2003 GMC Sierra Parts

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    • (0 reviews)
      # 11050971
      GMC Sierra with Delco Alternator 2003, Alternator by TYC®. With 6 Groove Serpentine Pulley. The alternator is one of the parts you want to function properly, otherwise all the comforts given by the electronic components won't be...
      OE quality at an affordable priceDirect replacement
      $78.83 - $87.92
    • (0 reviews)
      # 525650580
      GMC Sierra Regular Cab / Extended Cab 4.3L / 4.8L / 5.3L Automatic Transmission Standard Duty Version With Air Conditioning 2003, Problem Solver™ Front Coil Springs by MOOG®. Quantity: 2 per Pack. Upgrade your vehicle to MOOG coil...
      Direct fit, with no modificationsRestores and retains proper handling
      $88.19 - $106.09
    • (0 reviews)
      # 207541483
      GMC Sierra 2003, Preferred Plain Brake Kit by Centric®. Centric Axle Packs are engineered to restore original braking performance for street driven cars and light trucks. Each Centric Axle Pack contains pre-selected, application...
      Centric® brake systems offer significant improvements to braking performanceAxle Pack pre-selected components provide easy parts selection
      $100.42 - $296.26
    • (0 reviews)
      # 1190959403
      GMC Sierra 2003, Remanufactured Engine Long Block by Replace®. If your engine is worn out, don’t just get a rebuilt engine, get one that’s better than new. A Replace engine is reverse engineered to eliminate original factory...
      Designed to be better than newReverse engineered to ensure any factory defects are eliminated
      $2,018.33 - $6,521.88
    • (0 reviews)
      # 115253412
      GMC Sierra 2003, Replacement Exhaust Kit by Walker®. If you are looking for the ultimate in quality and value, then this superior replacement exhaust kit by Walker is what you need. All its components are designed with precision...
      Mufflers and Resonators Designed for OE equivalent sound and precision fitOE-style louvered tube technology for a premium, factory-like sound
      $29.57 - $603.96
    • (0 reviews)
      # 1181966025
      GMC Sierra 2003, Engine Coolant Radiator by APDI®. Row quantity: 1. Construction: Plastic Tank Aluminum. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling...
      Same quality as OE for less moneyDesigned with the latest software and manufactured with modern tooling
      $80.47 - $278.46
    • (1 review)
      # 250875759
      GMC Sierra 2003, Fuel Pump Module Assembly by Spectra Premium®. A defective fuel pump can cause a no-start condition or poor engine performance. If replacement is required, your best choice is Spectra Premium. This assembly includes the...
      Meets or exceeds OE specificationsExact fit for easy installation
      $65.49 - $209.09
    • (1 review)
      # 1114884814
      GMC Sierra 2003, Professional™ Remanufactured Power Steering Gear Box by ACDelco®. 1 per Pack. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $130.98 - $193.60
    • (2 reviews)
      # 350370326
      GMC Sierra 2003, Remanufactured Rear Drive Axle Assembly by A1 Cardone®. Drive Axle Assemblies are remanufactured using the most stringent quality processes to deliver smooth, consistent performance in any driving condition. Each unit...
      All bearing pre-loads, axle housings, and shafts are inspected using precision measuring equipmentEvery unit is tested for drivability by checking the locking mechanism, if applicable, and verifying that there is no gear or bearing noise
      $906.67 - $1,743.25
    • (0 reviews)
      # 190753965
      GMC Sierra Denali 2003, OE Solutions™ Door Lock Actuator Motor by Dorman®. Activation Type: Electric. Connector Type: Application Specific Terminals. Packaging Type: Box. Voltage: 12V. Restore the ease and convenience of remotely...
      Direct replacement for a proper fit every timeHigh quality electric motor
      $34.95 - $177.95
    • (0 reviews)
      # 1186587940
      GMC Sierra with Automatic Climate Control / with Manual Climate Control 2003, GM Original Equipment™ A/C Compressor by ACDelco®. Silver. Built for trouble-free ownership and 100% visual- and leak-tested, GM Original Equipment...
      100 percent visual- and leak-tested to ensure component’s quality and durabilityProfessional, premium aftermarket replacement
      $253.00 - $259.87
    • (0 reviews)
      # 81097971
      GMC Sierra 2003, OEM Clutch Kit by EXEDY®. Replace your failing OEM clutch with a new, OEM-quality EXEDY clutch assembly. EXEDY is a Tier 1 Supplier to Ford and GM, as well as 11 Japanese car manufacturers.
      Manufactured on same production line as original equipment clutch componentsMeets or exceeds OEM standards
      $263.25 - $961.89
    • (0 reviews)
      # 1199618597
      GMC Sierra with Distributorless Ignition 2003, Ignition Coil by Spectra Premium®. Spectra Premium ignition coils are designed and produced under a strict TS16949 quality control process. In our online store you can get this superior...
      All ignition coils are durability tested at 100 cycles of thermal shock (-50 to 300° F), to ensure reliability from extreme vibration24 hours salt spray test ensures sensors provide high corrosion resistance
      $15.98 - $18.34
    • (0 reviews)
      # 73591082
      GMC Sierra 2003, GM Original Equipment™ Oxygen Sensor by ACDelco®. If your O2 sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s GM OE Oxygen Sensor...
      ACDelco GM OE Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditionsDetects oxygen content in the exhaust gases
      $34.84 - $57.33
    • (0 reviews)
      # mpn914852892
      GMC Sierra 4.3L 2003, GM Original Equipment™ Intake Manifold Assembly by ACDelco®. Position: Upper. Designed utilizing the latest technology, this GM Original Equipment™ Intake Manifold Assembly by ACDelco features premium quality...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $72.29
    • (0 reviews)
