2003 Toyota 4Runner Performance Parts

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    • (2 reviews)
      # mpn1098570
      Toyota 4Runner 4.0L / 4.7L 2003, MagnaFlow Series™ Stainless Steel Cat-Back Exhaust System with Dual Side Exit by MagnaFlow®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.5". Exhaust System...
      $686.15
    • (0 reviews)
      # 777637986
      Toyota 4Runner Limited / Sport / SR5 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...
      $270.79 - $638.90
    • (0 reviews)
      # 860867362
      Toyota 4Runner 2003, Front and Rear Suspension Lift Kit with 0"-3.5" Front and Rear Lift Height by ICON Vehicle Dynamics®. Max Tire Size: 33". IVD suspension systems are designed with maximum performance and the serious driver in mind....
      $1,754.80 - $6,069.40
    • (0 reviews)
      # 377242175
      Toyota 4Runner 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...
      $408.99 - $441.99
    • (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)
      # 315995778
      Toyota 4Runner 4.0L / 4.7L 2003, Insight CTS2 Monitor by Edge®. Observe and understand your vehicle’s parameters using Edge’s state-of-the-art technology. Edge Insight CTS2 delivers unmatched monitoring capability for any OBD II...
      This unit is a monitor only and does NOT offer software reprogramming to enhance engine performanceFull width 5" color monitor serves as display and features touch-screen controls
      $429.95
    • (0 reviews)
      # 780275638
      Toyota 4Runner 4.0L 2003, A-Series™ Connecting Rod Bearing Set by Clevite®. 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...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $16.60 - $66.68
    • (0 reviews)
      # 82859582
      Toyota 4Runner 4.7L With Left Hand Drive 2003, Radiator and Heater Hose Kit by HPS® Silicone Hoses. Since your OEM radiator or heater hose can leak at any time and occasionally burst, you need to have a reliable replacement at hand to...
      Direct fit for your vehiclePerfect for daily driving and racing applications
      $190.00
    • (2 reviews)
      # 606070471
      Toyota 4Runner 4.0L / 4.7L 2003, High Performance Transmission Oil Cooler Kit by Hayden®. Featuring a lightweight aluminum construction, this high performance transmission oil cooler is designed to provide outstanding cooling, as well...
      SAE 45 degree fittings for maximum reliabilityElectrostatically powder coated to prevent corrosion
      $38.22 - $47.82
    • (0 reviews)
      # 745708879
      Toyota 4Runner 2003, ID1700x Fuel Injector by Injector Dynamics®. The ID1700 is the most recent offering from the partnership of Injector Dynamics and Bosch Motorsport. The ID1700 was designed to fill the gap between the ID1300 and the...
      High quality at an affordable priceExpertly made from premium materials
      $250.00 - $1,500.00
    • (0 reviews)
      # 959892801
      Toyota 4Runner 2003, Iridium Spark Plugs by Autolite®. With Resistor. 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...
      Iridium-enhanced center electrodePatented, platinum sidewire technology
      $6.48 - $6.66
    • (1 review)
      # 1090211116
      Vega Gear Box by Helix®. If you are looking to upgrade the steering system of your vehicle to make the most out of your vehicle’s performance, go with this high-grade steering part that is engineered to be second to none when it comes...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $227.99 - $731.45
    • (0 reviews)
      # 458733827
      Toyota 4Runner 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,...
      Superior DesignEasy Installation
      $274.02
    • (0 reviews)
      # 503353044
      Toyota 4Runner 4.0L with Toyota 8" Series Axle 2003, Rear Zip Locker by Yukon Gear & Axle®. The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup...
      Air operated locker provides on-demand tractionForged case & 8620 internals for added strength
      $898.72
    • (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
    • (0 reviews)
      # 389093751
      Toyota 4Runner 2003, Heavy Metal Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Emissions: EPA compliant. Color: Silver. Header Coating: Uncoated. If your car needs replacement, install one that will...
      $448.58 - $501.83
    • (0 reviews)
      # 48046201
      Toyota 4Runner Limited / Sport / SR5 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...
      $258.50 - $377.95
    • (5 reviews)
      # 542383530
      Toyota 4Runner Limited / Sport / SR5 Rear Coil Spring without Adjustable X-REAS Suspension 2003, B8 5100 Series Front Driver or Passenger Side Monotube Snap Ring Grooved Body Ride Height Adjustable Strut with 0"-2.5" Front Lift Height by...
      $119.25
    • (0 reviews)
      # 377242184
      Toyota 4Runner 4.7L 2003, Plastic Black Cold Air Intake System with Pro 5 Filter by Volant®. Cooler air is denser and packs in more oxygen for better combustion and more horsepower. This air intake system features an airbox that...
      Protective and insulating AirboxQuicker throttle response
      $275.90
    • (2 reviews)
      # 172945431
      Toyota 4Runner 2003, V-Force Plus Performance Module by JET®. The JET V-Force Plus features the same power tuning technology found in JET’s performance modules/programmers. The JET V-Force Plus is an inline tuning device that uses a...
      Improve horsepower and throttle responseOptimized ignition advance curves
      $274.46
    • (0 reviews)
      # 824582258
      Toyota 4Runner 2003, A-Series™ Crankshaft Main Bearing Set by Clevite®. 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...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $65.70 - $81.64
    • (0 reviews)
      # 23646343
      Toyota 4Runner 2003, Rapid-Cool™ Reversible Fan Kit by Hayden®. This product can be used for either primary or add-on cooling. The Hayden Rapid-Cool fan features a thin, aerodynamic profile and reversible push/pull blades. The fan...
      Reversible push/pull operationThin, aerodynamic profile for applications with limited space
      $61.57 - $98.32
    • (0 reviews)
      # 605949950
      Toyota 4Runner 4.0L / 4.7L 2003, Ultra-Cool™ Transmission Oil Cooler Kit by Hayden®. This product is an effective and economical way to keep your transmission at its optimum operating temperature. The high-efficiency turbulators in...
      Compatible with OEM cooler systemsUltrasonically soldered for reliability
      $25.70 - $28.82
    • (0 reviews)
      # 487864811
      Toyota 4Runner 4.0L 2003, ID1050x Fuel Injector by Injector Dynamics®. The ID1050x is the evolution of the ID1000, and the latest addition to the X-Series. It is the most recent offering from the partnership of Injector Dynamics and...
      Corrosion resistant internals make it compatible with all known fuels, capable of extended service life with corrosive fuelsCompact body allows fitment in 200+ applications, including current and future engines utilizing short body injectors
      $130.00 - $780.00
    • (4 reviews)
      # 803932438
      Toyota 4Runner 2003, PlasmaCore™ Inconel Electrode Pulse Nickel Spark Plugs by Pulstar®. With Resistor. Inconel-electrode Pulse Plug. Designed specifically for most popular vehicles, PlasmaCore™ Inconel Electrode Pulse Plug...
      Increased horsepowerBetter torque
      $14.95 - $119.60
    • (0 reviews)
      # mpn3990109742
      Vega Manual Steering Gear Box Kit by Helix®. This box offers new bearings and gears for smooth, comfortable steering. Provides a smooth, natural steering wheel return. If you are looking to upgrade the steering system of your vehicle to...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $514.84
    • (0 reviews)
      # 458734652
      Toyota 4Runner 2003, High Output Alternator 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,...
      Superior DesignEasy 5 Minute Installation
      $381.23
    • (0 reviews)
      # 503486505
      Toyota 4Runner Limited / Sport / SR5 MFI with 30 Shaft Spline 2003, Air Locker by ARB®. Air locker locking differentials allow you to tackle the toughest terrain. The world's premier traction aid, ARB air lockers keep you moving in all...
      Differential CaseFlange Cap Assembly
      $940.50
    • (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)
      # mpn4494135390
      Toyota 4Runner Sport Utility 4.0L 2003, Racing 3-1 304 SS Long Tube Exhaust Headers by Torxe™. Primary Tubing Diameter: 1.5". Collector Outlet Diameter: 2.5". Emissions: Racing Only. Color: Silver. Header Style: Long Tube. This product...
      High quality at an affordable priceExpertly made from premium materials
      $270.00




