Fuel injectors are the components that spray fuel into the intake air stream in a fuel injection system. Unlike a carburetor that relies on pressure differential to atomize and draw fuel into the engine, fuel injectors spray and atomize fuel supplied by a high pressure pump. Today electronic multiport fuel injection is the most common injection type, but there have been several varieties, and the design and location of the injectors have varied accordingly.

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    • (0 reviews)
      # sp58130
      Fuel Injector by Denso®. One of the true innovators in electronic fuel injection technology, DENSO introduced the 12-hole injector in 1999. Its breakthrough design reduced fuel droplet size to 65 microns, providing superior...
      Maintains new-car smoothness and drivabilityFirst Time Fit® saves valuable shop time
      $27.88 - $275.32
    • (7 reviews)
      # sp5312
      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 OEM replacement...
      Remanufactured OEM part, not similar or aftermarket substituteAffordable alternative to a new OEM injector
      $24.11 - $58.35
    • (0 reviews)
      # sp10573
      GM Original Equipment™ Fuel Injector Rail by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $60.97 - $386.43
    • (3 reviews)
      # sp5778
      Fuel Injector by Delphi®, Delphi fuel injectors are specifically tailored to deliver pressurized, atomized fuel to each cylinder in precise proportions required under extreme conditions. In fact, Delphi performance fuel injectors...
      Improved fuel economy and minimal fuel leakage during vehicle idle due to extremely low drip tipAccurate metering even during extreme temperature and condition (-40°F to 230°F)
      $29.43 - $702.31
    • (1 review)
      # sp28040
      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 reputation for integrity to all channels...
      High quality at an affordable priceExpertly made from premium materials
      $13.79 - $862.02
    • (2 reviews)
      # sp26167
      Replacement Fuel Injector by Hitachi®. 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 time and...
      High quality at an affordable priceExpertly made from premium materials
      +1
      $38.43 - $257.78
    • (0 reviews)
      # sp5901
      Fuel Injector by Bosch®. Replace a defective fuel injector and get rid of poor fuel economy and sluggish performance. The fuel injector from Bosch is a cost-effective solution when you need a compatible replacement part. It...
      Optimal spray pattern for optimum mixture preparation and efficient combustion, also during dynamic driving behaviorReduced consumption and low emissions, particularly during the start and warm-up phase
      +1
      $20.56 - $585.92
    • (0 reviews)
      # sp49304
      Fuel Injector by Cardone®. When applicable, improvements based on typical failure modes of original units are incorporated into the design and manufacture of replacement component parts, which translates into longer service life,...
      50-state emissions street legalThe finest quality at a great price
      $48.23 - $442.53
    • (0 reviews)
      # sp10571
      GM Original Equipment™ Fuel Injector by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $29.14 - $353.03
    • (0 reviews)
      # sp93829
      Professional Fuel Injector by ACDelco®. Protect your Combustion System from contaminants with a high-quality ACDelco Professional Fuel Filter.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $43.39 - $253.58
    • (0 reviews)
      # sp101926
      Direct Injection Fuel Injector by Bosch®. 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 and deliver...
      High quality at an affordable priceExpertly made from premium materials
      $43.30 - $983.80
    • (2 reviews)
      # sp28063
      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 reputation for integrity...
      High quality at an affordable priceExpertly made from premium materials
      +5
      $14.95 - $595.70
    • (1 review)
      # sp5463
      Tru-Tech™ Fuel Injector by Standard®. 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 and deliver great...
      High quality at an affordable priceExpertly made from premium materials
      $27.93 - $84.59
    • (0 reviews)
      # sp5314
      Diesel Fuel Injector by GB Remanufacturing®. This diesel fuel injector is designed to meet or surpass OEM requirements and perform as well as or better than an original part. GB offers quality diesel fuel injectors that will bring...
      Meets or exceeds OE specsAvailable new or remanufactured
      $31.20 - $383.69
    • (0 reviews)
      # sp5316
      Remanufactured CIS Fuel Injector by GB Remanufacturing®. OE-quality or better performance at a reduced cost is what you'll get with this remanufactured CIS Fuel Injector. This part is an exact OEM replacement injector, so it...
      Remanufactured OEM part, not similar or aftermarket substituteAffordable alternative to a new OEM injector
      $25.02 - $31.58
    • (0 reviews)
      # sp5369
      Remanufactured CPI Fuel Injector by GB Remanufacturing®. This CPI Fuel Injector is remanufactured to OEM specifications and fully tested to ensure superior quality and durability. When you choose GB Remanufacturing fuel injectors,...
      Remanufactured OEM part, not similar or aftermarket substituteAffordable alternative to a new OEM injector
      $119.17
    • (0 reviews)
      # sp5368
      Remanufactured SCPI Fuel Injector by GB Remanufacturing®. This part is remanufactured to OEM specifications and fully tested to ensure superior quality and durability. When you choose GB Remanufacturing fuel injectors, you get...
      Remanufactured OEM part, not similar or aftermarket substituteAffordable alternative to a new OEM component
      $29.54 - $231.13
    • (0 reviews)
      # sp5315
      Remanufactured Throttle Body Injector by GB Remanufacturing®. This throttle body injector is remanufactured to OEM specifications and fully tested to ensure superior quality and durability. When you choose GB Remanufacturing fuel...
