! Order the model designed for your vehicle application.

4.09 out of 5 stars ( 152 )

$585.95

$526.95

ReadyLift Suspension Leveling Kits

ReadyLift Suspension leveling kits are the fastest, safest, and least expensive way to level your truck or make room for oversized wheels and tires as large as 37 in. on most full size trucks (varies by vehicle). Regardless of your suspension, get up to 3 in. of lift without a major hassle or sacrificing ride quality and comfort. ReadyLift thoroughly tests each kit to ensure that your truck will be leveled without overloading or adding excessive strain to any of your factory suspension components. Additional features of ReadyLift Suspension leveling kits: * Custom-designed for your specific year, make, and model * Ideal for eliminating sag caused by a winch, heavy bumper, or plow * Most kits cost 1/3 less than their competition. * Fast, simple installation takes about 1/3 the time of other kits * Steel kits have a durable powdercoated finish * Aluminum kits are corrosion-resistant * Coil spring spacers, expertly indexed forged torsion key spacers, and steel tower extensions are available * Custom, progressive-wound coil springs are offered for specific applications * Torsion keys have up to a 100 rating on the Rockwell(B) index scale, 25 percent stronger than most OEM torsion keys * All mounting hardware is included Note: A wheel alignment is recommended after installation of your new ReadyLift leveling kit.

4.65 out of 5 stars ( 31 )

$529.95

Air Lift LoadLifter 5000 Ultimate Air Spring Kits

Air Lift LoadLifter 5000 Ultimate air spring kits feature an internal jounce bumper for maximum ride comfort. They use 2-ply reinforced commercial-grade bellows, which mount between the spring and frame and can be inflated from 5 to 100 psi—to level loads up to 5,000 lbs. on large pickups and vans, wreckers, ambulances, motorhomes, and commercial trucks. LoadLifter 5000 Ultimate kits include bellows, jounce bumpers, air lines, fittings, brackets, mounting hardware, and instructions. They're engineered for installation in about two hours. Order the kit designed for your make and model vehicle.

4.78 out of 5 stars ( 160 )

$553.01

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$619.24

On Sale

Go Rhino Bed Bars

Rhino bed bars from Go Rhino will add intimidating off-road style to your pickup. Constructed from 3 in. diameter steel tubing, these bed bars stand tough—and they come in a black powdercoat, chrome, or polished stainless finish to trick out any truck. Go Rhino bed bars feature a complete bolt-together design with no exposed welds or mounting hardware and also include hard plastic gaskets to eliminate any metal-to-metal contact. Choose your bed bars in single, double, or triple-bar style to get the right look for your truck. For even more utility, add an optional light bar and lights (sold separately) to your Go Rhino bed bars!

4.17 out of 5 stars ( 6 )

$739.99

$628.99

ACDelco Differential Carriers

Have to replace the differential carrier on your vehicle? ACDelco differential carriers are genuine OEM replacements with the fit of original equipment. Made with top-notch OEM-quality, these units are built to not only last, but keep your vehicle operating safely.

5.0 out of 5 stars ( 2 )

$548.99

RoadActive HD Suspension Systems

For vehicles that operate under load, daily or distance, RoadActive HD suspension systems should be considered a necessity. They come fully assembled out of the box and ready for installation. Installing an active suspension to your rear leaf spring suspension will upgrade your truck's load carrying, vehicle stability, and control without compromising your ride. These HD systems add critical strength to your leaf springs—but will not compromise ride quality, with or without a load. The patented design also enhances vehicle performance by controlling sway, body roll, axle wrap, wheel hop, and bottoming out. Once installed, no maintenance or adjustments are ever required. Kits are available for hundreds of vehicles from the 1970s and up.

4.5 out of 5 stars ( 12 )

$589.00

Air Lift Load Controller II Air Compressors

Air Lift air compressors are designed for use with their Load Controller II systems. If you're looking for replacement compressors for your system, they provide the power that you need to inflate your air lines.

