Alternator7521178

BMW OE number, as listed in aftermarket supplier catalogues. Compare listings for this exact number, then confirm the part number and vehicle fitment before ordering.

Lowest price

€22.00

plus €20.40 shipping to Germany, on Ovoko

Compare 70 listings

Compare offers

What each marketplace’s search lists for this number, lowest price first, Ovoko last. Listings can include other parts that name it.

AUTODOC

Prices not checked

New

View on AUTODOC

Ovoko

70 listings

Used

Checked 2026-10-20 00:46 UTC

€22.00 – €341.51Cheapest listing: + €20.40 shipping to Germanyestimated delivery in 3–7 daysView on Ovoko

We may earn a commission through partner links. How we stay useful

Aftermarket part numbers

Supplier articles whose catalogue lists 7521178. Check the supplier’s own restrictions before ordering. A fitment condition under a part number is one its supplier names for at least one of the vehicles the part is listed for, not for all of them: a vehicle’s page shows which apply to it.

BOSCH: 0986048820Length (unpacked): 187 mm Direction of rotation: Clockwise direction of rotation Rated voltage: 14 V Rated current: 180 A Swivel arm hole: 8 Pulley diameter: 49 mm Number of grooves: 6 Pulley distance: 29,5 mm Supporting arm hole: 8,0 / 10,0 Position of supporting arm hole: right Type: Compact Fastening type: Direct mounting Vacuum pump: excl. vacuum pump Belt pulley: with free-wheeling pulley
+11 moreShow fewer
CONTINENTAL CTAM: AP9021Weight: 0.357 kg Packaging width: 9 cm Packaging length: 11 cm Packaging height: 6 cm Supplementary Article/Supplementary Info 2: Requires special tools for mounting Width: 39 mm Diameter 1/Diameter 2: 55,4/17,0 mm
+4 moreShow fewer
Fitment conditions:for manufacturer number: F-230329.XX, F-238005.XX Manufacturer Restriction: BOS, VAL Construction Year from: 09.2001, 01.2003, 11.2005, 09.2006, 03.2007 Construction Year to: 12.2004, 12.2006, 02.2007, 06.2007, 09.2008 Engine Code: N52 B25 A usable for vehicles with alternator charging current [A]: 110, 120, 90 Vehicle Equipment: for vehicles without seat heating
+4 moreShow fewer
DOLZ: AFC050Number of ribs: 6 Diameter: 49 mm Inner Diameter: 17 mm Width: 38.3 mm
+1 moreShow fewer
Fitment conditions:Construction Year to: 12.2006, 02.2007, 09.2008, 03.2010 Construction Year from: 09.2001 Vehicle type: 325i Touring
GGT: ARL050Number of ribs: 6 Diameter: 49 mm Inner Diameter: 17 mm Width: 38.3 mm
+1 moreShow fewer
Fitment conditions:Construction Year to: 12.2006, 02.2007, 09.2008, 03.2010 Construction Year from: 09.2001 Vehicle type: 325i Touring
HELLA: 8EL 011 712-031Alternator Charging Current: 180 A Pulleys: with freewheel belt pulley Manufacturer Restriction: Valeo Number of grooves: 6 Belt Pulley Ø: 49 mm Voltage: 12 V
+3 moreShow fewer
Fitment conditions:Construction Year from: 09.2005, 10.2005, 11.2005, 01.2007, 03.2007, 09.2008 Engine Code: M47 D20 (204D4), N52 B25 A, N52 B30 A, N52 B30 B, N52 B30 BF Construction Year to: 02.2007, 06.2007, 09.2008, 03.2010 Climate Zones: for hot climate zones for facelift not for facelift
+3 moreShow fewer
The NewLine: RE73752NVoltage: 12 V Manufacturer Restriction: Bosch Alternator Charging Current: 180 A Belt Pulley Ø: 49 mm Pulleys: with freewheel belt pulley Number of ribs: 6 Plug Type ID: PL86
