Standard Ignition FJ638 fuel injector for the 2002-2010 Lexus SC430 V8 4.3L and other vehicles delivers metered fuel to the engine. This Standard Ignition fuel injector is specifically designed for Lexus engines.
- Corrosion-resistant brass terminals for more consistent performance
- Stainless steel calibration slide and spring for corrosion resistance
- End-of-line tested and calibrated
- Engine-specific laser-drilled metering discs set fuel flow rate and spray pattern; engine-specific nozzle atomizes the fuel
- High-temperature Viton(R) O-rings seal against fuel leaks
- Validated through lab, climate and real-world vehicle testing
Quick facts
- Part: Standard Ignition FJ638 fuel injector
- Fits: 2002-2010 Lexus SC430 V8 4.3L and other vehicles
- Condition: New
A worn or leaking fuel injector can show up as a rough idle, hesitation or poor fuel economy, but those signs can have other causes. Before replacing it, look at the fuel injector body, O-ring area and connector with the engine off and cool for cracks or fuel wetness.
Fits
Listed for a wide range of Lexus models, it fits the 2002-2010 Lexus SC430 V8 4.3L, the 2001-2007 Lexus GS430 V8 4.3L and the 2004-2006 Lexus LS430 V8 4.3L. This listing is one fuel injector, and these engines take four. If your Lexus is not named here, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 4
- System type: MFI
- Fuel type: Gas
- Terminals: 2, male blade
- Attachment: Plug-in
Build and materials
- Condition: New
- Terminal material: Brass
- Calibration slide and spring: Stainless steel
- O-rings: Viton(R), included
- Country of origin: United States
In the box
One fuel injector with O-rings. Retainer clips are not included, so plan on new ones.
Interchange: 2-18760 · 800-1601N
57843 · 2320950050
This part cross-references / interchanges with the following part numbers:
57843, 2-18760, 2320950050, 800-1601N, FJ638
Frequently Asked Questions
Is the FJ638 a fuel injector for the 2004-2006 Lexus LS430 V8 4.3L?
Yes. Standard Ignition FJ638 is listed for the 2004-2006 Lexus LS430 V8 4.3L, which takes four. The "Vehicles it fits" section shows whether your other Lexus is covered.
Does the FJ638 fuel injector come with O-rings?
Yes. Each Standard Ignition FJ638 fuel injector includes O-rings, but retainer clips are not included.
What are the O-rings on this fuel injector made of?
This fuel injector has high-temperature Viton(R) O-rings that seal against fuel leaks.
Does the FJ638 fuel injector replace part number 57843?
Yes. Standard Ignition FJ638 replaces number 57843, and the other cross-references are 2-18760, 800-1601N and 2320950050.
What kind of electrical connector does this fuel injector have?
This fuel injector has two male blade terminals made of corrosion-resistant brass, and it attaches by plug-in.
