Genuine BMW Genuine BMW Fuel Injector Replacement Kit - BMW B58 3.0L (Gen1 B58 / B58A) b58afirKT

Genuine BMW Fuel Injector Replacement Kit - BMW B58 3.0L (Gen1 B58 / B58A)

This Fuel Injector Replacement Kit includes new injectors and hardware to service your fuel injection system, eliminating rough idle, low power, and check engine lights due to faulty fuel injectors.
Genuine BMW Genuine BMW
T#: 50031892 | Part#: b58afirKT
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Genuine BMW Fuel Injector Replacement Kit - BMW B58 3.0L (Gen1 B58 / B58A)
$2288.99

The fuel injectors in your BMW are the cornerstone of its high-pressure direct injection (DI) system. Unlike traditional port-injection setups, DI injectors are seated directly within the combustion chamber. This configuration allows for a highly atomized fuel mist and precise timing, but it also subjects the injector tips to extreme thermal loads, high cylinder pressures, and consistent carbon fouling.

Over time, these harsh operating conditions degrade the injector’s internal tolerances and nozzle integrity. This degradation results in compromised spray patterns and inaccurate fuel metering, which can manifest as:

  • Reduced Power Output - Inefficient combustion due to poor atomization
  • Fuel Trim Imbalances - Lean or rich running conditions that can trigger "Check Engine" lights
  • Drivability Issues - Rough idling, erratic acceleration, or persistent misfires
  • Decreased Efficiency - Noticeable drops in fuel economy

When one injector fails, the remaining injectors are likely nearing the end of their service life as well. This Fuel Injector Replacement Kit is designed to provide a complete service to the fuel injection system.

Since BMW classifies the majority of the high-pressure fuel system hardware as single-use (stretch) bolts, reusing old fasteners can lead to improper torque-to-yield specs and potential fuel leaks. To ensure a professional-grade installation, we have bundled the injectors with all the required Genuine BMW hardware.

Kit Components

  • Genuine BMW Fuel Injectors - Direct-replacement units calibrated for factory-spec flow and atomization
  • Genuine BMW Fuel Rail Mounting Bolts -  Critical for maintaining the structural integrity of the high-pressure rail
  • Genuine BMW Injector Bracket Bolts -  Ensures precise injector alignment and seating
  • Genuine BMW High-Pressure Fuel Pump (HPFP) Bolts - Necessary for any service requiring the removal of the high-pressure lines

Prop 65 WarningProp 65 Warning
Qty Description T# Part# Lifetime
6 Genuine BMW Fuel Injector - 13538625396 T#194734 13538625396 YES
2 Genuine BMW High Pressure Fuel Pump Mounting Bolt - M6X25-U1 - BMW N20 N55 B38 B48 B58 T#207714 13517632572~OEM YES
8 Genuine BMW Fuel Injection Fuel Rail Bolt - BM6X70-8.8 - BMW MINI B38 B46 B48 B58 (Gen 1 2 & 3) T#525919 13538661715 YES
12 Genuine BMW Fuel Injector Bracket Screw - 5X30-10.9 - BMW MINI B38 B46 B48 B58 (Gen 1 2 & 3) T#541393 13538661716 YES

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Lifetime Replacement

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MAKE MODEL SUBMODEL ENGINE Special Fitment Notes
BMW F22 M240i B58 3.0L Use vehicle selector to confirm fitment
BMW F22 M240i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW F23 M240i B58 3.0L Use vehicle selector to confirm fitment
BMW F23 M240i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW F30 340i B58 3.0L Use vehicle selector to confirm fitment
BMW F30 340i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW F32 440i B58 3.0L Use vehicle selector to confirm fitment
BMW F32 440i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW F33 440i B58 3.0L Use vehicle selector to confirm fitment
BMW F33 440i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW F34 340i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW F36 440i B58 3.0L Use vehicle selector to confirm fitment
BMW F36 440i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW G01 X3 M40i B58 3.0L For vehicles with the earlier Gen1 B58 engine only
BMW G02 X4 M40i B58 3.0L For vehicles with the earlier Gen1 B58 engine only
BMW G30 540i B58 3.0L For vehicles with the earlier Gen1 B58 engine only
BMW G30 540i xDrive B58 3.0L For vehicles with the earlier Gen1 B58 engine only
BMW G32 640i xDrive B58 3.0L For vehicles with the earlier Gen1 B58 engine only
*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.