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Specifications
- MFR:Bosch
- FEATURE 1:100% New
- NOTE 1:BSS
- SPECS:12 Volt, B-Circuit
USED ON
- BMW (2006-2013) ** BMW - China (2007-2011) ** BMW - Europe (2005-2015)
Replaces
- BMW 12-31-561-924, 12-31-561-939, Bosch F 00M 346 014, F 00M 346 025, F 00M 346 032, F 00M 346 088
LESTER NUMBERS
- 11300
UNIT NUMBERS
- BMW 12-31-7-550-967, 12-31-7-550-967, 12-31-7-551-254, 12-31-7-551-254; Bosch 0 121 615 010, 0 121 615 110; Steyr 7550967
Vehicle Application
BMW Car
128i L6 3.0L 2996cc 2008-2013
323i L6 2.5L 2497cc 2007-2009
328i L6 3.0L 2996cc 2007-2013
328i xDrive L6 3.0L 2996cc 2009-2013
328xi L6 3.0L 2996cc 2007-2008
330i L6 3.0L 2996cc N52 2006
330xi L6 3.0L 2996cc N52 2006
528i L6 3.0L 2996cc 2008-2010
528i xDrive L6 3.0L 2996cc 2009-2010
528xi L6 3.0L 2996cc 2008
BMW Truck
X3 L6 3.0L 2996cc 2007-2010
BMW - China Car
523Li 2.5L, N52B25AF, Non-Turbo 2011
523Li 2.5L, N52B25BE, Non-Turbo 2008-2010
525Li 2.5L, N52B25BF, Non-Turbo 2007-2010
530Li 3.0L, N52B30BF, Non-Turbo 2008-2010
BMW - Europe Car
1 (E81) Eng.N52 B30 A, N52 B30 B, N52 B30 BF 130 i 190kW 2006-2011
1 (E81) Eng.N52 B30 A, N52 B30 B, N52 B30 BF 130 i 195kW 2006-2011
1 (E87) Eng.N52 B30 A, N52 B30 AF, N52 B30 B, N52 B30 BF 130 i 190kW 2005-2012
1 (E87) Eng.N52 B30 A, N52 B30 AF, N52 B30 B, N52 B30 BF 130 i 195kW 2005-2012
1 Convertible (E88) Eng.N51 B30 A 128 i 171kW 2008-2013
1 Convertible (E88) Eng.N52 B30 A 125 i 160kW 2008-2013
1 Coupe (E82) Eng.N52 B30 A 125 i 160kW 2008-2013
3 (E90) 325 i 155kW 2007-2011
3 (E90) Eng.N52 B25 A 323 i 140kW 2008-2011
3 (E90) Eng.N52 B25 A 325 i 155kW 2008-2011
3 (E90) Eng.N52 B25 A 325 i 160kW 2008-2011
3 (E90) Eng.N52 B25 A 325 xi 160kW 2008-2011
3 (E90) Eng.N52 B30 A, N53 B30 A 330 i 200kW 2007-2011
3 (E90) Eng.N53 B30 A 325 i xDrive 160kW 2008-2011
3 (E90) Eng.N53 B30 A 325 xi 160kW 2007-2008
3 (E90) Eng.N53 B30 A 330 i xDrive 200kW 2008-2011
3 (E90) Eng.N53 B30 A 330 xi 200kW 2007-2011
3 (E90) Eng.N53 B30, N53 B30 A 325 i 160kW 2007-2011
3 Convertible (E93) Eng.N51 B30 A, N53 B30 A 325 i 160kW 2007-2013
3 Convertible (E93) Eng.N52 B25 A 325 i 160kW 2008-2013
3 Convertible (E93) Eng.N52 B30 A, N53 B30 A 330 i 200kW 2007-2013
3 Convertible (E93) Eng.N53 B30 A 325 i 155kW 2006-2013
3 Coupe (E92) Eng.N51 B30 A, N53 B30 A 325 i 160kW 2005-2013
3 Coupe (E92) Eng.N51 B30 A, N53 B30 A 325 i xDrive 160kW 2008-2013
3 Coupe (E92) Eng.N52 B25 A, N52 B25 C 325 i 160kW 2008-2013
3 Coupe (E92) Eng.N52 B25 A, N52 B25 C 325 xi 160kW 2008-2013
3 Coupe (E92) Eng.N52 B30 A, N53 B30 A 330 i 200kW 2006-2010
3 Coupe (E92) Eng.N52 B30 A, N53 B30 A 330 xi 200kW 2006-2013
3 Coupe (E92) Eng.N53 B30 A 325 i 155kW 2005-2013
3 Coupe (E92) Eng.N53 B30 A 325 xi 160kW 2007-2013
3 Coupe (E92) Eng.N53 B30 A 330 i xDrive 200kW 2008-2013
3 Touring (E91) 323 i 140kW 2008
3 Touring (E91) Eng.N51 B30 A, N53 B30 A 325 i xDrive 160kW 2007-2012
3 Touring (E91) Eng.N52 B25 A, N52 B25 C 325 i 160kW 2008-2010
3 Touring (E91) Eng.N52 B25 A, N52 B25 C 325 xi 160kW 2008-2011
3 Touring (E91) Eng.N52 B30 A, N53 B30 A 330 i 200kW 2007-2012
3 Touring (E91) Eng.N53 B30 A 325 i 155kW 2007-2012
3 Touring (E91) Eng.N53 B30 A 325 i 160kW 2007-2012
3 Touring (E91) Eng.N53 B30 A 325 xi 160kW 2007-2012
3 Touring (E91) Eng.N53 B30 A 330 i xDrive 200kW 2007-2012
3 Touring (E91) Eng.N53 B30 A 330 xi 200kW 2007-2012
5 (E60) Eng.N52 B25 A, N53 B25 A 523 i 140kW 2007-2010
5 (E60) Eng.N52 B30 A, N53 B30 A 530 i 200kW 2006-2009
5 (E60) Eng.N52 B30 A, N53 B30 A 530 i xDrive 200kW 2007-2009
5 (E60) Eng.N52 B30 A, N53 B30 A 530 xi 200kW 2005-2007
5 (E60) Eng.N53 B30 A 525 i 160kW 2007-2010
5 (E60) Eng.N53 B30 A 525 i xDrive 160kW 2008-2010
5 (E60) Eng.N53 B30 A 525 xi 160kW 2008-2010
5 Touring (E61) Eng.N52 B25 A, N53 B25 A 523 i 140kW 2007-2010
5 Touring (E61) Eng.N52 B30 A, N53 B30 A 525 xi 160kW 2007-2010
5 Touring (E61) Eng.N52 B30 A, N53 B30 A 530 i 200kW 2007-2010
5 Touring (E61) Eng.N52 B30 A, N53 B30 A 530 i xDrive 200kW 2008-2010
5 Touring (E61) Eng.N52 B30 A, N53 B30 A 530 xi 200kW 2007-2010
5 Touring (E61) Eng.N53 B30 A 525 i 160kW 2007-2010
5 Touring (E61) Eng.N53 B30 A 525 i xDrive 160kW 2008-2010
6 (E63) Eng.N52 B30 A, N52 B30 BF 630 i 200kW 2007-2010
6 Convertible (E64) Eng.N52 B30 A, N52 B30 B, N52 B30 BF 630 i 200kW 2007-2010
X1 (E84) Eng.N52 B30 A xDrive 25 i 160kW 2010-2015
X1 (E84) Eng.N52 B30 A xDrive 28 i 190kW 2009-2015
X3 (E83) Eng.N52 B25 A 2.5 si 160kW 2006-2008
X3 (E83) Eng.N52 B25 A 2.5 si xDrive 155kW 2006-2008
X3 (E83) Eng.N52 B25 A xDrive 25 i 160kW 2008-2011
