2003 GMC Sierra Performance Parts

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    • (0 reviews)
      # 48222560
      Club X-1 Full Face ATM (Advance Thermo Material) Racing Helmet by Sparco®. Certification: ECE 05; Material: ATM (Advance Thermo Material) Designed for indoor kart racing where a fire proof helmet isn't required, this product is...
      Designed for indoor kart racingProvides ultimate protection
      $140.00
    • (1 review)
      # mpn469955993
      GMC Sierra 1500 RWD 2003, Lift Spindles with 3" Lift Height by MaxTrac Suspension®. Quantity: 2 per Pack. Maxtrac Suspension's lifted spindles are a simple, but extremely effective way of gaining additional clearance in the front of...
      Maintains your OEM ride quality while achieving maximum liftUtilizes extended steering knuckles
      $348.60
    • (0 reviews)
      # 503510299
      GMC Sierra 4WD with 35 Spline with Dana 60 Series Axle with 4.10 and Down Gear Ratio with Quadrasteer Axle 2003, Rear Zip Locker by Yukon Gear & Axle®. Location: Rear. The Yukon Zip Locker is the latest in on-demand traction. Its...
      Air operated locker provides on-demand tractionForged case & 8620 internals for added strength
      $1,025.92 - $1,188.94
    • (0 reviews)
      # 458734721
      GMC Sierra 2003, Gear Reduction Starter by Mean Green®. Designed utilizing the latest technology, this product by Mean Green features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Superior DesignEasy Installation
      $274.02 - $381.23
    • (0 reviews)
      # 454066898
      GMC Sierra 6.6L 2003, Big Hoss™ Turbocharger Intercooler System by Banks®. The ultimate engineered power system for sport and racing applications, Big Hoss Bundle has a full gamut of Banks intake, turbo, exhaust, fuel tuning &...
      Optimizes airflow, air density, continuous power & MPGHonors the host vehicle & improves longevity
      $3,479.93 - $3,643.70
    • (0 reviews)
      # 1187591875
      GMC Sierra 2003, Stage 1 Front and Rear Complete Lift Kit with 6" Front and 4" Rear Lift Height by Pro Comp®. Max Tire Size: 35"x12.50"R17-20. Driven by genuine off-road enthusiasts, Pro Comp suspension products reflect customer driven,...
      $1,695.99 - $2,188.99
    • (0 reviews)
      # 1201230605
      GMC Sierra Standard Transmission 2003, Stage 1 Clutch Kit by South Bend Clutch®. Heavy Duty. Does not Include: Flywheel. Disc Material: Organic. Clutch Engagement: Smooth Engagement. Heavy duty version of the stock O. E. clutch. The...
      Engineered to enhance your vehicle's performanceMade to stringent quality standards
      $507.37 - $1,633.97
    • (0 reviews)
      # 188131154
      GMC Sierra 2003, 1-Click Z23 Evolution Sport Drilled and Slotted Brake Kit with Calipers by Power Stop®. Get superior benefits of ceramic pads and cross-drilled rotors in the Power Stop 1-Click Brake kit. These components are used in...
      $285.48 - $755.11
    • (1 review)
      # 377201729
      GMC Sierra 2003, 77 Series High-Flow Performance Aluminum Polished Cold Air Intake System by K&N®. The K&N high-flow performance air intake system is a free-flowing, mandrel-bent aluminum tube air induction system. The restrictive...
      Guaranteed to increase horsepowerDesigned to improve throttle response and engine sound
      $339.99 - $410.99
    • (0 reviews)
      # mpn1523561817
      GMC Sierra 1500 6.0L 2003, Direct Fit Radiator with Fan by Flex-a-Lite®. Size: 38" x 18 1/2" x 7". Inlet Location: Upper Driver Side. Outlet Location: Lower Passenger Side. Fan Quantity: Dual. Fan Diameter: Dual 15". Number of Blades:...