Not Yet Reviewed

$619.99

Granatelli Motor Sports Malevolent Coil Packs

Granatelli Motor Sports Malevolent coil packs deliver nearly twice the voltage as the competition. Rated at up to 85,000 V, these nasty little units not only increase power to your plugs, but improve fuel economy, throttle response, and idle characteristics. Malevolent coil packs are bred of a one-piece design that offers you a direct OEM replacement with simple plug-and-play installation—and they won't void your factory warranty! Increase your engine efficiency with improved combustion, powered-up though the intense-performing Granatelli Motor Sports Malevolent coil packs. Order the individual pack or set recommended for your vehicle and engine application.

5.0 out of 5 stars ( 15 )

$702.54

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$738.15

PowerStop Z23 Evolution Sport Brake Upgrade Kits

PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. Forget standard, off-the-shelf parts. PowerStop's Z23 Evolution Sport brake upgrade kits come with everything you need--pads, rotors, and premium stainless steel hardware for an easy, bolt-on upgrade for your daily-driver. Along with increased braking power, the carbon fiber ceramic brake pads feature a low-dust formula to keep those wheels looking great while you say goodbye to nasty brake dust. These pads combine with drilled and slotted rotors to ensure a cool, smooth ride that protects against rust and corrosion. Give your daily driver the easy and affordable performance upgrade it deserves with PowerStop Z23 Evolution Sport brake upgrade kits.

4.72 out of 5 stars ( 3094 )

$621.12

BBK Shorty Headers

Shorty headers from BBK will help your vehicle produce an extra 8 to 15 hp. Constructed from mandrel-bent steel tubing with 3/8 in. thick die-stamped flanges, the exhaust units are available in tube diameters to fit a variety of engine sizes. (Unless otherwise noted, these headers are designed to fit the vehicle as it came from the manufacturer; this includes components like cylinder heads, chassis, steering, motor mounts, body mounts, and bushings, etc.) If your vehicle is using aftermarket components, parts from other applications, or custom-altered parts, then it is the installer's responsibility to verify fitment.

3.82 out of 5 stars ( 310 )

$569.99

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$599.99

Summit Bucks

Firestone Ride-Rite Air Helper Spring Kits

Firestone Ride-Rite air helper springs are heavy-duty, convoluted air springs that mount between the suspension and frame of your vehicle. They're designed to improve ride and handling, increase traction, and reduce suspension fatigue. Ride-Rites are equipped with individual inflation valves, so you can level your vehicle front-to-rear or side-to-side when you're carrying off-center loads. They can boost your load-carrying capacity from 3,200 to 5,000 lbs. per set. Some drilling may be required on certain models. Order the Firestone Ride-Rite air helper springs designed for your vehicle application.

4.66 out of 5 stars ( 247 )

$594.12

Westin Grate Steps Running Boards

Westin's grate steps running boards are engineered to provide maximum traction without having to sacrifice on style. The step surface width features an aggressive punch tread design allowing traction in any weather condition. The unique serrated edges help clean snow, dirt, and mud off your boots to keep your truck cab clean. These running boards are stylishly formed with fully welded edges and a custom diecast riveted logo badge. They are available in universal lengths 54 in., 68 in., 75 in., 79 in., 83 in., 86 in. and 90 in. and require a vehicle-specific mount kit for installation (sold separately). Order the model to fit your application. Additional features: * Solid 1-piece steel construction * E-coated base coat for long-lasting corrosion protection against the elements * Attractive textured black finish * Ideal for construction, commercial, vans and utility use

4.0 out of 5 stars ( 1 )

$525.99

Powertrax Grip Pro Traction Systems

Powertrax Grip Pro traction systems are the latest design in differential technology. They combine the smooth operation of a limited-slip differential, with the strength of a fully machined, forged steel case. Using 3x2 spiral gear engineering, the Powertrax Grip Pro delivers progressive and variable traction. Based on throttle input, you are in control of how much traction is applied. These differential systems are great for use where finesse is just as important as brutal traction. On the road or track, in the rain or snow, Grip Pro is a winner! The systems come fully assembled and there are no friction plates—so you can use any gear oil you like, including full synthetic and racing lube.

