Standard Ignition FJ491 Fuel Injector

Overview of Standard Ignition Fuel Injector FJ491

The Standard Ignition FJ491 fuel injector is designed for precise fuel delivery in select BMW models. This new MFI injector features a silver finish and includes O-rings for a secure seal, ensuring reliable performance in your vehicle's fuel injection system.

• Compatible with BMW 320i, 323Ci, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, 525i, 528i, X3, Z3, and Z4 models
• New MFI fuel injector with silver color/finish
• Fuel delivery type: Gasoline
• Includes O-rings for proper sealing
• Terminal type: 2 male blade terminals
• Hardware not included

Detailed Product Description

The Standard Ignition FJ491 fuel injector is engineered to meet the fuel delivery requirements of various BMW vehicles, including popular models such as the 320i, 325i, and X3. This MFI (Multi-Point Fuel Injection) injector provides consistent and accurate fuel atomization, which is critical for optimal engine performance and fuel efficiency. The injector’s silver finish offers corrosion resistance, while the included O-rings help maintain a tight seal to prevent fuel leaks. Featuring two male blade terminals, this injector is designed for straightforward electrical connections within the fuel injection system.

Common Applications and Issues Addressed

• Restores proper fuel delivery in BMW 328i and 525i engines
• Resolves rough idling and engine misfires caused by faulty injectors
• Improves fuel efficiency and throttle response in 323Ci and Z4 models
• Eliminates fuel leaks due to worn or damaged injector seals
• Supports emission control by ensuring correct fuel atomization

Installation Notes and Tips

• Ensure the engine is cool before beginning installation
• Use the included O-rings to prevent fuel leaks and secure injector fitment
• Check electrical connections for corrosion or damage before attaching terminals
• Do not reuse old hardware; new hardware is not included with this part
• Consult vehicle service manual for torque specifications and injector removal procedures

Quality Assurance and Warranty

Standard Ignition provides this FJ491 fuel injector as a new replacement part, manufactured to meet OEM specifications for fit, form, and function. The injector undergoes rigorous quality control to ensure durability and reliable operation in compatible BMW models. While specific warranty details may vary, Standard Ignition parts typically come with a limited warranty against defects in materials and workmanship.