Name: Alternator RIDEX 4G0912 OE Ref 12317525376
Brand: RIDEX
SKU: 4G0912
Price: 337 GBP
Availability: InStock

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Alternator RIDEX 4G0912 OE Ref 12317525376 RIDEX

Key Specification:

Alternator Charge Current [A]: 170
Belt Pulley [mm]: 49
Belt Pulley [mm]: 50.3
Connector Shape: D Shape
EAN: 4064138061391

See Full Specification

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£ 337

£ 280.83 excl. VAT

In Stock

SKU:	RIDEX 4G0912
Brand	RIDEX

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Specification
Description
OEM Numbers
Compatibilities
Reviews

Alternator Charge Current [A]

170

Belt Pulley [mm]

50.3

Connector Shape

D Shape

EAN

4064138061391

Number of mounting bores

Number of ribs

OEM Reference number

12317521178

Packing Unit

Piece

Plug Type ID

B+(M8)/COM-D

Plug Type ID

PLUG184

Pulleys

with freewheel belt pulley

Rotation Direction

Clockwise rotation

Voltage [V]

Alternator OE Ref 12317525376 – RIDEX – OEM 12317521178

This Alternator OE Ref 12317525376 is supplied by RIDEX as a replacement for OEM reference 12317521178. It is intended for use in selected BMW vehicles and designed to meet original equipment fit and functional requirements.

The part is identified by manufacturer reference 4G0912 and EAN 4064138061391, allowing accurate identification and compatibility verification prior to installation. It is suitable for replacing worn, damaged, or non-functioning components where dependable operation is required.

Technical details are not specified.

Vehicle Compatibility

Compatible with selected BMW models. Detailed compatibility information is available in the Compatibility section of this page.

To confirm correct fitment, please verify the OEM reference number or use the vehicle registration lookup tool before ordering.

If this part is not suitable for your vehicle, browse alternative options in our Electrics category.

Reference number(s) comparable with the original spare part number

BMW 12317521178 BMW 12317525376 BMW 12317550968 BMW 12317551256 BMW 12317555926 BMW 7521178 BMW 7525376 BMW 7550968 BMW 7551256 FIAT 7555926 BMW (BRILLIANCE) 12317550968 BMW (BRILLIANCE) 12317551256 BMW (BRILLIANCE) 12317555926 BMW (BRILLIANCE) 7550968

OE reference number(s) comparable with the original spare part number

BMW

BMW 1 (E81) From 09/2006 to 09/2012

130 i Rear-Wheel Drive 09/2006-12/2011, 195 kw, 2996 ccm, 265 PS, Hatchback, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 B

130 i Rear-Wheel Drive 09/2006-12/2011, 190 kw, 2996 ccm, 258 PS, Hatchback, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 B

BMW 1 (E87) From 02/2003 to 01/2013

130 i Rear-Wheel Drive 09/2005-02/2007, 195 kw, 2996 ccm, 265 PS, Hatchback, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 AF

130 i Rear-Wheel Drive 03/2007-06/2011, 190 kw, 2996 ccm, 258 PS, Hatchback, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 AF, N52 B30 B

BMW 1 Convertible (E88) From 12/2007 to 12/2013

125 i Rear-Wheel Drive 12/2007-10/2013, 160 kw, 2996 ccm, 218 PS, Convertible, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 B

BMW 1 Coupe (E82) From 10/2006 to 10/2013

125 i Rear-Wheel Drive 03/2008-10/2013, 160 kw, 2996 ccm, 218 PS, Coupe, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 B

BMW 3 (E90) From 02/2004 to 02/2012

330 xi 4WD 09/2005-08/2007, 190 kw, 2996 ccm, 258 PS, Saloon, Petrol , ENG: N52 B30 A

330 i Rear-Wheel Drive 09/2007-10/2011, 200 kw, 2996 ccm, 272 PS, Saloon, Petrol , ENG: N53 B30 A

330 i Rear-Wheel Drive 12/2004-10/2011, 190 kw, 2996 ccm, 258 PS, Saloon, Petrol , ENG: N52 B30 BF, N52 B30 A

