2004 Subaru WRX Fuel System Parts

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    • (0 reviews)
      $51.58$41.26
      Subaru WRX STI 2004, Electric Fuel Pump by Pilot®. In-Tank. Original Equipment proved, patented in-house design technology, from a certified manufacture guarantee exacting fit, form & function with every unit. Superior components...
      Helps you to get the most out of your vehiclePrecision designed to perfectly fit your vehicle
      # 42410465
    • (0 reviews)
      $511.48$409.18
      Subaru WRX 2004, 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...
      Meets or exceeds OE specificationsExact fit for easy installation
      # 48068923
    • (0 reviews)
      $94.31from $75.45 - $103.05
      Subaru WRX 2004, Fuel Pump by Denso®. If your vehicle is hard to start, lacks power for overtaking, or stalls frequently, it might be time to check the fuel pump. And if it needs replacement, you can't do better than Denso. A...
      Turbine Technology - Delivers fuel with minimal pressure pulsation for quieter operationArmature - Ultra-high balanced to minimize noise and vibration
      # 21104196
    • (0 reviews)
      $20.99$16.79
      Subaru WRX 2.5L 2004, In-Line Fuel Filter by Hastings®. This filter is designed to protect fuel system components, such as injection pumps and injectors, from damaging contaminants, including water, bacteria, non-combustible...
      Meets or exceeds all filtration requirements of the applicationExtends fuel system component life
      # 21461216
    • (0 reviews)
      $17.45$13.96
      Subaru WRX 2.0L 2004, Spin-On Fuel Filter by MANN-Filter®. This filter forms a harmonious combination of housing and filter element that provides superior protection to the engine from any dirt, dust, and other contaminants. It...
      High cleaning efficiency for greater engine protectionEnsures high functional reliability of fuel injection components
      # 20562327
    • (0 reviews)
      $519.86$415.89
      Subaru WRX STI 2004, Fuel Pump Module Assembly by Airtex®. Strainer Inlet. Quick Connection 5/16" Outlet. 90-100 PSI. 50-60 GPH. Includes Fuel Pump, Sending Unit, Float, Fuel Strainer, Tank Seal. This assembly is manufactured with...
      Meets or exceeds OEM quality standardsModified return porting enhances performance and flow over OE design
      # 22520728
    • (0 reviews)
      $278.64$222.91
      Subaru WRX / WRX STI 2004, Electric Fuel Pump by Airtex®. This electric fuel pump is engineered by a recognized OEM supplier utilizing the latest advancements in fuel delivery technology. Advanced materials, improved brushes and...
      Meets or exceeds OEM quality standardsFactory-like fit, function, and dependability
      # 22542894
    • (0 reviews)
      $359.63$287.70
      Subaru WRX 2004, Fuel Pump and Sender Assembly by Airtex®. Strainer Inlet. Hose Bead 5/16" Outlet. 60-70 PSI. 50-60 GPH. Includes Fuel Pump, Sending Unit, Float, Fuel Strainer, Tank Seal. This assembly is manufactured with the...
      Meets or exceeds OEM quality standardsModified return porting enhances performance and flow over OE design
      # 52249578
    • (0 reviews)
      $30.34$24.27
      Subaru WRX 2004, Fuel Filter by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the...
      OE quality products from top original equipmentTop quality materials
      # 35813468
    • (0 reviews)
      $111.58from $89.26 - $91.82
      Subaru WRX 2004, Intermotor™ Fuel Injector by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      # 45264019
    • (0 reviews)
      $34.24$27.39
      Subaru WRX H4 2004, Remanufactured Multi Port Fuel Injector by GB Remanufacturing®. OE-quality or better performance at a reduced cost is what you'll get with this remanufactured multi-port fuel injector. This injector is an exact...
      Remanufactured OEM part, not similar or aftermarket substituteAffordable alternative to a new OEM injector
      # 22326845
    • (0 reviews)
      $50.86from $40.69 - $73.18
      Subaru WRX 2004, Fuel Injector by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the...
      OE quality products from top original equipmentTop quality materials
      # 36253735
    • (0 reviews)
      $82.53$66.02
      Subaru WRX 2004, Fuel Injector - New by Denso®. When a vehicle uses Denso First Time Fit fuel injectors, the engine runs smoother, improves gas mileage, and produces fewer emissions. Denso First Time Fit fuel injectors meet the...