      # mpn469957354
      GMC Sierra 2500 HD Duramax Engine LB7 Engine 1 Engine VIN Character 2003, Fluid Analysis Kit by Merchant Automotive®. Improve Reliability and PerformanceTwo critically important criteria for owners are reliability and performance....
      High quality at an affordable priceExpertly made from premium materials
      $24.24
    • (0 reviews)
      # mpn2106715652
      Pocket iQ™ Diagnostic Tool by NEXIQ®. Whether you’re covering a large fleet or monitoring just a truck or two, this smart and handy tool makes it easy to collect critical truck performance data. With the Pocket iQ™ your toolkit,...
      Monitors all vehicle dataChecks engine speed/load, pressures, temperatures, and other data
      $989.38
    • (0 reviews)
      # mpn1142094342
      GMC Sierra Denali 2003, General Motors S10/S15/Sonoma/Syclone Pick-Ups Repair Manual by Chilton®. Chilton Total Car Care series offers do-it-yourselfers of all levels TOTAL maintenance, service and repair information in an easy-to-use...
      Repair manuals from Chilton are written by expert personnelUsing only a basic set of tools in an easy to follow style
      $14.07
    • (2 reviews)
      # mpn1728321
      Showroom Shine by Dr. Beasley's®. For a jaw-dropping effect on the road or on the sidewalk, go with this complete kit by Dr. Beasley's that includes everything needed for cleaning, preparing, and protecting your whole car from the...
      Makes your car look like it just left the showroom floorCombination of interior and exterior prescriptions
      $499.99
    • (1 review)
      # 743288445
      GMC Sierra Denali 2003, RedTop™ Battery by Optima®. Amp Hour Capacity: 50. Battery Type: AGM. Battery Usage: Starting. Cold Cranking Amperage: 800. MCA: 1000. Polarity: Straight. Reserve Capacity: 100. Resistance: 0.003 Ohms. Voltage:...
      Proudly Made in the USASealed absorbed glass mat (AGM) design that incorporates special glass fiber mats that contain the acid electrolyte between the lead plates, rather than a standard flooded (liquid) design
      $237.99 - $242.99
    • (1 review)
      # 1206461531
      GMC Sierra 2003, Professional™ Driver or Passenger Side Non-Adjustable Shock Absorber by ACDelco®. Quantity: 1 per Pack. ACDelco Professional Premium Gas-Charged Shocks offer the superior ride of a Premium Gas-Charged Shock with...
      RoadResponse™ Technology helps respond to changing road conditions with motion-sensitive valvingRoadResponse™ Technology provides a more comfortable ride during normal driving conditions
      $29.54 - $40.24
    • (1 review)
      # 20069762
      GMC Sierra 2003, C-Tek™ Standard Vented Brake Rotor by Centric®. Quantity: 1 Per Pack. Manufactured using quality G11H18 metallurgy and designed with a non-directional finish, this rotor provides superior braking power, high...
      OE style replacement rotorNon-directional finish
      $22.94 - $38.82
    • (0 reviews)
      # 1190959421
      GMC Sierra 2003, Remanufactured Long Block Engine by Dahmer Powertrain®. Designed utilizing the latest technology, this product by Dahmer Powertrain features premium quality and will perform better than advertised. Perfect for your...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $1,850.69 - $3,776.65
    • (0 reviews)
      # 898814522
      GMC Sierra 2003, Catalytic Converter by Davico®. Converter Configuration: Direct Fit. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat...
      $80.16 - $517.25
    • (0 reviews)
      # 1167976678
      GMC Sierra 2003, Replacement Water Pump by GMB®. GMB proudly announces that all principal component parts are designed, manufactured and tested in house, such as bearings, impellers, mechanical seal kits and housings. Integration of...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $26.19 - $63.11
    • (0 reviews)
      # 35572503
      GMC Sierra 2003, Fuel Injection Throttle Body by A1 Cardone®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...
      100% computerized testing of motor, throttle position sensor and articulation ensures reliable and consistent performanceEach unit is disassembled and meticulously inspected. Every component is inspected, remanufactured or replaced ensuring a durable, high-quality product
      $78.14 - $81.95
    • (2 reviews)
      # 98953993
      GMC Sierra 2003, Front Steering Idler Arm by Mevotech®. Quantity: 1 per Pack. If you need to restore your vehicle to its original steering efficiency, go with Mevotech steering parts to keep on the safe side. Get connected to the road...
      OE-quality replacement to stabilize your vehicleWill help restore accurate steering and quick response
      $11.62 - $51.30
    • (1 review)
      # 20470785
      GMC Sierra 2003, Front Wheel Bearing and Hub Assembly by Timken®. Bring back the factory-like condition of your vehicle with Timken Wheel Hubs. Constructed from premium materials, these wheel hubs guarantee accurate fit and durability.
      Designed to effectively reduce frictionUltimate load handling capability
      $100.41 - $159.56
    • (0 reviews)
      # 190769318
      GMC Sierra 2003, OE Solutions™ Door Lock Actuator Motor by Dorman®. Activation Type: Electric. Connector Type: Application Specific Terminals. Packaging Type: Box. Voltage: 12V. Restore the ease and convenience of remotely locking or...
      Direct replacement for a proper fit every timeHigh quality electric motor
      $34.95 - $177.95
    • (0 reviews)
      # mpn3232
      GMC Sierra Denali without Ambulance Package 2003, A/C Condenser by TYC®. When your condenser is leaking, restricted, or otherwise damaged, you know you need to get a new one right away. The good news is you don't have to pay the high...
      All TYC condensers are vehicle tested to ensure drop-in fit ease of installation and trouble-free function during the testing phasePremium grade aluminum tubes, brackets, curved hoses and fittings are designed to OE specifications
      $38.62