      Remanufactured OEM part, not similar or aftermarket substituteAffordable alternative to a new OEM injector
      $26.06 - $32.63
    • (0 reviews)
      # sp101950
      Fuel Injector by Genuine®. 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 and deliver great quality at...
      High quality at an affordable priceExpertly made from premium materials
      $59.88 - $405.62
    • (0 reviews)
      # sp101951
      Fuel Injector Rail by Genuine®. 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 and deliver great quality...
      High quality at an affordable priceExpertly made from premium materials
      $10.03 - $182.03
    • (0 reviews)
      # sp5537
      Fuel Injector by Motorcraft®. Properly operating fuel injectors are a crucial component for your vehicle to run flawlessly. Replace your leaky or failed fuel injector with this premium product. Motorcraft fuel injectors are...
      Direct replacement for proper fitEnsures optimum fuel combustion for proper vehicle performance
      $8.87 - $403.81
    • (0 reviews)
      # sp6392
      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 1950’s, brand...
      High quality at an affordable priceExpertly made from premium materials
      +1
      $26.46 - $756.11
    • (0 reviews)
      # sp34525
      Fuel Injector by Aisan®. 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 time and gas running...
      High quality at an affordable priceExpertly made from premium materials
      $73.75 - $193.25
    • (0 reviews)
      # sp34570
      Diesel Injector by Alliant Power®. 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 time and gas...
      High quality at an affordable priceExpertly made from premium materials
      $243.65 - $399.09
    • (0 reviews)
      # sp5031
      Fuel Injector by Auto 7®. Poor acceleration and idling, difficulty in starting the vehicle, and stalling are common fuel delivery system issues. If you're experiencing these symptoms, Auto 7 has the quality parts to repair your...
      Original equipment quality parts for Hyundai, KIA and GM Daewoo vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $15.44 - $131.38
    • (0 reviews)
      # sp27560
      Fuel Injector Rail by Auto 7®. Poor acceleration and idling, difficulty in starting the vehicle, and stalling are common fuel delivery system issues. If you're experiencing these symptoms, Auto 7 has the quality parts to repair...
      Original equipment quality parts for Hyundai, KIA and GM Daewoo vehicles without the original equipment priceAll parts made where the vehicles are made, South Korea
      $14.34 - $16.17
    • (0 reviews)
      # sp38471
      Fuel Injector by Eurospare®. 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 time and gas...
      High quality at an affordable priceExpertly made from premium materials
      $72.90
    • (0 reviews)
      # sp39033
      Remanufactured Fuel Distributor by Fuel Injection Corp®. 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...
      High quality at an affordable priceExpertly made from premium materials
      $382.44 - $488.42
    • (0 reviews)
      # sp39034
      Remanufactured Fuel Injector by Fuel Injection Corp®. 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...
      High quality at an affordable priceExpertly made from premium materials
      $73.67 - $117.85
    • (0 reviews)
      # sp40363
      Fuel Injector by Intermotor®. 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 and deliver great quality...
      High quality at an affordable priceExpertly made from premium materials
      $80.33 - $158.14
    • (0 reviews)
      # sp42435
      Fuel Injector by Mopar®. 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 time and gas running...
      High quality at an affordable priceExpertly made from premium materials
      $34.05 - $196.68
    • (0 reviews)
      # sp16017
      Fuel Injector by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $38.49 - $98.47
    • (0 reviews)
      # mpn2199070112
      Fuel Rail by Crown®. Crown Automotive is just the ticket if you want to get the most out of your vehicle as well as revel in a more exciting driving experience. You will surely get a real bang for the buck!
      Developed to improve your driving experienceConstructed to ensure ultimate operation
      $155.48
    • (0 reviews)
      # sp96990
      Fuel Injectors by Omix-ADA®. 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 and deliver great quality at...
      High quality at an affordable priceExpertly made from premium materials
      $46.51 - $169.74
    • (1 review)
      # sp96853
      Fuel Injector by Original Equipment®. 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 and deliver great...
      High quality at an affordable priceExpertly made from premium materials
      $67.43 - $240.74
    • (0 reviews)
      # sp21443
      Fuel Injector by Pacer®. 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 time and gas running...
      High quality at an affordable priceExpertly made from premium materials
      $104.47 - $127.58
    • (0 reviews)
      # sp43586
      Fuel Injector by Paraut®. 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 time and gas running...
      High quality at an affordable priceExpertly made from premium materials
      $127.26 - $178.47
    • (0 reviews)
      # sp1853
      Fuel Injector by Python®. 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 time and gas running...
      High quality at an affordable priceExpertly made from premium materials
      $39.00 - $92.04
    • (0 reviews)
      # sp21386
      Fuel Injector by Siemens®. 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 time and gas running...
      High quality at an affordable priceExpertly made from premium materials
      $106.99 - $123.17
    • (0 reviews)
      # mpn2016945821
      Fuel Injector by VDO®. Includes: O-Rings. 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 and deliver...
      High quality at an affordable priceExpertly made from premium materials