325 i Rear-Wheel Drive 03/2007-12/2011, 160 kw, 2996 ccm, 218 PS, Saloon, Petrol , ENG: N53 B30 A

323 i Rear-Wheel Drive 03/2007-12/2011, 140 kw, 2497 ccm, 190 PS, Saloon, Petrol , ENG: N52 B25 A, N52 B25 BF

323 i Rear-Wheel Drive 09/2005-02/2007, 130 kw, 2497 ccm, 177 PS, Saloon, Petrol , ENG: N52 B25 A, N52 B25 B, N52 B25 BF, N52 B25 BE

320 d Rear-Wheel Drive 12/2004-09/2007, 110 kw, 1995 ccm, 150 PS, Saloon, Diesel , ENG: M47 D20 (204D4)

318 d Rear-Wheel Drive 03/2005-08/2007, 90 kw, 1995 ccm, 122 PS, Saloon, Diesel , ENG: M47 D20 (204D4)

325 i xDrive 4WD 09/2008-10/2011, 160 kw, 2996 ccm, 218 PS, Saloon, Petrol , ENG: N53 B30 A

330 xi 4WD 09/2007-08/2008, 200 kw, 2996 ccm, 272 PS, Saloon, Petrol , ENG: N53 B30 A

320 d Rear-Wheel Drive 12/2004-10/2011, 120 kw, 1995 ccm, 163 PS, Saloon, Diesel , ENG: M47 D20 (204D4), N47 D20 A, N47 D20 C

325 xi 4WD 09/2005-08/2008, 160 kw, 2497 ccm, 218 PS, Saloon, Petrol , ENG: N52 B25 A

325 xi 4WD 09/2007-08/2008, 160 kw, 2996 ccm, 218 PS, Saloon, Petrol , ENG: N53 B30 A

325 i Rear-Wheel Drive 12/2004-12/2011, 160 kw, 2497 ccm, 218 PS, Saloon, Petrol , ENG: N52 B25 A, N52 B25 B, N52 B25 BF

325 i Rear-Wheel Drive 01/2006-12/2011, 155 kw, 2497 ccm, 211 PS, Saloon, Petrol , ENG: N52 B25 A

330 i xDrive 4WD 09/2008-10/2011, 200 kw, 2996 ccm, 272 PS, Saloon, Petrol , ENG: N53 B30 A

BMW 3 Convertible (E93) From 05/2006 to 12/2013

325 i Rear-Wheel Drive 03/2007-12/2013, 160 kw, 2996 ccm, 218 PS, Convertible, Petrol , ENG: N53 B30 A

330 i Rear-Wheel Drive 03/2007-10/2013, 200 kw, 2996 ccm, 272 PS, Convertible, Petrol , ENG: N53 B30 A

330 i Rear-Wheel Drive 03/2010-10/2013, 190 kw, 2996 ccm, 258 PS, Convertible, Petrol , ENG: N52 B30 A, N52 B30 AF

325 i Rear-Wheel Drive 12/2006-02/2010, 160 kw, 2497 ccm, 218 PS, Convertible, Petrol , ENG: N52 B25 A

BMW 3 Coupe (E92) From 01/2005 to 12/2013

325 xi 4WD 09/2006-02/2010, 160 kw, 2497 ccm, 218 PS, Coupe, Petrol , ENG: N52 B25 A

325 i xDrive 4WD 09/2008-12/2013, 160 kw, 2996 ccm, 218 PS, Coupe, Petrol , ENG: N53 B30 A

325 i Rear-Wheel Drive 06/2006-02/2010, 160 kw, 2497 ccm, 218 PS, Coupe, Petrol , ENG: N52 B25 A, N52 B25 AF, N52 B25 BF

325 xi 4WD 09/2007-08/2008, 160 kw, 2996 ccm, 218 PS, Coupe, Petrol , ENG: N53 B30 A

330 i Rear-Wheel Drive 03/2010-06/2013, 190 kw, 2996 ccm, 258 PS, Coupe, Petrol , ENG: N52 B30 A

