Standard Ignition FJ739 fuel injector for the 2004-2006 BMW X5 V8 4.4L, the 2004-2010 X5 V8 4.8L and other vehicles sprays metered fuel into the engine for combustion. The part is 100% new and made specifically for BMW engines.
- Corrosion-resistant brass terminals for more consistent performance
- Stainless steel calibration slide and spring for corrosion resistance and long-term consistency
- End-of-line tested and calibrated
- Engine-specific, laser-drilled metering discs that calibrate fuel flow rate and spray pattern
- Engine-specific, high-precision nozzle for fuel atomization and efficient combustion
- High-temperature Viton® O-rings that seal in extreme conditions and prevent fuel leaks
Quick facts
- Part: Standard Ignition FJ739 fuel injector
- Fits: the 2004-2006 BMW X5 V8 4.4L, the 2004-2010 X5 V8 4.8L and other vehicles
- Condition: New
A rough idle, a misfire or hesitation can point to an injector that no longer meters fuel well. Worn spark plugs, a weak ignition coil or a vacuum leak can produce those symptoms too, so track down which one is responsible before you buy an injector.
Fits
It is listed for a wide range of BMW models, led by the 2004-2006 BMW X5 V8 4.4L, the 2004-2010 X5 V8 4.8L, the 2006-2010 BMW 550i V8 4.8L and the 2006-2010 BMW 650i V8 4.8L. This listing is one injector, and these engines take eight. If your BMW is not named here, look up its year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 8
- Terminals: 2 male blade terminals
Build and materials
- Condition: New
- Terminal material: brass
- Calibration slide and spring: stainless steel
- O-rings: Viton®
- Country of origin: Italy
Interchange: 2-18029 · 800-1716N
13647523423 · 13647525721 · 67321
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
13647523423, 13647525721, 67321, 2-18029, 800-1716N, FJ739
Frequently Asked Questions
Does the FJ739 injector for a BMW X5 fit the 2004-2006 V8 4.4L and the 2004-2010 V8 4.8L?
Yes. Standard Ignition FJ739 is listed for the 2004-2006 BMW X5 V8 4.4L and the 2004-2010 X5 V8 4.8L. For other BMW models, check the "Vehicles it fits" section.
Are the O-rings on this fuel injector made of Viton?
Yes. This fuel injector has high-temperature Viton® O-rings, which are intended to seal in extreme conditions and prevent fuel leaks.
What kind of electrical terminals does this fuel injector have?
It has two male blade terminals. The terminals are brass and corrosion-resistant for more consistent performance.
Could a rough idle on my V8 come from a bad fuel injector?
It can, since an injector that sprays poorly may contribute to a rough idle or misfire. A shop can test injector flow and spray, because that check needs the engine running.
Is the Standard Ignition FJ739 tested and calibrated before use?
Yes. Each Standard Ignition FJ739 is end-of-line tested and calibrated, and its design is validated through lab, climate and real-world vehicle testing in the USA.