      $121.46
    • (0 reviews)
      # mpn2016945824
      Fuel Injector by VDO®. 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 and deliver great quality at an...
      High quality at an affordable priceExpertly made from premium materials
      $76.79
    • (0 reviews)
      # mpn2387879
      Fuel Injector by VDO®. 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 and deliver great quality at an...
      High quality at an affordable priceExpertly made from premium materials
      $114.66
    • (0 reviews)
      # sp66915
      Fuel Injector by Merchant Automotive®. Designed utilizing the latest technology, this product by Merchant Automotive features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $383.62
    • (0 reviews)
      # mpn469957227
      Motorsports SAC45 Bosch Injectors by Merchant Automotive®. Motorsport injector has new/preferred SAC nozzle with up to 45% increased flow. Can be used with stock tune. These injectors replace the old style 30% honed injectors. This...
      High quality at an affordable priceExpertly made from premium materials
      $4,616.87
    • (0 reviews)
      # mpn358728992
      Fuel Rail by Chevrolet Performance®. Fuel Rail Assembly LS2/LS3. This FUEL RAIL is a genuine OEM GM part #12633511 and carries a factory warranty. This product is made of high-quality materials to serve you for years to come....
      High quality at an affordable priceExpertly made from premium materials
      $174.78
    • (0 reviews)
      # sp50719
      Common Rail Injector by Area Diesel Service®. 1 Piece. Magnum Quality Replacement Parts were born out of a need for a high quality alternative to overpriced parts from the OEM dealers. Our 40+ years of experience in fuel injection...
      High quality at an affordable priceExpertly made from premium materials
      $260.20 - $448.12
    • (0 reviews)
      # sp50731
      HEUI Injector by Area Diesel Service®. 1 Piece. Magnum Quality Replacement Parts were born out of a need for a high quality alternative to overpriced parts from the OEM dealers. Our 40+ years of experience in fuel injection and...
      High quality at an affordable priceExpertly made from premium materials
      $202.01 - $225.00
    • (0 reviews)
      # mpn469948864
      Injector by Area Diesel Service®. 1 Piece. Magnum Quality Replacement Parts were born out of a need for a high quality alternative to overpriced parts from the OEM dealers. 40+ years of experience in fuel injection and...
      Built to match your exact requirementsHigh quality you can rely on
      $94.92
    • (0 reviews)
      # mpn469948855
      Mechanical Fuel Injector by Area Diesel Service®. 1 Piece. Magnum Quality Replacement Parts were born out of a need for a high quality alternative to overpriced parts from the OEM dealers. 40+ years of experience in fuel injection...
      Built to match your exact requirementsHigh quality you can rely on
      $72.53
    • (0 reviews)
      # sp101935
      Diesel Fuel Injector Pump Pressure Relief Valve by Delphi®. Delphi’s fuel pressure regulators are made from robust diaphragm materials to provide longer life and improved durability. Delphi precisely manufactured internal valves,...
      High quality at an affordable priceExpertly made from premium materials
      $256.56
    • (0 reviews)
      # sp28031
      Diesel Fuel Injector Pump Pressure Relief Valve 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...
      High quality at an affordable priceExpertly made from premium materials
      $378.81 - $491.87
    • (0 reviews)
      # sp28036
      Fuel Injection System Heater 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 reputation for integrity...
      High quality at an affordable priceExpertly made from premium materials
      $43.32 - $169.34
    • (0 reviews)
      # sp28038
      Fuel Injection System Valve 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 reputation for integrity...
      High quality at an affordable priceExpertly made from premium materials
      $118.74
    • (0 reviews)
      # mpn4418054230
      Fuel Injector Sleeve 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 reputation for integrity to all...
      High quality at an affordable priceExpertly made from premium materials
      $15.30
    • (0 reviews)
      # mpn4418068782
      Fuel Injector Sleeve 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 reputation for integrity to all...
      High quality at an affordable priceExpertly made from premium materials
      $3.95
    • (0 reviews)
      # sp98034
      Intermotor Fuel Injection System Valve 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 reputation for...
      High quality at an affordable priceExpertly made from premium materials
      $42.74 - $394.34
    • (0 reviews)
      # sp103526
      Fuel Injector Line by Dorman®. Dorman’s Fuel Injection Pressure Regulator effectively adjusts the fuel pressure to the fuel injectors. The Fuel Injection Pressure Regulator is constructed of high-quality materials for a long...
      Replacement restores engine performanceSave time, money and labor by replacing only the Fuel Injection Pressure Regulator, instead of the entire Fuel Injector
      $29.39 - $63.55
    • (0 reviews)
      # sp39380
      Cold Start Valve 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 your time and gas...
      High quality at an affordable priceExpertly made from premium materials
      $233.95
    • (0 reviews)
      # mpn3613433563
      Distributor Check Valve by Motorcraft®. Color: Black and Blue. Motorcraft is the way to restore the performance of your vehicle. Designed specifically for your vehicle, Motorcraft products meet stringent Ford Motor Company...
      Direct OEM replacementMeets strict Ford Motor Company standards
      $14.91
    • (0 reviews)
      # sp96114
      Cold Start Valve by Kyosan®. 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 and deliver great quality at...
      High quality at an affordable priceExpertly made from premium materials
      $68.62 - $75.07




