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2003 GMC SIERRA 1500 HD Parts and Accessories
Showing In Stock Items. Show All 26 Items.
AMP Research PowerSteps
AMP Research PowerSteps are full length automatic electric-powered running boards that instantly extend when you open your door, and then hide themselves safely out of sight when the doors close for improved ground clearance, aerodynamics, and appearance. And their attractive design and legendary reliable, all-weather performance sets a new industry standard. Features include: * High-strength, diecast aluminum-alloy linkage arms, anodized and PTFE coated to resist corrosion * Precision, zero-maintenance stainless-steel pivot pins * Extruded aluminum steps with a textured powdercoated finish for maximum grip and durability * Weatherproof, OEM-quality electric motors and wiring harness with sealed weathertight connectors * AMP-designed electronic controller employs pressure-sensitive, pinch-proof safety technology * Integrated LED light system (standard) * 600 lbs. load capacity (each side)
( 83 )
$1,599.99
Hays Twister Full Race Torque Converters
Hays Twister Full Race Torque Converters feature a custom-designed anti-balloon plate to stop any converter ballooning and swelling in racing situations. These torque converters are designed for use with a trans-brake and great for power adders such as nitrous, superchargers, and turbos. They're available with various RPM stall speed offerings to accommodate any mixture of modifications—including higher compression ratios, aftermarket camshafts, aftermarket cylinder heads, lower gear ratios, and vehicle weight loss. Additional product features: * All Full Race Series converters are built, tested, and proven to support up to 1,000 hp * Designed to handle the extreme shock and abuse of trans-brakes, nitrous oxide, superchargers, and turbochargers * State-of-the-art spray welding process is used in select areas. Spray welding provides clean, strong, and consistent fusion while also increasing strength through hardening from higher process temperature * Each converter is hand-built and inspected in every step of assembly to ensure top-of-the-line quality * All Hays torque converters are internally welded, compared to brazing. Testing has shown welding provides longer converter life while also enhancing consistency * Heavy-duty Torrington bearings are used for greater strength and durability * Stators are chosen with high-flow vents and channels to promote cooling in heat-producing higher horsepower applications * Increased horsepower and acceleration due to a weight-saving, one-application design. Almost all Hays converters are built for one application to reduce weight, compared to a multi-bolt pattern converter * Full Race Series torque converters are offered in several different stall speeds for popular automatic transmissions.
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$1,599.95
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$1,999.95
MechMan Dual Bracket Kits
MechMan Alternators offers dual bracket kits for a wide range of applications, from the 1990s and up. Unless otherwise noted, these kits include two alternators, as well as brackets, regulators, pulleys and serpentine belts. Order the model recommended for your vehicle.
( 1 )
$1,599.00
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!
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$1,529.99
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$1,819.99
Mile Marker Hydraulic Winches
If the thought of an electric winch leaves you cold, and you want the advantages of the hydraulic type, Mile Marker's hydraulic winches are right up your alley. They deliver the pulling power you need, when you need it--up to a rated 12,000 lbs. They offer free-spooling and mechanical load locking, and incorporate stainless steel tie bars and fasteners. In addition, they can be mounted in multiple positions, and they're so corrosion-resistant and tightly sealed against the elements that they can even be used underwater. Note: An adapter kit, sold separately, is required in order to work from an OE power steering pump.
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$1,649.00
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$1,849.00
Be Cool Show & Go Modules
It's show time! Be Cool Show & Go modules will wow the judges with their mirror-like finish. Not only do these modules look show-car great, but their cooling performance will receive top honors as well! These power-cooling modules come with all you need to add stunning performance and appeal to your custom engine compartment. Pop your hood and let everyone appreciate the ultimate expression of cooling technology--the brilliance of American-made Be Cool Show & Go modules! Be Cool Show & Go cooling modules feature: * Polished performance-grade dual 1 in. core radiator * Black fans with billet Be Cool logo motor covers * Fan mounting brackets and hardware * Polished aluminum vented recovery tank * Polished billet aluminum radiator cap with Be Cool logo * Wiring harness with temperature control sending unit and relays
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$1,699.99
Yukon Gear & Axle Zip Lockers
Need traction? Zip! You've got it with Yukon Gear & Axle Zip lockers! With on-demand traction, these lockers offer an air-operated design that allows you to switch from an open differential to 100 percent lockup when you need it. Theses Yukon Zip lockers are the ultimate in driver selectability for the right traction, on-road and off. Built from forged cases with 4320 chromoly internals for added strength, they work with a variety of air-delivery systems and are assembled in the USA. Do you need gripping power--now? You have the control with Yukon Gear & Axle Zip lockers.
( 1 )
$1,571.99
Skyjacker Suspension Lift Kits
Skyjacker suspension lift kits provide a smooth, comfortable ride, while responding to on or off-road conditions. They'll help you get the right height, clearance, and attitude for your truck or Jeep—while maintaining a "factory" ride quality and improving handling. Standard Flex, Value Flex, Rock Ready, Single Flex, and Double Flex versions are available, depending on your application. The lift kits come with all of the necessary mounting hardware and detailed instructions, and they're available for 2WD or 4WD vehicles.
