Standard Ignition FJ1421 Fuel Injector

Overview of Standard Ignition Fuel Injector FJ1421

The Standard Ignition FJ1421 fuel injector is designed specifically for Lexus RX350, RX450h, and RX450hL models. This new GDI injector features a top feed system and includes O-rings for a secure and leak-free installation.

• Compatible with Lexus RX350, RX450h, RX450hL
• New GDI fuel injector with part number FJ1421
• Top feed system type for efficient fuel delivery
• Includes O-rings for proper sealing
• Black and silver finish for durability
• Female blade terminals with two connections

Detailed Product Description

The Standard Ignition FJ1421 fuel injector is engineered to meet the fuel delivery requirements of Lexus RX350, RX450h, and RX450hL vehicles. This new injector utilizes a Gasoline Direct Injection (GDI) design, which allows for precise fuel atomization and improved combustion efficiency. The top feed system ensures optimal fuel flow, while the included O-rings provide a tight seal to prevent leaks. The injector terminals are female blade type with two connections, ensuring compatibility with the vehicle’s wiring harness. The black and silver finish adds corrosion resistance and durability under engine bay conditions.

Common Applications and Issues Addressed

• Restores proper fuel delivery in Lexus RX350 and RX450h models
• Resolves rough idling or engine misfires caused by faulty injectors
• Eliminates poor fuel economy related to injector malfunction
• Fixes hard starting issues linked to inconsistent fuel flow
• Prevents fuel leaks with included O-rings for a secure fit

Installation Notes and Tips

When installing the Standard Ignition FJ1421 fuel injector, ensure the O-rings are properly lubricated to avoid damage during insertion. Verify the top feed orientation matches the vehicle’s fuel rail setup. Confirm the female blade terminals align correctly with the wiring harness connectors. It is recommended to inspect the fuel rail and surrounding components for wear or damage before installation. Follow all manufacturer torque specifications and safety precautions during replacement.

Quality Assurance and Warranty

Standard Ignition manufactures the FJ1421 fuel injector to meet OEM specifications for fit, form, and function. Each injector undergoes rigorous testing to ensure reliable performance and durability. This product comes with a limited warranty covering defects in materials and workmanship, providing confidence in its long-term operation within Lexus RX350, RX450h, and RX450hL vehicles.