Summit Racing SpeedCard - learn how to get 10% back up to $100

Summit Racing SpeedCard - learn how to get 10% back up to $100

Beef up Your Bronco With These Deals - Shop Now!

2003 CHEVROLET SILVERADO-2500-HD Parts and Accessories

Part Groups

Results 1 - 24 of 75

On Sale

Summit Racing™ Bracket Racer SFI Harmonic Dampers

You don't have to sacrifice safety or quality to save money; our affordable Summit Racing™ bracket racer SFI dampers have been spin-tested to 12,500 rpm and carry an SFI-18.1 rating. The carbon steel dampers have an injection-molded and bonded elastomer, easy-to-read engraved timing marks, removable counterweights (where applicable), and a highly polished baked-enamel finish, so they look as good as they perform.

4.57 out of 5 stars ( 388 )

$228.99


$206.09

On Sale

MBRP PLM Series Exhaust Systems

MBRP's PLM Series exhaust systems feature a muffler delete pipe that takes the place of your muffler, providing the ultimate in exhaust flow and sound. By doing so, they increase both horsepower and torque and improve fuel economy. The systems are manufactured from heavy-duty steel pipe with an aluminized coating for maximum protection. Their specially designed 2-piece tailpipe and bolt-on hangers allow for a simple, straightforward installation. These PLM Series exhausts are available in a variety of sizes, styles, and configurations for fitment on specific vehicle applications.

4.0 out of 5 stars ( 34 )

$459.99


$399.99

On Sale

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)

4.59 out of 5 stars ( 82 )

$1,599.99


$1,399.99

On Sale

Bully Dog Triple Dog GT Diesel Tuners

The Bully Dog GT Diesel tuner unlocks more horsepower and torque to meet the unique demands you put on your vehicle. With shift-on-the-fly tuning for most applications, customizable gauges to track performance, and better control of defueling and regeneration, you'll be able to summon the low-end power to take on tough jobs or improve fuel economy for long highway hauls. Space for up to 10 custom tunes helps you adjust for the many ways you put your diesel to the test.

3.48 out of 5 stars ( 23 )

$469.00


$422.10

On Sale

Summit Racing™ Plastic/Aluminum Radiators

A Summit Racing™ plastic/aluminum radiator gives your engine bay the current cooling update it needs. These units are designed for premium performance, while fitting your vehicle's original mounts, so your ride can have a new radiator without modifications to the brackets and fittings. The radiators are available in various sizes and styles to fit your application. Efficient and economical, Summit Racing™ replacement radiators are an excellent option to restore the cooling performance your vehicle requires.

4.48 out of 5 stars ( 81 )

$206.99

$229.99


$186.29

$206.99

On Sale

Bully Dog GT Platinum Tuners

Bully Dog GT Platinum tuners are four products in one: a vehicle engine tuner, monitor, gauge, and diagnostic device. They dramatically improve the utility of your vehicle by increasing horsepower, improving fuel economy, and providing a comprehensive set of monitoring features and diagnostic functions. Bully Dog GT Platinum tuners are incomparable to other tuning products because they have the largest feature set and the widest range of vehicle applications available.

3.55 out of 5 stars ( 65 )

$469.00


$422.10

On Sale

Summit Racing™ Step Bars

Don't think you can get quality, heavy-duty step bars at a reasonable price? Think again. Our Summit Racing™ step bars deliver durable construction and attractive styling at an amazingly affordable price. They're available with a polished, or black powdercoated finish (depending on the application). Summit Racing™ step bars feature recessed step pads to provide sure footing, and an easy, no-drill installation.

4.54 out of 5 stars ( 171 )

$120.99

$199.99


$108.89

$179.99

On Sale

MBRP SLM Series Exhaust Systems

MRBP SLM Series exhaust systems are the starting point to getting the most from cold air intakes, programmers, modules, and downloaders. They're constructed to the same specifications as MRBP's top-of-the-line Pro Series. Built from 16-gauge T409 stainless steel with a muffler delete pipe, SLM units are tuned for an aggressive sound and free-flowing performance. Order the model designed for your diesel application. Features and benefits: * More pulling power * Improved throttle response * Greater fuel efficiency * Mandrel-bent tubing; minimal bend degree angles * Gets hot exhaust out fast * Drops exhaust gas temperature by up to 200 degrees F * Direct-fit to OEM hangers * Bolt-on, no-weld installation * Clamps and installation accessories included * MBRP stamped logo on exhaust tip (if tip is included) * Limited 5-year workmanship warranty. (This series may, with time, develop surface rust which is not covered with this warranty.)

4.38 out of 5 stars ( 13 )

$629.99


$569.99

On Sale

Summit Racing™ OE Replacement Flywheels

Summit Racing™ OE replacement flywheels offer a great fit and an economical price. They are manufactured from ductile iron and offer original fit and function. Replace your old flywheels with Summit Racing™ OE parts.