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    To make sure your vehicle stays in top shape, check its parts for wear and damage at regular intervals and replace them in time. When you are in need of a reliable replacement part for your 2003 GMC Sierra to restore it to 'factory like' performance, turn to CARiD's vast selection of premium quality products that includes everything you may need for routine maintenance and major repairs. All 2003 GMC Sierra repair parts on offer are designed to provide high quality, performance, and long-lasting service life at an economical price.

    Guides & Articles

    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
      July 06, 2018
      When Is It Time To Replace My Engine Timing Belt?
      A timing belt is a toothed belt made of reinforced rubber that rides on sprocket wheels. Driven by the engine's crankshaft pulley, a timing belt provides rotational...
      by Michael Grayen
    • Replacement Suspension Parts
      July 05, 2018
      When Is It Time To Replace My Shock Absorbers?
      Shock absorbers are suspension components that dampen and halt the up-and-down movement of your vehicle's springs. If these control devices weren't part of the...
      by Timothy Zahl
    • Ignition Parts
      July 04, 2018
      When Is It Time To Replace My Spark Plugs?
      Spark plugs are a key ingredient of gasoline engines when it comes to serving up a dish of solid power. More specifically, they conduct electricity derived from the...
      by Richard Reina
    • A/C and Heating Parts
      June 25, 2018
      When Is It Time To Replace My Cabin Air Filter?
      If you own a car or truck built since the early 1990s, the HVAC (heating, venting & air conditioning) system which provides heated and cooled air to the vehicle’s...
      by Michael Grayen
    • Oils, Fluids, Lubricants
      June 23, 2018
      When Is It Time To Replace My Car’s Brake Fluid?
      When it comes automotive maintenance items, changing a vehicle's brake fluid is probably not at the top of anyone's mind. But it should be, because there are important...
      by Timothy Zahl
    • Performance Engine Cooling
      June 13, 2018
      When Is It Time To Replace My Coolant Hoses?
      Carmakers do not consider coolant hoses a routine maintenance item, so it follows that there can be a lack of guidance about how often these hoses should be replaced....
      by Timothy Zahl
    • Engine Parts
      June 11, 2018
      When Is it Time To Replace My Engine Thermostat?
      When you consider that temperatures within an engine's combustion chambers reach over 2,000 degrees Fahrenheit, it's a marvel to consider how effective engine cooling...
      by Michael Grayen
    • 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

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    2003 GMC Sierra Parts Reviews

    Average rating:  5  5 - 3 reviews
    5 of 5
    Lb7 High Idle
    Works great easy to install, simple, should have been a factory piece.
    TPosted by Todd Woyak (Stevens Point, WI) / January 4, 20172003 Chevy Silverado
    Was this review helpful for you? Yes
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