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$1,803.07
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$1,809.33
Summit Bucks
Eaton Electronic ELocker Differentials
Eaton electronic ELocker differentials offer you the best of both worlds. Imagine having the comfort and convenience of an open differential for around town—and the powerful traction of a full-on locker when it's necessary. This is exactly what the Eaton ELockers provide. With the push of a dash-mounted button, you decide when the differential should be fully locked for maximum traction to both wheels, or free to differentiate for the best fuel mileage and tire tread life. Whether you're running a 2WD or 4WD, open or locked, the Eaton ELockers put the driver in total control! Order the carrier designed for your axle model.
( 12 )
$1,669.99
Dee Zee Combo Transfer Tanks
Dee Zee combo transfer tanks offer room for liquid, room for gear—and plenty of extra room in your truck bed! These units combine a handy utility chest, together with a liquid transfer tank, so they take up less of your much-needed truck bed space. The tanks feature a radius curve design that eliminates key weld pressure points; they include a cap, a coupler for venting, and three stability baffles to prevent sloshing and dangerous weight transfer. Dee Zee utility chests have lockable stainless steel paddle handles. Combos are available in Brite-Tread aluminum, with or without an UltraBlack powdercoat finish; or in heavy-duty steel with a textured white or black powdercoat finish designed for corrosion protection. Choose the size and tank capacity tailored for your make/model—then conserve space while transporting everything you need with Dee Zee combo transfer tanks.
Not Yet Reviewed
$1,778.99
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$1,982.99
DeatschWerks Fuel Injectors
DeatschWerks fuels your passion for performance with fuel injectors specifically designed and engineered for your Sport Compact, Modern Muscle, and European vehicles. DeatschWerks fuel injectors are manufactured to fit your OE harness, fuel rail, and manifold. Because they are application-specific, you'll spend less time installing and tuning, so you can spend more time enjoying the increased performance of your ride! They provide an excellent spray pattern and atomization for optimized idle and tuning. Each set is flow-matched both statically and dynamically, and flow-balanced to within one to two percent. A flow report is included with each set of DeatschWerks fuel injectors.
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$1,669.00
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$1,689.00
Zumbrota Remanufactured Axle Assemblies
Zumbrota Drivetrain remanufactured axle assembles offer reliable performance at a value price. They're available for thousands of applications—from passenger and off-road vehicles, to race cars and pulling trucks. The axle tubes are straightened to OE specifications; the housings are hydro-blasted and rinsed, then tested for surface wear and cracks; and the gear patterns and rolling torque are properly adjusted to ensure optimum tooth contact. Zumbrota replaces all seals, bearings, crush sleeves, pinion nuts, and shims on the front and/or rear axle assemblies. Order the replacement model recommended for your specific vehicle.
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$1,550.99
Tuff Country EZ-Ride Suspension Lift Kits
Tuff Country EZ-Ride suspension lift kits increase fender clearance and allow for larger tires, while their EZ-Ride technology maintains a great ride. All Tuff Country EZ-Ride lift kits are of the finest quality and are engineered for simple installation at an affordable price. Most kits bolt-on, require no cutting or drilling, and are available for a wide range of vehicles in a choice of lift heights. New shocks are not required on most installations. Features of Tuff Country EZ-Ride suspension lift kits, depending on the application, may include: * Spacers mounted above the OEM coil springs/struts * Rear add-a-leafs added to the existing leaf springs * Rear cast iron lift blocks mounted below the OE leaf springs * Re-indexed factory torsion bars--without "cranking up" * Control arms that retain proper suspension geometry * Control arms with PTFE-lined FK Uni-ball joints * Dropped pitman arm and/or track bar relocating bracket(s) for proper alignment * Extended radius arms to improve articulation * Replacement radius arms that eliminate the need to drop radius arms--with no loss of ground clearance * Axle pivot brackets with camber adjustment * Transfer case drop kit * Polyurethane spring bushings * PTFE pads in leaf springs to eliminate squeaking * Tapered, snub-rolled, and pre-set leaf springs * Application-specific hardware and U-bolts
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$1,594.99
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$1,670.99
Be Cool Factory Fit Modules
Be Cool factory fit modules provide drop-in convenience, plus the capability of keeping engines up to 1,000 hp (depending on your application) running at the proper temperature! These modules feature Be Cool's factory fit radiator that has two rows of 1 in. tubes to reduce coolant temperatures, a billet filler neck, a drain petcock, and .080 in. wall hand-fabricated aluminum tanks. You can choose either a natural finish or kick it up a notch with the polished finish and dress your engine compartment with shiny performance. Be Cool offers hundreds of models and options for fitment on a wide range of vehicles. Most module kits include a new aluminum radiator, electric fan(s) with mounting brackets, a Be Cool radiator cap, an overflow catch can, and a fan wiring kit.
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$1,599.99