      Makes for efficient heat transferPatented Flex-a-fit sidetank design
      $1,305.07
    • (0 reviews)
      # mpn735579397
      GMC Sierra 6.6L 2003, BladeRunner Street Series Turbocharger by aFe®. Install the BladeRunner in place of your stock turbocharger! It's a direct replacement so installation is hassle-free – no modifications to your truck are required....
      Direct Bolt OnReduces EGTs 150+ Deg.
      $997.50
    • (0 reviews)
      # 1119817203
      GMC Sierra 2003, Mach Force XP™ 409 SS Cat-Back Exhaust System with Single Side Exit by aFe®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 409 SS. Exhaust System Sound: Aggressive / Loud. Get increased exhaust flow, more...
      $527.25 - $598.50
    • (1 review)
      # mpn1598137
      GMC Sierra 4.8L / 5.3L / 6.0L 2003, Powr-Flo™ Throttle Body by JET®. The JET Powr-Flo Throttle Body is a direct replacement for the factory unit. It can be used to replace a worn out throttle body or to upgrade the existing throttle...
      Modified air inlet to improve air flow and Throttle responseUnique Design increases air velocity to the intake manifold
      $369.71
    • (1 review)
      # 819649049
      GMC Sierra 2003 Extreme 9000™ Spark Plug Wire Set by Accel®. Accel Extreme 9000 Ceramic Boot Wires feature ultra high-temperature, double silicone, 8mm, 500 ohms/ft. Ferro-Spiral core wire developed for performance use. The wire is...
      8 mm Ferro-Spiral Core WireCeramic Boots
      $113.95 - $125.95
    • (0 reviews)
      # 862044829
      GMC Sierra 2003, Trinity 2 Programmer by DiabloSport®. The all-new Trinity (T2) EX is the most advanced performance programmer of its kind. Featuring full re-flash/reprogram capability, advanced data acquisition, and customizable...
      Full-color, high-definition 5" touch screenPerformance tuning for mileage, towing, daily driving, and performance
      $599.95
    • (0 reviews)
      # 69025922
      110 Series Single Layer Racing Suit by RaceQuip®. Avaliable in Colors: Black, Blue, Red. Get superior durability and comfort combined with overall flame and heat protection. Strong construction and advanced sewing techniques make this...
      Ensures heat and fire protectionGentle fabric provides superior comfort
      $99.95 - $139.95
    • (0 reviews)
      # 264758107
      GMC Sierra 4WD 2003, 9000 Front Replacement Steering Stabilizer Cylinder by Skyjacker®. Quantity: 1 per Pack. Steering Stabilizer is a dampening shock for your steering system. It dampens out the harshness of the highway, the ‘shimmy'...
      Dampening shock for steering systemDampens harshness of highway
      $55.39
    • (1 review)
      # 1178535079
      GMC Sierra 2003, Rear Axle Shaft Kit by Yukon Gear & Axle®. Yukon Gear and Axle offers an extensive line of general replacement and high performance axles for passenger car, truck and SUV applications. High quality alloys and the latest...
      Enables you to keep your engine in the powerband for more giddy-up and high speedAllows for getting superior traction on just about any brutal terrain
      $178.72 - $459.07
    • (0 reviews)
      # mpn359109741
      Pro Series Alternator Kit by Powermaster®. With 8072 Alternator. Current: 100 Amp. Mounting: Snug Mount. Finish: Black powdercoated. Designed utilizing the latest technology, this product by Powermaster features premium quality and will...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $363.79
    • (0 reviews)
      # 450479564
      Universal PowerPack™ Turbocharger System by Banks®. The Banks Power Dual Exhaust PowerPack System is the complete towing package your pickup truck, with extended cab short bed configuration, deserves.
      Stunning Top GainsImproved Mileage
      $2,198.00 - $2,798.00
    • (0 reviews)
      # 1160758600
      GMC Sierra 2500 HD 2003, Stage 1 Front and Rear Complete Lift Kit with 6" Front and Rear Lift Height by Pro Comp®. Max Tire Size: 35x12.50R17-20, 315/70R17, 305/70R18, 325/65R18, 295/60R20. Driven by genuine off-road enthusiasts, Pro...