      Maintains new-car smoothness and drivabilityFirst Time Fit™ saves valuable shop time
      # 36543626
    • (0 reviews)
      $91.44from $73.15 - $76.87
      Subaru WRX 2004, Intermotor™ Fuel Injection Pressure Regulator by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      # 45264034
    • (0 reviews)
      $19.14$15.31
      Subaru WRX / WRX STI 2004, Tru-Tech™ Fuel Pump Relay by Standard®, Use 1 per Car. Type Connection: Relay, Male, Female. No Continuous Duty. Includes: Relay. Without Mounting Bracket. 12 Volt. Round. Terminal Type: Blade. When you...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      # 23817859
    • (0 reviews)
      $34.56$27.65
      Subaru WRX / WRX STI 2004, Intermotor™ Fuel Injection Relay by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      # 45115647
    • (0 reviews)
      $85.19from $68.15 - $163.48
      Subaru WRX 2004, Intermotor™ Throttle Position Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      # 45264028
    • (0 reviews)
      $78.85$63.08
      Subaru WRX 2004, Throttle Position Sensor by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in...
      OE quality products from top original equipmentTop quality materials
      # 35814164
    • (0 reviews)
      $407.00from $325.60 - $335.36
      Subaru WRX 2004, Fuel Injection Manifold Pressure Sensor by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to...
      OE quality products from top original equipmentTop quality materials
      # 35861858
    • (0 reviews)
      $28.34$22.67
      Subaru WRX FI 2004, In-Line Gasoline Fuel Filter by FRAM®. 4.72" Long. 9.5mm Tube connector. 2.56" Outside diameter. Keep the fuel clean with an In-Line Gasoline Fuel Filter by FRAM. This unit is designed specially for protecting...
      Helps maintain peak engine performanceTraps harmful contaminants
      # 40170847
    • (0 reviews)
      $22.88$18.30
      Subaru WRX 2004, Fuel Pump Strainer by Denso®, 1 Piece. If your vehicle is hard to start, lacks power for overtaking, or stalls frequently, it might be time to check the fuel pump. And if it needs replacement, you can't do better...
      Turbine Technology - Delivers fuel with minimal pressure pulsation for quieter operationArmature - Ultra-high balanced to minimize noise and vibration
      # 21071300
    • (0 reviews)
      $7.23$5.78
      Subaru WRX STI 2004, Fuel Injector O-Ring Kit by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import...
      OE quality products from top original equipmentTop quality materials
      # 36226785
    • (0 reviews)
      $377.20$301.76
      Subaru WRX 2004, Fuel Pump Hanger Assembly by Bosch®. If you are in need of a replacement fuel pump hanger assembly, install a Bosch OE-quality fuel pump hanger assembly with complete confidence. It's built to OEM specs to ensure a...
      Direct replacementInstalls the same way as the factory unit
      # 50482857
    • (0 reviews)
      $19.39$15.51
      Subaru WRX STI 2004, Fuel Pump Tank Seal by Bosch®. If you're in search of a small yet essential fuel delivery part like a fuel pump tank seal, choose Bosch. Each seal is manufactured from premium materials and ensures long-lasting...
      Direct replacementInstalls the same way as the factory unit
      # 50482856
    • (0 reviews)
      $16.76$13.41
      Subaru WRX / WRX STI 2004, Fuel Pump Strainer by Spectra Premium®. Left unprotected, dirt and debris could quickly destroy an electric fuel pump. The fuel pump strainer is the pump’s first line of defense, preventing dirt,...
      Designed to protect the fuel pump and prevent fuel system contaminationEngineered to stringent tolerances
      # 48068925
    • (0 reviews)
      $20.63$16.50
      Subaru WRX / WRX STI 2004, Fuel Pump Strainer by Airtex®. Push Fit Inlet. This electric fuel pump is engineered by a recognized OEM supplier utilizing the latest advancements in fuel delivery technology. Advanced materials,...
      Meets or exceeds OEM quality standardsFactory-like fit, function, and dependability
      # 22650168
    • (0 reviews)
      $7.13$5.70
      Subaru WRX 2004, Replacement Fuel Tank Non-Locking Cap by Gates®. Rugged, heavy-duty construction. Meet or exceed OEM specifications. Caps fit both shallow and deep cam filler necks - vented, non-vented and vented anti-surge. Three...
      # 48514740
    • (0 reviews)
      $16.24$12.99
      Subaru WRX 2004, Fuel Cap Tester Adapter by Stant®. Threaded Adapter Connected to Tester. Test fuel tank caps quickly and accurately with Stant Fuel Cap Tester adapters. They’ve been developed to enable fuel caps to be tested for...
      Stant’s fuel cap tester adapters make it quick and easy to accurately test fuel caps for leaksFuel cap tester adapters have been developed to test fuel caps for compliance with current EPA regulations
      # 42367695
    • (0 reviews)
      $17.64$14.11
      Subaru WRX 2004, InStant Fill™ Fuel Cap by Stant®. 2-15/16" Pressure Vacuum (1-9/16" x 2-1/32" Threaded). A defective fuel cap can cause your vehicle to fail an emissions test, and allow up to 22 gallons of gasoline to evaporate...