4.27 out of 5 stars ( 64 )

$141.99


$127.79

On Sale

VEGE Remanufactured Long Block Crate Engines

VEGE remanufactured long block crate engines are an excellent foundation for budget-minded builds. These premium-quality refurbished engines are drop-in replacements for a wide range of stock vehicles—and can be retrofitted into additional applications. Each engine is reverse-engineered to ensure that any original defects are removed. Certified technicians recondition the long blocks to factory specifications, replacing wearable parts or machining them back to OE standards. The engines are thoroughly tested and calibrated to deliver maximum performance and long-term durability. Order the VEGE remanufactured crate engine recommended for your vehicle.

3.83 out of 5 stars ( 69 )

$3,574.99

$3,740.99


$3,374.99

$3,540.99

On Sale

Summit Racing™ Truck Shocks

Summit Racing™ truck shocks are designed specifically to give your truck a factory-quality ride, both on and off-road. The twin-tube, hydraulic-action shocks feature multi-stage valving and are available for front or rear positions. They're offered in a variety of extended and collapsed lengths for stock-height and lifted applications. All truck shocks come standard with red polyurethane bushings and boots.

3.7 out of 5 stars ( 121 )

$36.99


$33.29

On Sale

ACCEL Extreme 9000 Ceramic Spark Plug Wire Sets

ACCEL Extreme 9000 ceramic wires are the cure for burnt spark plug boots. These wires provide excellent energy delivery while providing the highest level of RFI/EMI suppression. They're ideal for custom engines, boats, and RVs—plus great trackside accessories when you need to make up a replacement wire. ACCEL Extreme 9000 ceramic spark plug wire sets are available straight or in right-angle configurations. Order the set recommended for your vehicle and engine application. More product features include: * Finished with stainless steel spark plug terminals and ceramic spark plug boots * Each wire features ultra-high temperature double silicone wire rated at 600 degrees F * Ferro-Spiral core wire developed for performance use * Capable of withstanding up to 2,000 degrees F

4.43 out of 5 stars ( 458 )

$178.95

$211.95


$134.95

$137.95

On Sale

SCT X4 Power Flash Programmers

SCT X4 Power Flash programmers arrive to you pre-loaded with dyno-proven tune files for select vehicles, to unlock your vehicle's hidden potential! Programming your vehicle with one of SCT's pre-loaded tune files is as easy as 1-2-3. Simply plug the OBD-II connector into vehicle's OBD-II port, select the pre-loaded tune files using the simple to navigate menu and in minutes the X4 programs your vehicle for your particular driving style. Additional features and facts about SCT X4 Power Flash programmers include: * Stores up to 10 custom tune files * Full color LCD display * High-speed data logging/monitoring * Reads/clears DTC trouble codes * Dual analog inputs * Most popular vehicles supported * Installs quickly and easily * Easy restoration back to stock * User adjustable vehicle parameters * USB Interface cable included

4.04 out of 5 stars ( 97 )

$399.00


$314.99

On Sale

MBRP Performance Series Exhaust Systems

MBRP Performance Series exhaust systems maximize exhaust flow and minimize exhaust temperatures. They're manufactured from 100 percent aluminized steel and come standard with MBRP's smaller muffler. Fully sealed tubing adds years to your system, avoiding rust-through on seams. Performance Series units are road, track, and dyno-tested; and they're specially tuned to deliver an aggressive exhaust note. Order the model designed for your specific vehicle. Other features and benefits: * Fully mandrel-bent tubing and minimal bend degree angles increase airflow * Better gas mileage * Bolt-on, no-weld design for easy installation * Direct-fit to the OEM hangers; clamps and accessories included * Available for gas truck and diesel applications * Limited one-year workmanship warranty

4.33 out of 5 stars ( 43 )

$484.99

$514.99


$434.99

$464.99

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!

4.8 out of 5 stars ( 5 )

$739.99

$1,819.99


$628.99

$1,546.99

On Sale

Fluidyne High Performance Radiators

Fluidyne high performance radiators feature aluminum end tanks and 100 percent NOCOLOK brazed aluminum cores, rather than the epoxy-bonded types used by others. These cores are built using high-efficiency cooling fins that deliver maximum performance and durability. The radiators are offered in universal sizes, as well as exact fit, with all brackets, fittings, and hoses set up to match the original equipment layout for easy installation—and they meet ISO 9001 standards for quality. Fluidyne radiators are available in crossflow and downflow styles, and a range of sizes for vehicle-specific applications; some models also include a transmission cooler. Keep your ride cool on the hottest days or at the track with a Fluidyne radiator.

4.32 out of 5 stars ( 31 )

$599.00


$539.10

On Sale

Summit Racing™ Exhaust Flanges

Summit Racing offers exhaust flanges in a variety of 2- and 3-bolt pattern sizes and shapes. The 3/8 in. thick flanges are available in steel or stainless steel—and are designed to ensure an accurate, leak-proof seal for your exhaust components. Order the model that fits your pipe diameter and other fitment specs.

