How to replace fuel injectors and reinstall the fuel rail on Mazda 3?

Disconnect the cable from the negative battery terminal. Remove the upper engine cover by pulling it up from each side and lifting it off the mounting posts in the center. Relieve the fuel system pressure. Disconnect the fuel supply line quick-connect fitting from the fuel rail. Disconnect the electrical connectors for all wiring that shares the harness with the fuel injectors, then disconnect the four fuel injector electrical connectors. Remove the fuel rail mounting fasteners, then take out the fuel rail and injectors as an assembly. Use needle-nose pliers to remove each fuel injector retaining clip and take the injector out of its bore in the fuel rail, discarding the upper and lower injector O-rings. It is advisable to replace all O-rings even if only one injector is being replaced. Coat the new upper O-rings with clean engine oil and slide them into place on each injector, then do the same for the lower O-rings. Coat the outside surface of each upper O-ring with clean engine oil and insert each injector into its bore in the fuel rail. Install the injectors and fuel rail assembly on the intake manifold, tightening the fuel rail mounting fasteners securely. The remainder of the installation follows the reverse order of removal. Reconnect the cable to the negative battery terminal. Turn the ignition switch to ON without operating the starter to activate the fuel pump for about two seconds, building up fuel pressure in the lines and rail. Repeat this step two or three times, then check for fuel leaks in the lines, rails, and injectors.

How to remove and install fuel injectors on Mazda B2200?

Install and remove engine fuel injectors in 4-cylinder engines First, relieve the fuel system pressure, then dismount the air chamber, loosen the vacuum hose and fuel lines and disassemble the pressure regulator and fuel rail assembly. Un-hook the injector wiring and remove the injectors, removing the grommets and O-rings. To install, follow the steps reversed, making sure to tighten the fuel rail bolts to 15 ft.lbs. (20Nm) and with new O-rings covered with clean engine oil. In the case of a 3.0L engine, remove the injector harness, invert the fuel rail assembly, take off the lock rings, and remove the injectors. When using injectors that are in reuse, limit the openings to avoid contamination, lubricate fresh O-rings with engine oil and assemble the injectors into the fuel rail receiver cups, put in the lock rings later. In an engine with a capacity of 4.0L, unscrew the negative battery cable, discharge pressure of the fuel, and take off the upper intake manifold and throttle body assembly. Take off the fuel supply manifold, then take off the injector retaining clips and injector discarding the O-rings. Check the injector caps and change them in case of necessity. Apply clean light-grade oil to new O-rings and install them on the 2 injectors and the injectors are then installed carefully with a twisting motion. Install the fuel supply manifold making sure that the O-rings are placed in place then the upper intake manifold and throttle body assembly. Once installed, re-connect the negative battery cable, press the ignition ON to pressurize the system and leaks. Lastly, install the injector wire connectors and the vacuum line, attach the air inlet tube and restart the engine and again check the leakage. To test, disconnect the engine wiring harness connector to the injector, place a Digital Volt-Ohmmeter (DVOM) to probe into the connector and set the meter to a resistance value from 12-16 ohms, then check the resistance of the injector, which is expected to be within this range, a value 12-16 ohms; otherwise the injector is compromised and should be replaced.