      $1,884.99 - $2,032.99
    • (2 reviews)
      # 693712306
      GMC Sierra 2003, Street and Strip Automatic Transmission Assembly by B&M®. It is a complete ready-to-run unit for high performance street and mild strip use. The transmission provides firm shifts and features a standard shift pattern.
      Rebuilt front pumpAll new B&M high performance friction plates
      $2,138.93 - $2,352.93
    • (0 reviews)
      # 48000806
      GMC Sierra 2003, Stage 5 Super Street Dimpled and Slotted Brake Kit by EBC®. The EBC Stage 5 SuperStreet Brake Kit is designed for those looking for heavy-duty high gripping pads and rotors. Thanks to the 4000 Series Yellowstuff Street...
      $330.01 - $537.57
    • (0 reviews)
      # 377202783
      GMC Sierra 2500 HD / 3500 6.6L 2003, Momentum™ HD Aluminum Black Cold Air Intake System by aFe®. Bringing you the next generation of intakes, the Momentum HD sealed air intake system is superior in every way. From the one-piece sealed...
      Improves airflow to your engineIsolates the air filter from engine heat, enabling it to take in cooler, denser air
      $417.05 - $426.55
    • (3 reviews)
      # 102119726
      GMC Sierra 2003, Thermocap™ Radiator Cap by Mr. Gasket®. OEM Replacement. With Thermometer Built In. 16 PSI. Keeping your engine cool is pretty important, so Mr. Gasket has a full line of cooling system accessories. Whether it’s a...
      Brilliant triple-chrome platingPrevent boilovers
      +1
      $32.43 - $37.53
    • (0 reviews)
      # mpn358595589
      GMC Sierra 2500 HD 8.1L Big Block Chevy 2003, Big M Engine Block by Dart®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and...
      Standard 9.800" and tall 10.200" deck heights available for stroker enginesStandard 4.250" , 4.500" or 4.600" bore sizes with siamesed extra thick cylinder walls to resist cracking and improve ring seal (minimum .300" thick with 4.625" bore)
      $2,383.97
    • (0 reviews)
      # 1119811149
      GMC Sierra 2003, Force II™ Aluminized Steel Single Cat-Back Exhaust System with Single Side Exit by Flowmaster®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Aluminized Steel. Main Tubing Diameter: 3". Exhaust System Sound: Mild /...
      $404.70 - $515.94
    • (0 reviews)
      # 538889420
      GMC Sierra 6.6L 2003, Fuel/Air Separation System by PureFlow AirDog®. Get exceptional engine performance and increased fuel economy with this system. It is designed to provide fuel at flows and pressures beyond the maximum requirements...
      Designed to improve fuel economy and enhance engine performanceRemoves vapor/air and contaminates from diesel fuel
      $599.00 - $624.00
    • (0 reviews)
      # 1199053979
      GMC Sierra 2003, Iridium Spark Plugs by Autolite®. These spark plugs are one of the brand's most technologically advanced spark plugs ever. With an iridium-enhanced 0.6 mm finewire design and proprietary platinum sidewire technology,...
      Iridium-enhanced center electrodePatented, platinum sidewire technology
      $6.48
    • (12 reviews)
      # 244475662
      GMC Sierra 2003, Evolution CTS2 Programmer by Edge®. Innovation and quality are part of Edge’s DNA. The Evolution CTS2 has no peer in the marketplace and is designed for “WOW”! As an in-cabin controller and programmer the...
      Offers performance-enhancing software revisions designed specifically for fuel economy, towing, semi-aggressive performance, and aggressive performanceSlim, Sleek Case Design
      $599.95 - $679.95




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    CARiD is the ultimate source for premium-quality performance parts. With our extensive collection of performance upgrades, adding onto your vehicle's performance or improving its look is safe and easy. Boost the interior of your 2003 GMC Sierra with a set of racing seats, raise or lower your vehicle for an aggressive look, or add a set of high-performance brake rotors for superior braking. Unlock the hidden potential of your 2003 GMC Sierra that has been waiting to be released!