330 xi 4WD 09/2006-08/2007, 200 kw, 2996 ccm, 272 PS, Coupe, Petrol , ENG: N52 B30 A

330 i xDrive 4WD 03/2010-06/2013, 200 kw, 2996 ccm, 272 PS, Coupe, Petrol , ENG: N53 B30 A

330 i Rear-Wheel Drive 09/2006-02/2010, 200 kw, 2996 ccm, 272 PS, Coupe, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 AF

325 i Rear-Wheel Drive 09/2007-06/2013, 160 kw, 2996 ccm, 218 PS, Coupe, Petrol , ENG: N53 B30 A

BMW 3 Touring (E91) From 12/2004 to 12/2012

330 i Rear-Wheel Drive 08/2005-08/2007, 190 kw, 2996 ccm, 258 PS, Estate, Petrol , ENG: N52 B30 A

330 i Rear-Wheel Drive 09/2007-06/2012, 200 kw, 2996 ccm, 272 PS, Estate, Petrol , ENG: N53 B30 A

330 xi 4WD 09/2005-08/2007, 190 kw, 2996 ccm, 258 PS, Estate, Petrol , ENG: N52 B30 A

325 i Rear-Wheel Drive 12/2004-12/2010, 155 kw, 2497 ccm, 211 PS, Estate, Petrol , ENG: N52 B25 A, N52 B25 AF, N52 B25 B, N52 B25 BF

325 i xDrive 4WD 09/2008-06/2012, 160 kw, 2996 ccm, 218 PS, Estate, Petrol , ENG: N53 B30 A

325 xi 4WD 09/2007-08/2008, 160 kw, 2996 ccm, 218 PS, Estate, Petrol , ENG: N53 B30 A

318 d Rear-Wheel Drive 09/2005-08/2007, 90 kw, 1995 ccm, 122 PS, Estate, Diesel , ENG: M47 D20 (204D4)

330 xi 4WD 09/2007-06/2012, 200 kw, 2996 ccm, 272 PS, Estate, Petrol , ENG: N53 B30 A

325 i Rear-Wheel Drive 12/2004-08/2008, 160 kw, 2497 ccm, 218 PS, Estate, Petrol , ENG: N52 B25 A

325 xi 4WD 08/2005-08/2008, 160 kw, 2497 ccm, 218 PS, Estate, Petrol , ENG: N52 B25 A

323 i Rear-Wheel Drive 04/2006-06/2007, 130 kw, 2497 ccm, 177 PS, Estate, Petrol , ENG: N52 B25 A

330 i xDrive 4WD 09/2007-06/2012, 200 kw, 2996 ccm, 272 PS, Estate, Petrol , ENG: N53 B30 A

325 i Rear-Wheel Drive 09/2007-06/2012, 160 kw, 2996 ccm, 218 PS, Estate, Petrol , ENG: N53 B30 A

BMW 5 (E60) From 12/2001 to 03/2010

530 xi 4WD 02/2007-08/2008, 200 kw, 2996 ccm, 272 PS, Saloon, Petrol , ENG: N53 B30 A

530 i Rear-Wheel Drive 03/2007-12/2009, 200 kw, 2996 ccm, 272 PS, Saloon, Petrol , ENG: N52 B30 BF, N52 B30 A

523 i Rear-Wheel Drive 03/2007-12/2009, 140 kw, 2497 ccm, 190 PS, Saloon, Petrol , ENG: N52 B25 A, N52 B25 BE

530 i xDrive 4WD 09/2008-12/2009, 200 kw, 2996 ccm, 272 PS, Saloon, Petrol , ENG: N53 B30 A

525 i Rear-Wheel Drive 01/2007-03/2010, 160 kw, 2996 ccm, 218 PS, Saloon, Petrol , ENG: N53 B30 A

530 xi 4WD 09/2004-02/2007, 190 kw, 2996 ccm, 258 PS, Saloon, Petrol , ENG: N52 B30 A

530 i Rear-Wheel Drive 03/2005-03/2010, 187 kw, 2996 ccm, 254 PS, Saloon, Petrol , ENG: N52 B30 A