    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 Toyota 4Runner 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 Toyota 4Runner that has been waiting to be released!


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    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

    • Performance Brakes, Pads & Rotors
      August 10, 2018
      When Is It Time To Replace My Brake Lines?
      Hydraulic brake lines and hoses aren’t something most people think about when it comes to vehicle maintenance. That’s understandable, considering automakers...
      by Michael Grayen
    • Performance Brakes, Pads & Rotors
      August 09, 2018
      When Is It Time To Replace My Brake Calipers?
      Brake calipers, found only on disc brake systems, house pistons which use the force of hydraulic brake fluid to stop the vehicle. More specifically, those pistons...
      by Timothy Zahl
    • Suspension
      August 08, 2018
      When Is It Time To Replace My Vehicle's Springs?
      The springs on your vehicle are an integral part of its suspension system. Not only do springs keep all four corners suspended at a pre-determined, level ride height,...
      by Richard Reina
    • Starting & Charging
      August 03, 2018
      When Is It Time To Replace My Alternator?
      Bolted to an engine block and powered by a belt-driven pulley, an alternator is in motion whenever the engine is running. Essentially, a vehicle's battery is tasked...
      by Michael Grayen
    • Performance 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
    • Engines
      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
    • Engines
      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
    • Engines
      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

    2003 Toyota 4Runner Performance Parts Reviews

    Average rating:  5  5 - 3 reviews
    5 of 5
    Functional Replacement
    Parts came on time and in the condition advertised. Installation went as expected, and the new spark plugs are working great.
    Posted by Michael Mitchell (Clifton, CO) / February 16, 20182003 Hyundai Elantra
    Was this review helpful for you? Yes
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