4.27 out of 5 stars ( 22 )

$658.99

On Sale

TruXedo Pro X15 Tonneau Covers

TruXedo is taking the style of their Low Pro tonneau covers to the next level with the Pro X15. The Pro X15 uses the same signature innovations that TruXedo is known for like a free floating hook-and-loop system, automatic tensioners to keep the tarp tight, and an easy trigger latch for quick access to the bed. TruXedo then adds 15 degree rails to give you an extra low profile look. With TruXedo Pro X15 covers, you can keep your cargo secure and dry without sacrificing your trucks great looks.

4.91 out of 5 stars ( 35 )

$579.99

$519.99

Bilstein B8 Control Arms

Bilstein B8 control arms offer a direct-fit upgrade for factory upper control arms on trucks and SUVs. The kits contain a pair of control arms that correct the caster alignment for better straight-line stability with lifted suspensions; while the improved pivot angles increase wheel travel and reduce stress on the joints. These rugged chromoly arms with a durable finish feature a tubular design which allows for more spring and shock clearance, along with greasable polyurethane bushings and heavy-duty ball joints for the ideal combination of ride quality and durability with minimal maintenance. Compatible with all their shocks and coilover kits, Bilstein B8 control arms come with detailed instructions and the necessary hardware for easy installation (all components are replaceable). Pairs are available for hundreds of vehicles from the early 2000s and up.

5.0 out of 5 stars ( 5 )

$741.00

VEGE Remanufactured Cylinder Heads

VEGE Remanufactured cylinder heads are a popular choice for performance and value. With its advanced and efficient production process, backed by more than eight decades of experience, VEGE is able to supply remanufactured cylinder heads with a level of quality that equals that of new OEM products—at extremely competitive prices. The rebuilt cylinder heads are carefully inspected, cleaned, and then fully machined and assembled with top-of-the-line components. Unless otherwise noted, the assemblies include a cast iron or aluminum cylinder head, intake and exhaust valves, valve springs, retainers, locks, stem seals, rocker arm studs, and more. Many heads include rocker arms. Nearly a thousand models are available, for fitment on countless applications.

3.79 out of 5 stars ( 47 )

$540.99

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$671.99

aFe Scorcher High-Performance Ignition Coils

aFe Power offers Scorcher high performance ignition coils for a wide range of cars, trucks, and vans—including models by Chrysler, Dodge, Jeep, Ram, BMW, Cadillac, Chevrolet, GMC, Ford, Lincoln, Lexus, Scion, Toyota, Audi and Volkswagen from 2000 and up. These premium coils are a direct replacement upgrade over your stock originals. They feature a lower primary resistance than factory coils, resulting in a high energy spark that ensures complete combustion from idle to redline. Scorcher ignition coils keep pace with the demands of higher RPM ranges and at wide-open throttle, always delivering the peak performance you expect. Order the model recommended for your vehicle. Additional details: * Up to 20 percent more spark energy * Increase horsepower and torque * Improved drivability and smoother idle * Easier cold starts * Longer coil life * Available individually or in a set of 4, 6, or 8

4.5 out of 5 stars ( 4 )

$533.00

Fluidampr Harmonic Dampers

Using only three parts (a laser-welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two), SFI-approved Fluidampr harmonic dampers can control all crankshaft vibration--not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.

4.77 out of 5 stars ( 146 )

$501.13

Rough Country Performance Cat-Back Exhaust Systems

Upgrading your exhaust note has never been easier! Rough Country Performance cat-back exhaust systems provide an aggressive, throaty growl and killer looks. These durable exhaust systems are fine tuned to improve airflow and deliver the perfect aftermarket exhaust note that will put a smile on your face every time you hit the gas. Each kit features a set of high-temperature-resistant, dual-wall 304 black stainless tips with RC logo for an improved, aggressive look. Plus, each kit conveniently installs onto the factory hangers and features stainless clamps for easy assembly with no welding required. Choose the kit made for your vehicle. Additional notes: * Aggressive, guttural sound * Vehicle-specific tune for maximum performance * 409 stainless exhaust pipe with mandrel-bent, 16-gauge tubing * 409 stainless muffler with RC logo * 304 stainless clamps for easy installation (no welding) * Exhaust installs in factory hangers

5.0 out of 5 stars ( 3 )

$599.95

2021 GMC SIERRA 1500 Parts and Accessories