X3 (E83) Eng.N52 B30 A 3.0 si 200kW 2006-2008
X3 (E83) Eng.N52 B30 A xDrive 30 i 200kW 2008-2009
X5 (E70) Eng.N52 B30 A 3.0 si 200kW 2006-2008
X5 (E70) Eng.N52 B30 A xDrive 30 i 200kW 2008-2010
Features & Benefits
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Genuine OEM replacement part
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Manufactured to original factory specifications
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Regulates alternator output voltage
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Helps maintain proper battery charging
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Supports stable charging system performance
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Original fit, function, and electrical characteristics
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Ideal for alternator rebuilding and repair
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Engineered for long-term reliability
What Does a Voltage Regulator Do?
The voltage regulator controls the alternator's output by regulating current supplied to the rotor field winding. As electrical demand changes, the regulator continuously adjusts field current to maintain the proper charging voltage for the battery and the vehicle's electrical system.
A properly functioning voltage regulator helps prevent battery overcharging and undercharging while protecting sensitive electrical components from excessive voltage. Because charging system performance depends on the interaction between the regulator, rotor, stator, rectifier, and battery, replacing a faulty regulator is an important step in restoring alternator performance.
Common Signs Replacement Is Needed
Replace the voltage regulator if you notice:
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Battery overcharging
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Battery not charging
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Low charging voltage
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High charging voltage
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Battery warning light illuminated
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Intermittent charging problems
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Headlights that brighten or dim with engine speed
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Charging system failure during testing
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Voltage regulator failure discovered during alternator rebuilding
Installation Recommendations
Installation should be performed by a qualified technician or experienced alternator rebuilder. Before installing the new regulator, inspect the brushes, brush holder, slip rings, rotor, stator, rectifier, wiring, and electrical connections for signs of wear or damage.
Always verify connector configuration and mounting style before installation. After assembly, bench-test the alternator to confirm proper charging voltage and overall charging system performance.
While You're Rebuilding
Inspect other common wear components to help maximize charging system reliability:
Why Buy From RC Auto Electric?
RC Auto Electric specializes in genuine OEM and premium aftermarket alternator and starter rebuilding components for professional rebuilders, repair shops, automotive technicians, and DIY enthusiasts. Our extensive catalog includes thousands of electrical components backed by accurate cross-reference information to help simplify part identification and reduce ordering mistakes.
Disclaimer
Compatibility information is provided as a reference only. Manufacturing revisions, production changes, and previous rebuilding modifications may affect internal alternator components. Always compare the original OEM part number, connector configuration, mounting style, voltage specifications, cross-reference numbers, and product photographs before installation. If you are unsure about compatibility, contact RC Auto Electric before ordering.
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Frequently Asked Questions
How do I confirm compatibility? +
Compare part numbers, dimensions and photos with the original component.
Is this OEM or aftermarket? +
This listing is for an aftermarket replacement part.
What should I verify before ordering? +
Check all fitment and application details before purchase.
Is professional installation recommended? +
Professional installation is recommended.
Where can I find related parts? +
Browse related starter and alternator categories on RCAutoElectric.