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    Fuel injection began to replace carburetors in the 1970s. The mechanical Continuous Injection System (CIS) was an early variant found on European cars. In this system injectors mounted in the ports just ahead of the intake valves sprayed fuel continuously. The volume of fuel supplied to the injectors varied according to intake airflow. CIS evolved into the electronically controlled CIS-E, which managed fuel flow in response to inputs from various sensors.

    Throttle Body Injection (TBI) was the first type of fuel injection used on many domestic cars and trucks in the 1980s, and was sort of a transition from carburetors to port injection. A TBI assembly is similar in size to a carburetor, mounts on an intake manifold and takes a similar air cleaner assembly. TBI is a self-contained fuel injection system with an integral fuel pressure regulator and one or two injectors mounted over the throttle plates. The injector contains a solenoid that, when energized by the PCM (Powertrain Control Module) moves a plunger that opens a valve, allowing fuel to spray from the injector nozzle.

    Port fuel injectors are mounted in the intake manifold runners or cylinder head ahead of the intake valves. They are connected to the fuel rail, which is supplied with fuel from an electric fuel pump. A pressure regulator maintains a constant fuel pressure. In response to inputs from the oxygen sensor, mass airflow sensor, throttle position sensor, and other sensors, the PCM adjusts the pulse width, the length of time the injectors are open, so the amount of fuel injected can be tailored to engine load. In general, the pulse width is shorter at idle when less fuel is needed, and lengthened when the engine is under load and more fuel is needed.

    Gasoline Direct Injection (GDI) is the latest form of fuel injection. Similar to a diesel engine, GDI injects fuel under extremely high pressure directly into the combustion chamber. GDI uses special quick response, high pressure fuel injectors, which allows the PCM to vary the timing of the injection event according to operating needs, and enables multiple injections. We offer new and remanufactured fuel injectors for all popular vehicles and fuel injection systems, as well as the necessary related components like fuel rails and the O-ring seals, which should be replaced whenever an injector is removed and installed.

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    • Replacement Fuel System Parts
      August 03, 2014
      How To Replace Fuel Injectors
      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....

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    CPosted by Chris (San Lorenzo, CA) / May 7, 2017
    1987 BMW 3-Series
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