4.41 out of 5 stars ( 94 )

$28.99


$26.09

On Sale

BakFlip G2 Tonneau Covers by BAK

Keep your cargo protected from the elements—and thieves! BAK BakFlip G2 tonneau covers combine the convenience of a folding design with hard tonneau security and durability. You can fold the BakFlip G2 back for complete truck bed access or fold it down and lock it in place to protect your valuable cargo. Its aluminum panels won't shrink or stretch during weather changes and are capable of holding up to 300 pounds of evenly distributed weight. Features include: • Sleek, low-profile fit • Aluminum panels resist changes in weather • Treated to resist the harmful effects of UV rays—no cracking or warping • Innovative locking arms secure the cover when its folded against your rear window • Tongue and groove weatherstripping keeps rain and snow out • No-drill installation

4.61 out of 5 stars ( 28 )

$1,049.99


$949.99

On Sale

MBRP Armor Plus Series Exhaust Systems

MBRP exhaust systems offer material options to best fit your environmental conditions and budget. MBRP Armor Plus Series exhaust systems feature corrosion-resistant T409 stainless steel construction and reliability backed for a lifetime. A performance exhaust system with a Lifetime Warranty, if you don't find yourself faced with lots of precipitation and salt, then the Armor Plus Series is all you're ever going to need. All the tubing is mandrel bent for maximum exhaust flow, ensuring no rippling in the bends, and resulting in more fresh air inside your engine's cylinders to produce more power and improve vehicle performance and longevity. MBRP Armor Plus Series systems are available in cat-back, resonator-back, DPF-back, and axle-back configurations in 2.5 to 5 in. tubing sizes depending on your vehicle. Many systems offer you the choice of rear, side, or turndown exits as well with an assortment of tips for the ultimate in style and vehicle customization. Please note: Winter conditions, heavy salt air, and road treatments might accelerate the corrosion process on T409 stainless steel. This is important to consider before making your purchase, as these conditions are not covered by MBRP's manufacturer warranty unless the part or system fails completely.

5.0 out of 5 stars ( 1 )

$749.99


$689.99

On Sale

Summit Racing™ Rollup Tonneau Covers

Summit Racing™ Rollup Tonneau covers are the most economical way to cover your truck bed. They allow you full truck bed and cargo coverage when you need it and roll back to provide open bed space when hauling larger loads. These tonneau covers are made with heavy-duty, tear-resistant vinyl and come complete. Just assemble the frame and clamp it down, no special tools required. Choose the model that fits your Truck.

5.0 out of 5 stars ( 14 )

$189.99


$170.99

On Sale

MBRP XP Series Exhaust Systems

MBRP XP Series exhaust systems are designed to withstand the toughest conditions, on and off the road. Their rugged, thick, 16-gauge stainless steel tubing won't rust through. They feature solid, reinforced welds at vital stress points, making certain that your system stays securely mounted. The MBRP XP Series mufflers and pipes deliver a rich, mellow exhaust note and are finished off with a mirror-polished, stainless steel, rolled-edge exhaust tip. They're available in a wide variety of styles and configurations to fit your specific vehicle.

4.42 out of 5 stars ( 242 )

$699.99


$669.99

On Sale

TruXedo TruXport Tonneau Covers

The perfect all-weather tonneau cover, the TruXedo TruXport tonneau cover features a Velcro® attachment system—no snaps or zippers to freeze up in the cold! No matter what the season, you'll benefit from the great features every TruXport tonneau cover has to offer. Features include: * Soft, roll-up design with Velcro® fastening system * All bows roll up with the cover for quick access to your truck bed * Straight bows and crossmembers provide a sleek look * Latching mechanism underneath the tarp for extra security * Heavy-duty vinyl cover material * No cutting or drilling required * 5-year warranty

4.76 out of 5 stars ( 365 )

$349.99

$379.99


$309.99

$339.99

On Sale

K&N Universal Performance Air Filters

K&N's universal performance air filters are designed and manufactured for a wide variety of applications, including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and more. Many hundreds of models are are available, so regardless of the angle or offset diameter of your air intake, there is likely a K&N universal air filter for your equipment. All filters are constructed with ultra-strong, molded, pliable rubber flanges, which absorb vibration, allow for secure attachment, and can be stretched for up to 1/16 in. (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable. Order the style and size that best suits your needs.

4.79 out of 5 stars ( 312 )

$78.99

$94.99


$63.19

$75.99

On Sale

Pacer Performance Flexy Flares Fender Flares

Pacer Performance Flexy Flares fender flares offer extra protection against the mud, dirt, gravel, and road debris that would otherwise be thrown into your fenders and doors. Flexy Flares are manufactured from heavy-duty EPDM synthetic rubber that is steel-reinforced. These durable bolt-on flares won't crack or peel in cold weather. They're available in numerous sizes for both universal and custom-fit applications.

4.44 out of 5 stars ( 50 )

$72.99

$469.99


$65.69

$422.99

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