Genuine Mazda Fuel Injector

Gas Injector

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63 Fuel Injectors found

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Mazda Injector Part Number: SH17-13-H50
$698.84 MSRP: $954.89
You Save: $256.05 (27%)
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Fits the following Mazda Models:
- CX-5 | 2019 | Signature
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Mazda Injector Part Number: 1F22-13-250
$49.44 MSRP: $65.93
You Save: $16.49 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Injector
Fits the following Mazda Models:
- B4000 | 2001-2003 | Base, DS, SE | 6 Cyl 4.0 L GAS
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Mazda Injector Part Number: AJ51-13-250
$63.25 MSRP: $84.35
You Save: $21.10 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Injector
Fits the following Mazda Models:
- 6 | 2003-2008 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- MPV | 2002-2006 | ES, LX, LX-SV | 6 Cyl 3.0 L GAS
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Mazda Injector Part Number: 1F70-13-250
$92.25 MSRP: $123.02
You Save: $30.77 (26%)
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Product Specifications
- Other Name: Injection, Fuel-Multi-Point Electrical
Fits the following Mazda Models:
- B2300 | 2003-2006 | Base, SE | 4 Cyl 2.3 L GAS
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Mazda Injector Part Number: L363-13-250
$53.96 MSRP: $71.96
You Save: $18.00 (26%)
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Product Specifications
- Other Name: Injection, Fuel-Multi-Point Electrical
Fits the following Mazda Models:
- Tribute | 2008, 2005-2006 | i | 4 Cyl 2.3 L GAS
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Mazda Injector Part Number: L507-13-250
$51.50 MSRP: $68.68
You Save: $17.18 (26%)
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Product Specifications
- Other Name: Injector, Fuel
Fits the following Mazda Models:
- Tribute | 2009-2011 | Hybrid, i | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mazda Injector Part Number: 1F21-13-250B
$60.14 MSRP: $80.20
You Save: $20.06 (26%)
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Product Specifications
- Other Name: Injector, Fuel
- Replaces: 1F21-13-250A, 1F21-13-250
Fits the following Mazda Models:
- B3000 | 2001-2007 | Base, DS, SE | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mazda Injector Part Number: L501-13-250
$73.03 MSRP: $97.38
You Save: $24.35 (26%)
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Product Specifications
- Other Name: Injector, Fuel
Fits the following Mazda Models:
- 3 | 2010-2013 | S | 4 Cyl 2.5 L GAS
- 5 | 2012-2015 | Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
- 6 | 2009-2013 | i | 4 Cyl 2.5 L GAS
- CX-7 | 2010-2012 | Sport, SV, Touring | 4 Cyl 2.5 L GAS
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Mazda Injector Part Number: 1F82-13-250A
$65.64 MSRP: $87.53
You Save: $21.89 (26%)
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Product Specifications
- Other Name: Injector, Fuel
- Replaces: 1F82-13-250
Fits the following Mazda Models:
- B4000 | 2005-2006 | Base, SE | 6 Cyl 4.0 L GAS
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Mazda Injector Part Number: AJC8-13-250A
$73.00 MSRP: $97.35
You Save: $24.35 (26%)
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Product Specifications
- Other Name: Injector, Fuel
- Replaces: AJTT-13-250, AJC8-13-250
Fits the following Mazda Models:
- Tribute | 2008 | S | 6 Cyl 3.0 L GAS
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Mazda Injector Part Number: PXNS-13-250A
$73.98 MSRP: $98.65
You Save: $24.67 (26%)
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Product Specifications
- Other Name: Injector, Fuel; Injector
Fits the following Mazda Models:
- CX-30 | 2023 | 2.5 S, 2.5 S Carbon Edition | 4 Cyl 2.5 L GAS
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Mazda Injector Part Number: PYFA-13-250A
$145.80 MSRP: $194.44
You Save: $48.64 (26%)
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Product Specifications
- Other Name: Fuel Injector; Injector
Fits the following Mazda Models:
- 3 | 2019-2023 | 2.5 S, Base, Carbon Edition, Preferred, Premium, Select | 4 Cyl 2.5 L GAS
- 6 | 2018-2020 | Sport, Touring | 4 Cyl 2.5 L GAS
- CX-30 | 2020-2022 | 2.5 S, 2.5 S Carbon Edition, Base, Preferred, Premium, Select | 4 Cyl 2.5 L GAS
- CX-5 | 2019-2022 | 2.5 S, 2.5 S Carbon Edition, Carbon Edition, Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda Injector Part Number: PE27-13-250
$152.41 MSRP: $203.25
You Save: $50.84 (26%)
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Product Specifications
- Other Name: Injector, Fuel; Injector
Fits the following Mazda Models:
- 3 | 2021-2022 | 2.0 | 4 Cyl 2.0 L GAS
- CX-3 | 2019-2020 | Grand Touring, Sport, Touring | 4 Cyl 2.0 L GAS
- MX-5 Miata | 2019-2022 | 100th Anniversary Special Edition, Club, Grand Touring, RF 100th Anniversary Special Edition, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda Injector Part Number: LF64-13-250
$165.48 MSRP: $220.68
You Save: $55.20 (26%)
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Product Specifications
- Other Name: Injection, Fuel-Multi-Point Electrical
Fits the following Mazda Models:
- 3 | 2004-2005 | i | 4 Cyl 2.0 L GAS
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Mazda Injector Part Number: L3G5-13-250
$170.04 MSRP: $226.77
You Save: $56.73 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector, Fuel
- Replaces: L3Y2-13-250, L3G2-13-250, L3G2-13-250A
Fits the following Mazda Models:
- 3 | 2006-2013 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- 5 | 2008-2010 | Grand Touring, Sport, Touring | 4 Cyl 2.3 L GAS
- 6 | 2005-2008 | i, Mazdaspeed, S | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- MX-5 Miata | 2006-2015 | 25th Anniversary Edition, Base, Club, Club Spec, Grand Touring, Special Edition, Sport, SV, Touring | 4 Cyl 2.0 L GAS
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Mazda Injector Part Number: PX9R-13-250
$176.94 MSRP: $235.96
You Save: $59.02 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Injector, Fuel; Injector
Fits the following Mazda Models:
- CX-30 | 2023 | 2.5 S, 2.5 S Carbon Edition | 4 Cyl 2.5 L GAS
- CX-5 | 2019-2022 | 2.5 S, 2.5 S Carbon Edition, Carbon Edition, Grand Touring, Sport, Touring | 4 Cyl 2.5 L GAS
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Mazda Injector Part Number: JE26-13-250
$170.46 MSRP: $227.33
You Save: $56.87 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fuel Injector
- Replaces: JE26-13-250R-00
Fits the following Mazda Models:
- 929 | 1990-1991 | Base, S | 6 Cyl 3.0 L GAS
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Mazda Injector Part Number: FP35-13-250
$187.45 MSRP: $249.99
You Save: $62.54 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Injection, Fuel-Multi-Point Electrical
Fits the following Mazda Models:
- 626 | 2000-2002 | ES, LX | 4 Cyl 2.0 L GAS
- Protege | 1999-2000 | ES | 4 Cyl 1.8 L GAS
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Mazda Injector Part Number: AJ03-13-250A
Product Specifications
- Other Name: Injection, Fuel-Multi-Point Electrical
- Replaces: AJ03-13-250
Fits the following Mazda Models:
- Tribute | 2001-2006 | DX, ES, LX, S | 6 Cyl 3.0 L GAS
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Mazda Injector Part Number: LF62-13-250
Product Specifications
- Other Name: Injection, Fuel-Multi-Point Electrical
Fits the following Mazda Models:
- 3 | 2004-2009 | i, Mazdaspeed, S | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS

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1-20 of 63 Results

Mazda Fuel Injector

Mazda Fuel Injector is an accurate way of metering gasoline into the engine, giving every vehicle brisk throttle response and cleaner emissions. Mazda started car production in 1931 and gained renown for its rotary power surge in the 1960s and today touts the spirited Kodo design, making each model look like it is moving even when it is not. The company combines this sculpted style with i-Activsense safety aids, i-Activ AWD grip, and evolving electric and mild hybrid options, giving drivers confidence as well as low fuel bills. Lightweight Skyactiv engines and transmissions reduce waste energy and the brand remains keen on the fun to drive feel that has always set Mazda apart from rivals. While the aforementioned traits excite owners, the Fuel Injector quietly supports them all by replacing old carburetors with electronic precision. Governed by the engine control unit, the Fuel Injector sprays a fine mist at the same moment when air rushes past the open valve or directly into the combustion chamber, forming an even mixture that burns with maximum power and minimum soot. Its returnless high pressure layout reduces weight, helps reduce vapor loss, and increases durability across the entire Mazda lineup. When every pintle is cleanly opened, starts are instantaneous, idle is smooth, and torque arrives early, reinforcing the lively character that defines Mazda.

You'll get great performance and real durability when you pick genuine OEM Fuel Injector. Mazda builds these using high-quality materials and official factory methods to ensure they hold up mile after mile. You deserve that Mazda reliability without the headache of cheap knockoffs. It is easy to find exactly what you need in our huge inventory of genuine parts. Plus, every OEM part carries a real manufacturer's warranty for your peace of mind. You will love our low prices too. Order today and we will ship your brand-new parts fast. They often reach your door in just a few days.

Mazda Fuel Injector Parts and Q&A

Injector
L3K9-13-250A
Q: How to replace fuel injectors and reinstall the fuel rail on Mazda 3?
A:
Disconnect the cable from the negative battery terminal. Remove the upper engine cover by pulling it up from each side and lifting it off the mounting posts in the center. Relieve the fuel system pressure. Disconnect the fuel supply line quick-connect fitting from the fuel rail. Disconnect the electrical connectors for all wiring that shares the harness with the fuel injectors, then disconnect the four fuel injector electrical connectors. Remove the fuel rail mounting fasteners, then take out the fuel rail and injectors as an assembly. Use needle-nose pliers to remove each fuel injector retaining clip and take the injector out of its bore in the fuel rail, discarding the upper and lower injector O-rings. It is advisable to replace all O-rings even if only one injector is being replaced. Coat the new upper O-rings with clean engine oil and slide them into place on each injector, then do the same for the lower O-rings. Coat the outside surface of each upper O-ring with clean engine oil and insert each injector into its bore in the fuel rail. Install the injectors and fuel rail assembly on the intake manifold, tightening the fuel rail mounting fasteners securely. The remainder of the installation follows the reverse order of removal. Reconnect the cable to the negative battery terminal. Turn the ignition switch to ON without operating the starter to activate the fuel pump for about two seconds, building up fuel pressure in the lines and rail. Repeat this step two or three times, then check for fuel leaks in the lines, rails, and injectors.
Injector
F2G8-13-250
Q: How to remove and install fuel injectors on Mazda B2200?
A:
Install and remove engine fuel injectors in 4-cylinder engines First, relieve the fuel system pressure, then dismount the air chamber, loosen the vacuum hose and fuel lines and disassemble the pressure regulator and fuel rail assembly. Un-hook the injector wiring and remove the injectors, removing the grommets and O-rings. To install, follow the steps reversed, making sure to tighten the fuel rail bolts to 15 ft.lbs. (20Nm) and with new O-rings covered with clean engine oil. In the case of a 3.0L engine, remove the injector harness, invert the fuel rail assembly, take off the lock rings, and remove the injectors. When using injectors that are in reuse, limit the openings to avoid contamination, lubricate fresh O-rings with engine oil and assemble the injectors into the fuel rail receiver cups, put in the lock rings later. In an engine with a capacity of 4.0L, unscrew the negative battery cable, discharge pressure of the fuel, and take off the upper intake manifold and throttle body assembly. Take off the fuel supply manifold, then take off the injector retaining clips and injector discarding the O-rings. Check the injector caps and change them in case of necessity. Apply clean light-grade oil to new O-rings and install them on the 2 injectors and the injectors are then installed carefully with a twisting motion. Install the fuel supply manifold making sure that the O-rings are placed in place then the upper intake manifold and throttle body assembly. Once installed, re-connect the negative battery cable, press the ignition ON to pressurize the system and leaks. Lastly, install the injector wire connectors and the vacuum line, attach the air inlet tube and restart the engine and again check the leakage. To test, disconnect the engine wiring harness connector to the injector, place a Digital Volt-Ohmmeter (DVOM) to probe into the connector and set the meter to a resistance value from 12-16 ohms, then check the resistance of the injector, which is expected to be within this range, a value 12-16 ohms; otherwise the injector is compromised and should be replaced.