530 i Rear-Wheel Drive 03/2007-12/2009, 200 kw, 2996 ccm, 272 PS, Saloon, Petrol , ENG: N53 B30 A

523 i Rear-Wheel Drive 03/2007-12/2009, 140 kw, 2497 ccm, 190 PS, Saloon, Petrol , ENG: N53 B25 A

525 xi 4WD 03/2007-12/2009, 160 kw, 2996 ccm, 218 PS, Saloon, Petrol , ENG: N53 B30 A

525 i xDrive 4WD 09/2008-03/2010, 160 kw, 2996 ccm, 218 PS, Saloon, Petrol , ENG: N53 B30 A

525 xi 4WD 04/2005-02/2007, 160 kw, 2497 ccm, 218 PS, Saloon, Petrol , ENG: N52 B25 A

525 i Rear-Wheel Drive 03/2005-12/2009, 160 kw, 2497 ccm, 218 PS, Saloon, Petrol , ENG: N52 B25 A, N52 B25 B, N52 B25 BF

523 i Rear-Wheel Drive 10/2004-02/2007, 130 kw, 2497 ccm, 177 PS, Saloon, Petrol , ENG: N52 B25 A, N52 B25 B, N52 B25 BE

525 i Rear-Wheel Drive 07/2005-03/2010, 155 kw, 2497 ccm, 211 PS, Saloon, Petrol , ENG: N52 B25 A

530 i Rear-Wheel Drive 03/2005-03/2007, 190 kw, 2996 ccm, 258 PS, Saloon, Petrol , ENG: N52 B30 BF, N52 B30 A

BMW 5 Touring (E61) From 03/2004 to 12/2010

530 i xDrive 4WD 09/2008-05/2010, 200 kw, 2996 ccm, 272 PS, Estate, Petrol , ENG: N53 B30 A

530 xi 4WD 04/2005-02/2007, 190 kw, 2996 ccm, 258 PS, Estate, Petrol , ENG: N52 B30 A

525 i Rear-Wheel Drive 03/2005-05/2010, 160 kw, 2497 ccm, 218 PS, Estate, Petrol , ENG: N52 B25 A, N52 B25 B, N52 B25 BF

530 xi 4WD 09/2006-09/2008, 200 kw, 2996 ccm, 272 PS, Estate, Petrol , ENG: N53 B30 A

523 i Rear-Wheel Drive 03/2007-01/2010, 140 kw, 2497 ccm, 190 PS, Estate, Petrol , ENG: N52 B25 A

523 i Rear-Wheel Drive 10/2004-02/2007, 130 kw, 2497 ccm, 177 PS, Estate, Petrol , ENG: N52 B25 A, N52 B25 B, N52 B25 BE

530 i Rear-Wheel Drive 09/2004-02/2007, 190 kw, 2996 ccm, 258 PS, Estate, Petrol , ENG: N52 B30 BF, N52 B30 A

525 i Rear-Wheel Drive 01/2007-12/2010, 160 kw, 2996 ccm, 218 PS, Estate, Petrol , ENG: N53 B30 A

530 i Rear-Wheel Drive 01/2007-12/2010, 200 kw, 2996 ccm, 272 PS, Estate, Petrol , ENG: N53 B30 A

530 i Rear-Wheel Drive 09/2006-03/2010, 200 kw, 2996 ccm, 272 PS, Estate, Petrol , ENG: N52 B30 A

525 i xDrive 4WD 09/2008-12/2010, 160 kw, 2996 ccm, 218 PS, Estate, Petrol , ENG: N53 B30 A

525 xi 4WD 07/2005-12/2010, 160 kw, 2497 ccm, 218 PS, Estate, Petrol , ENG: N52 B25 A

525 i Rear-Wheel Drive 03/2005-05/2010, 155 kw, 2497 ccm, 211 PS, Estate, Petrol , ENG: N52 B25 A

525 xi 4WD 01/2007-12/2010, 160 kw, 2996 ccm, 218 PS, Estate, Petrol , ENG: N53 B30 A

