- Fits 2010 BMW 550i
- Fits 2010 BMW 650i
- Fits 2010 BMW X5
- Fits 2009 BMW 550i
- Fits 2009 BMW 650i
- Fits 2009 BMW X5
- Fits 2008 BMW 550i
- Fits 2008 BMW 650i
- Fits 2008 BMW 750i
- Fits 2008 BMW 750Li
- Fits 2008 BMW X5
- Fits 2007 BMW 550i
- Fits 2007 BMW 650i
- Fits 2007 BMW 750i
- Fits 2007 BMW 750Li
- Fits 2007 BMW X5
- Fits 2006 BMW 550i
- Fits 2006 BMW 650i
- Fits 2006 BMW 750i
- Fits 2006 BMW 750Li
- Fits 2006 BMW X5
- Fits 2005 BMW 545i
- Fits 2005 BMW 645Ci
- Fits 2005 BMW 745i
- Fits 2005 BMW 745Li
- Fits 2005 BMW X5
- Fits 2004 BMW 545i
- Fits 2004 BMW 645Ci
- Fits 2004 BMW 745i
- Fits 2004 BMW 745Li
SIEMENS
Siemens OEM Fuel Injector for 2004-2010 BMW X5 545i 550i 650i 645Ci 750i 750Li V8 7525721
VERIFIED FITMENT
Part Numbers
7525721
852-12200, FJ739, 16589, 1550434
SIEMENS
Plug-and-play installation
SKU: 7525721 x1 reman plain main
OEM-Level Engineered Product
Built to Precision Standards • Multi-Stage Tested • Lifetime Warranty
- ✓Siemens Fuel Injector - Direct OEM Replacement
- ✓Precision-Engineered for Accurate Fuel Delivery
- ✓Compatible with Bmw Models
- ✓Direct Bolt-On Installation - No Modifications Required
- ✓Quality Tested - 100% Satisfaction Guaranteed
Part Numbers
7525721
852-12200, FJ739, 16589, 1550434
$39.99
Fitment
- 2004–2005BMW 545i4.4L
- 2006–2010BMW 550i4.8L
- 2004–2005BMW 645Ci4.4L
- 2006–2010BMW 650i4.8L
- 2004–2005BMW 745i4.4L
- 2004–2005BMW 745Li4.4L
- 2006–2008BMW 750i4.8L
- 2006–2008BMW 750Li4.8L
- 2004–2010BMW X54.8L
- 2004–2006BMW X54.4L
10 vehicle fitments
Part Numbers
Part Numbers
7525721
852-12200, FJ739, 16589, 1550434
Item Specifics
Item Specifics
| MPN | 7525721 |
| Injectors per set | 1 |
| Manufacturer Warranty | Lifetime |
| Manufacturer | Siemens Deka |
| Manufacturer Part Number | 7525721 |
| Brand | Siemens |
| Interchange Part Number | 852-12200, FJ739 |
| OE/OEM Part Number | 7525721 |
| Country/Region of Manufacture | United States |
| Other part numbers | 16589 1550434 |
| Fitment | 2004 2005 2006 2007 2008 2009 2010 BMW X5 4.8L V8, 2006 2007 2008 2009 2010 BMW 650i 4.8L V8, 2004 2005 BMW 645Ci 4.4L V8, 2006 2007 2008 2009 2010 BMW 550i 4.8L V8, 2004 2005 BMW 545i 4.4L V8, 2006 2007 2008 BMW 750Li 4.8L V8, 2006 2007 2008 BMW 750i 4.8L V8, 2004 2005 BMW 745Li 4.4L V8, 2004 2005 BMW 745i 4.4L V8, 2004 2005 2006 BMW X5 4.4L V8 |
Description
Description
Professionally Remanufactured & Fully Validated
This fuel injector has been professionally remanufactured to restore proper fuel delivery and consistent engine operation.
Each unit is fully disassembled and undergoes multi-stage ultrasonic and chemical cleaning to remove deposits and contaminants from critical internal areas.
Internal components are carefully inspected, and worn elements are replaced with OEM-grade materials where required to restore reliability and function.
After reassembly, every injector is recalibrated and validated through a comprehensive testing process, including high-pressure leak testing, flow rate matching, spray pattern restoration, and electrical response verification.
Final testing under simulated operating conditions is performed to support stable fuel delivery, efficient combustion, and long-term dependability.
Direct Fit & Plug-and-Play
No tuning or modification is required. Designed to match OEM specifications for seamless installation and dependable operation.
Please confirm compatibility using the fitment section above before purchase.
Warranty
Warranty
Lifetime Warranty
All AURUS fuel injectors are backed by a Lifetime Warranty. If any injector fails under normal use, we will replace it free of charge — no questions asked.
What's Covered
Manufacturing defects, electrical failure, flow performance degradation, and leaks under normal operating conditions.
Not Covered
Physical damage, misuse, improper installation, or use with incompatible vehicles not listed in fitment.
Shipping & Returns
Shipping & Returns
Free Same Day or Next Business Day Shipping
Orders placed before 3:00 PM PST ship the same business day.
USA Standard Delivery
3–7 business days
USA Priority Shipping
2–3 business days
USA Overnight
Next business day
30-Day Hassle-Free Returns or Replacements
Not satisfied? Return any unused item within 30 days for a full refund or replacement. Return shipping is on us for defective items.
100% Quality Assurance
Each Unit Tested Individually
Quality Assurance
Engineered for Exact Tolerances
OEM-level precision manufacturing and quality assurance
Remanufacturing
- OEM core inspection
- Full disassembly & cleaning
- Component replacement
- New OEM seals, O-rings, filters
- Precision reassembly
Testing
- Multi-stage flow testing
- Spray pattern validation
- Leak testing
- Electrical response testing
Technical Standards
- OEM specifications compliance
- Flow-matched calibration
- Pressure tolerance validation
- Electrical response testing
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Common symptoms that point to a failing fuel injector. Read the diagnostic guides before you buy.
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