      OE Pressure relief prevents fuel vapors from exiting the fuel system under normal operating conditionsOE Vacuum relief prevents fuel vapors from exiting the fuel system via the fill tube under normal operations
      # 42367696
    • (0 reviews)
      $7.08$5.66
      Subaru WRX 2004, OE Equivalent Fuel Cap by Stant®. Packaged in a Box. A defective fuel cap can cause your vehicle to fail an emissions test, and allow up to 22 gallons of gasoline to evaporate in one year, wasting your money and...
      OE Pressure relief prevents fuel vapors from exiting the fuel system under normal operating conditionsOE Vacuum relief prevents fuel vapors from exiting the fuel system via the fill tube under normal operations
      # 42367697
    • (0 reviews)
      $15.39$12.31
      Subaru WRX 2004, Regular Locking Fuel Cap by Stant®. Packaged in a Box. These locking caps are specially designed to protect your vehicle from vandalism and fuel theft. They’re made from sturdy, long-life materials and they’re...
      Keyed alike versions are available for small fleets or consumers with more than one vehicleOE Pressure relief prevents fuel vapors from exiting the fuel system under normal operating conditions
      # 42367702
    • (0 reviews)
      $7.15$5.72
      Subaru WRX STI 2004, Fuel Injection Throttle Body Mounting Gasket by Victor Reinz®, Use 1 per Car. OEM Standard. Material: Paper. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the...
      # 24045065
    • (0 reviews)
      $46.05$36.84
      Subaru WRX / WRX STI 2004, Intermotor™ Fuel Injection Pressure Damper by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive...
      OE quality parts from top original equipment and aftermarket manufacturersFast shipping; 1-2 day delivery time regardless of where you’re located
      # 45115636
    • (0 reviews)
      $7.75$6.20
      Subaru WRX 2004, Fuel Injection Throttle Body Mounting Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      # 40720488
    • (0 reviews)
      $8.05$6.44
      Subaru WRX 2004, Fuel Injection Throttle Body Mounting Gasket by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning...
      OE quality products from top original equipmentTop quality materials
      # 36227020
    • (0 reviews)
      $6.65$5.32
      Subaru WRX STI 2458 3.92 3.11 H4 2004, Fuel Injector Seal Kit by GB Remanufacturing®. GB Remanufacturing is your one-stop shop for injector seal kits containing quality components that will help you do a repair job quickly and...
      Reliable and long-lasting sealing solutionMeets or exceeds OE quality
      # 22317923
    • (0 reviews)
      $19.08$15.26
      Subaru WRX 2004, Fuel Cap System Tester Adapter by Gates®. Threaded. Connected to Tester. Economical, easy-to-use alternative to electronic testers.
      # 48514735
    • (0 reviews)
      $15.59$12.47
      Subaru WRX 2004, Locking Fuel Tank Cap by Gates®. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste your time and gas only to find...
      # 48514739
    • (0 reviews)
      $26.63$21.30
      Subaru WRX 2.0L 2004, Fuel Filter by Mahle®. Note: In Line. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before...
      # 8542281
    • (0 reviews)
      $6.10$4.88
      Subaru WRX STI 2004, Throttle Body Gasket by Nippon Reinz®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before...
      # 8715729
    • (0 reviews)
      $56.26$45.01
      Subaru WRX 2004, Fuel Filter by NPN®. In Line. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before you waste your...
      # 8725113
    • (0 reviews)
      $166.43$133.14
      Subaru WRX 2004, Throttle Position Sensor by Genuine®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before you...
      # 8827500
    • (0 reviews)
      $22.04from $17.63 - $18.06
      Subaru WRX 2004, Fuel Injector O-Ring by Genuine®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before you waste...
      # 8879462
    • (0 reviews)
      $166.44from $133.15 - $133.48
      Subaru WRX 2004, Fuel Pressure Regulator by Genuine®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before you...
      # 8916050
    • (0 reviews)
      $7.08$5.66
      Subaru WRX 2004, Fuel Injector Seal by Genuine®. Position: Lower. Note: Fuel Injector to Manifold. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your...
      # 8919232
    • (0 reviews)
      $168.56$134.85
      Subaru WRX 2004, Fuel Injector by Original Equipment®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before you...
      # 43167492
    • (0 reviews)
      $92.04$73.63
      Subaru WRX 2004, Lambda Temp. Sensor by Genuine®. Position: Front. Note: Exhaust Temperature Sensor, Located in Turbo inlet pipe. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more...
      # 44711902
    • (0 reviews)
      $127.45$101.96
      Subaru WRX STI 2004, Fuel Filter by Genuine®. Located on top of Fuel Pump. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need...