530 xi 4WD 03/2007-05/2010, 200 kw, 2996 ccm, 272 PS, Estate, Petrol , ENG: N52 B30 A

BMW 6 (E63) From 09/2003 to 12/2010

630 i Rear-Wheel Drive 09/2004-08/2007, 190 kw, 2996 ccm, 258 PS, Coupe, Petrol , ENG: N52 B30 BF, N52 B30 A

630 i Rear-Wheel Drive 09/2007-08/2010, 200 kw, 2996 ccm, 272 PS, Coupe, Petrol , ENG: N53 B30 A

630 i Rear-Wheel Drive 09/2007-08/2010, 200 kw, 2996 ccm, 272 PS, Coupe, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 B

BMW 6 Convertible (E64) From 03/2004 to 12/2010

630 i Rear-Wheel Drive 09/2004-08/2007, 190 kw, 2996 ccm, 258 PS, Convertible, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 B

630 i Rear-Wheel Drive 09/2007-08/2010, 200 kw, 2996 ccm, 272 PS, Convertible, Petrol , ENG: N53 B30 A

630 i Rear-Wheel Drive 09/2007-08/2010, 200 kw, 2996 ccm, 272 PS, Convertible, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 B

BMW 7 (E65, E66, E67) From 07/2001 to 12/2009

730 i, Li Rear-Wheel Drive 03/2005-08/2008, 190 kw, 2996 ccm, 258 PS, Saloon, Petrol , ENG: N52 B30 BF, N52 B30 A

BMW X1 (E84) From 03/2009 to 06/2015

xDrive 25 i 4WD 03/2010-08/2011, 160 kw, 2996 ccm, 218 PS, SUV, Petrol , ENG: N52 B30 A

xDrive 28 i 4WD 09/2009-08/2011, 190 kw, 2996 ccm, 258 PS, SUV, Petrol , ENG: N52 B30 A

BMW X3 (E83) From 01/2003 to 12/2011

xDrive 30 i 4WD 09/2008-08/2010, 200 kw, 2996 ccm, 272 PS, SUV, Petrol , ENG: N52 B30 BF, N52 B30 A

3.0 si 4WD 08/2006-08/2008, 200 kw, 2996 ccm, 272 PS, SUV, Petrol , ENG: N52 B30 BF, N52 B30 A

xDrive 25 i 4WD 09/2008-08/2010, 160 kw, 2497 ccm, 218 PS, SUV, Petrol , ENG: N52 B25 A, N52 B25 AF, N52 B25 BF

2.5 si 4WD 08/2006-08/2008, 160 kw, 2497 ccm, 218 PS, SUV, Petrol , ENG: N52 B25 A, N52 B25 AF, N52 B25 BF

BMW X5 (E70) From 02/2006 to 07/2013

xDrive 30 i 4WD 10/2008-03/2010, 200 kw, 2996 ccm, 272 PS, SUV, Petrol , ENG: N52 B30 A

3.0 si 4WD 10/2006-09/2008, 200 kw, 2996 ccm, 272 PS, SUV, Petrol , ENG: N52 B30 BF, N52 B30 A, N52 B30 AF

Berry
12 Nov, 2025
elderly car so really pleased that the part could be supplied :-) Correct part arrived swiftly - excellent - thank you
Edward & Susan
20 OCT, 2025
These guys were real helpful when I was looking for an EGR valve. Great communications and fast delivery, the valve did exactly as It was meant to do and it was a lot cheaper than everywhere else I looked. I'll be using eAuto Parts again. Top banana.
Charlie
27 AUG, 2025
eAuto Parts made me happy because it only took 2 minutes to order the part and at a very good price, also very quick delivery, will definitely deal with them again.
Adam Taylor
12 May, 2025
Quick enquiry response, easy buying and quick delivery. Quality of goods was good and fitted with no problem (Suzuki bonnet hinges.) recommended.
Helena Garcia
2 January, 2025
The correct part was rapidly identified and located, and was despatched promply to my chosen repairer in time for the work to be done on schedule. Very pleased with the service and will be using eAuto Parts again.