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    Useful articles fast to read and guides easy to understand written by mechanics and car enthusiasts to turn your shopping experience with CARiD into a pleasure

    • Suspension Parts
      July 11, 2018
      When Is It Time To Replace My Suspension Bushings?
      Maybe you remember being pushed along in a wheelbarrow during childhood. The ride was bone-jarring - even with an air-filled rubber tire cushioning against the rough...
      by Timothy Zahl
    • Engine Parts
      May 21, 2018
      How To Remove An Engine
      If you've grown tired of your engine's declining performance, inconsistent power, rough idle, exhaust smoke, knocking noises, rattles, and other maladies that plague...
      by Richard Reina
    • Engine Parts
      May 09, 2018
      How Does An Internal Combustion Engine Work?
      An engine that uses liquid fuel to create energy, such as an internal combustion engine, is basically a large air pump. Cool air is drawn in, mixed with the fuel of...
      by Timothy Zahl
    • Engine Parts
      May 02, 2018
      Glossary Of Engine External Parts
      Internal combustion engines are extremely complex and feature a wide array of components that rotate, pump, pressurize, or seal. Many of these components, while...
      by Timothy Zahl
    • Performance Engine Parts
      April 20, 2018
      What You Need When Rebuilding Or Replacing An...
      So you’ve decided to take on the project of rebuilding or replacing your vehicle’s engine. Modern internal combustion engines are quite complex – with a wide...
      by Richard Reina
    • Shift Knobs
      January 19, 2018
      Shopping Guide – Shift Knobs
      The knob at the end of your gearshift lever probably isn't something that most people notice when getting into your car or truck. But for a minimal cost, it can be. We...
      by Timothy Zahl
    • Running Boards
      November 29, 2017
      Shopping Guide - Running Boards
      Running boards date as far back as the automobile itself, being integrated into car and truck designs until falling out of favor after World War II. With the boom in...
      by Timothy Zahl
    • Off-Road Bumpers
      November 28, 2017
      Shopping Guide – Off Road Bumpers | Custom...
      There's a saying that advises out of all the paths you take in life, it's important to make sure a few of them are dirt. But while dirt can be found most anywhere you...
      by Timothy Zahl
    • Automotive Tools
      August 30, 2017
      What Special Tools Are Available For Exhaust...
      Exhaust work can be challenging. Old parts are usually corroded and difficult to separate, and new ones sometimes need minor fitment adjustments during installation....
      by Timothy Zahl
    • Automotive Tools
      August 24, 2017
      What Special Tools Are Available For Fuel...
      Maintenance and repair work on fuel systems must be done with precision, no matter what part of it you're working on. Tools specifically designed for use on fuel...
      by Timothy Zahl
    • Automotive Tools
      July 12, 2017
      What Special Tools Are Available For Driveline...
      The expression "heat and beat" applies to a lot of driveline repairs, meaning worn parts are often so difficult to separate that one must use a blowtorch and great...
      by Michael Grayen
    • Batteries & Power
      May 22, 2017
      High-End Audio Demands Its Own Battery Source
      When you're driving and headlights start to dim because a high-powered stereo is cranking, that means the deep bass you hear is causing total vehicle electrical draw...
      by Timothy Zahl

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    2003 GMC Sierra Performance Parts Reviews

    Average rating:  4  4 - 3 reviews
    2.3 of 5
    Fits But
    Well, with force it finally fit on the tank. It was to be for a 2003 Saturn, but it did not go on easily like it should have. But it works anyway.
    VPosted by Valerie Domer (Calexico, CA) / July 27, 20172003 Saturn Vue
    Was this review helpful for you? Yes
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