      # 44711905
    • (0 reviews)
      $13.41$10.73
      Subaru WRX 2004, Idle Control Valve Gasket by Genuine®. Note: Molded Gasket. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need...
      # 44711908
    • (0 reviews)
      $9.36$7.49
      Subaru WRX 2004, Idle Control Valve Gasket by Ishino®. Note: Molded Gasket. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need...
      # 50478092
    • (0 reviews)
      $13.48from $10.78 - $17.56
      Subaru WRX 2004, Multi-Rib Belt Drive Belt by Bando®.
      # 7905556
    • (0 reviews)
      $16.76$13.41
      Subaru WRX 2004, Multi-Rib Belt Drive Belt by Mitsuboshi®. Position: Air Conditioning. Do you hear chirping or squealing noise? Has the “power” disappeared from your steering? Does your engine crank slowly and are your lights...
      # 7956163
    • (0 reviews)
      $114.26$91.41
      Subaru WRX 2004, Timing Belt by Mitsuboshi®. Do you hear chirping or squealing noise? Has the “power” disappeared from your steering? Does your engine crank slowly and are your lights dim? You may need accessory drive belt...
      # 7957770
    • (0 reviews)
      $8.30from $6.64 - $10.90
      Copper Anti-Seize Lubricant by Loctite®. This reliable copper anti-seize and thread lubricant prevents seizing, corrosion, and galling on parts exposed to high temperature environments to 1800°F. After using this product, you'll...
      Protects metal parts under extreme conditions of heatTemperature range from -30°F to +1800°F
      # 24683318
    • (0 reviews)
      $5.33from $4.26 - $15.53
      Anti-Seize Lubricant by Permatex®. A highly refined blend of aluminum, copper and graphite lubricants. Use during assembly to prevent galling, corrosion and seizing due to weathering or chemicals. Anti-Seize assures easier...
      A highly refined blend of aluminum, copper and graphite lubricantsAnti-Seize assures easier disassembly
      # 22885683
    • (0 reviews)
      $18.30from $14.64 - $20.76
      Copper Anti-Seize Lubricant by Permatex®. A premium quality copper anti-seize and thread lubricant that may be used to prevent seizing, corrosion and galling where high temperature conditions exist. Contains a high percentage of...
      Used to prevent seizing, corrosion and galling where high temperature conditions existTemperature range: -30°F to 1800°F (-34°C to 982°C)
      # 22885690
    • (0 reviews)
      $3.40$2.72
      Fuel Injector and Carburetor Treatment by STP®, 5.25 oz. This great product is right what the doctor ordered to restore the optimum operating condition of the fuel system. It saves gas, fights deposit buildup and maintains optimum...
      Helps restore optimum performanceMaintains engine efficiency
      # 42298669
    • (0 reviews)
      $3.93$3.14
      Gas Treatment by STP®, 5.25 oz. This revolutionary treatment is a sure way to improve the quality of gas and keep fuel injectors and intake valves clean. Powerful cleaning agents help fight the accumulation of harmful carbon, gum...
      Helps restore optimum performanceMaintains engine efficiency
      # 42298670
    • (0 reviews)
      $5.31$4.25
      Super Concentrated Fuel Injector Cleaner by STP®, 5.25 oz. This super concentrated fuel injector cleaner is designed to restore the performance of the fuel system in just one treatment. It contains concentrated detergents that help...
      Restores the performance of the fuel systemSaves gas
      # 42298671
    • (0 reviews)
      $5.45$4.36
      High Mileage Fuel Injector Cleaner by STP®, 5.25 oz. This super concentrated fuel injector cleaner is designed to restore the performance of the fuel system in just one treatment. It contains concentrated detergents that help...
      Restores the performance of the fuel systemSaves gas
      # 42298672



    Guides & Articles
    A Fuel tank sending unit is a term for the mechanical assembly inside your fuel tank which measures the level of liquid in the tank, then reports its findings to the fuel gauge on your instrument cluster. All sending units contain a "float" piece which does just what it describes - floats atop the surface of the fuel. Many automakers design the float piece as an...
    Fuel injectors spray fuel directly into your engine’s cylinders during the intake stroke when a piston moves down to allow air and fuel to fill the cylinder chamber. When injectors are malfunctioning, leaking, or have failed completely, they will cause rough engine performance, poor idle, reduced power and economy, and exhaust that’s rich enough in unburned...
    The throttle controller will basically bypass the computer in the vehicle. It is designed to take the information right from the accelerator position sensor and compile it in a high speed controller circuit that compiles the signal sent from the Accelerator position sensors. With this controller you are able to program it to different options and the throttle...