+4 moreShow fewer
Fitment conditions:usable for vehicles with alternator charging current [A]: 155, 180 Construction Year to: 03.2007
VALEO: 437557Voltage: 14 V Alternator Charging Current: 180 A Fastening Type: Direct fastening Position/Degree: L 0 ° Rotation Direction: Clockwise rotation Pulleys: with freewheel belt pulley Number of ribs: 6 Belt Pulley Ø: 50 mm Clamp: B+ Weight: 7.815 kg
+7 moreShow fewer
Fitment conditions:Engine Code: M47 D20 (204D4), N52 B25 A, N52 B30 A, N52 B30 B, N52 B30 BF Climate Zones: for hot climate zones Construction Year from: 09.2008439560Voltage: 14 V Alternator Charging Current: 180 A Fastening Type: Four-point attachment Rotation Direction: Clockwise rotation Pulleys: with freewheel belt pulley Number of ribs: 6 Belt Pulley Ø: 50 mm Clamp: B+(M8) Weight: 8.06 kg
+6 moreShow fewer
Fitment conditions:Engine Code: M47 D20 (204D4), N52 B25 A, N52 B30 A, N52 B30 B, N52 B30 BF Climate Zones: for hot climate zones Construction Year from: 09.2008595203Outer Diameter: 50.3 mm Thread Size: M16 Number of grooves: 6 Distance to first groove: 12 mm Bore Diameter: 17 mm Weight: 0.41 kg
+3 moreShow fewer
Fitment conditions:Manufacturer Restriction: BOSCH, VALEO Construction Year from: 11.1989, 03.1998, 03.1999, 07.1999, 07.2000, 08.2000, 05.2001, 09.2001, 05.2002, 09.2006, 09.2008 Construction Year to: 02.2000, 12.2000, 09.2001, 12.2004, 02.2005, 08.2005, 05.2006, 07.2006, 08.2006 Climate Zones: for hot climate zones Vehicle Equipment: for vehicles without seat heating
+2 moreShow fewer
replaced by VALEO 588055
WALKER: WAL01045Voltage: 14 V Alternator Charging Current: 170 A Number of ribs: 6 Pulleys: with freewheel belt pulley Belt Pulley Ø: 49 mm Plug Type ID: 0241 Vehicle Electrical System Design: for vehicles with 12-volt electrical system Clamp: M8 B+;COM/BSS Bore Diameter 1: 8 mm Net weight: 7.3 kg
+7 moreShow fewer
Fitment conditions:Construction Year to: 09.2006, 12.2006, 06.2007, 08.2007, 09.2007, 09.2008, 07.2009 Engine Code: N52 B25 A, N52 B25 BE, N52 B30 A Construction Year from: 03.2005, 11.2005, 09.2008

Vehicle fitment

Engine code and production dates decide fitment. Model name and year alone don’t.

159 vehicles in 33 model series, inferred

Aftermarket parts that list 7521178 fit these vehicles according to their supplier catalogues. That does not prove 7521178 itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

Alpina

3 model series · 3 vehicles

Alpina model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
D3 (E90) 2005–20111 vehicle	11/2009 – 12/2011	N47D20D	7656 / AAH
D3 (E92)1 vehicle	11/2009 – 12/2012	N47D20D	7656 / AAJ
D3 touring (E91) 2005–20131 vehicle	11/2009 – 05/2013	N47D20D	7656 / AAI

BMW

30 model series · 156 vehicles

BMW model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
1 (E81)7 vehicles1 of them: some versions only	08/2004 – 09/2012	N43 B20A, N45 B16A, N46 B20B, N46 B20B.., N46 B20C, N46N, N52 B30A, N52 B30B	0005 / AAK, ACU, ACW, AJM, AJN, AOH, AOR, AQJ, ARC, ARE, ARF, ARH, ARK
1 (E82)1 vehicle	09/2009 – 12/2014	N46 B20B.., N46 B20C..	0005 / AQG
1 (E87) 2004–20114 vehicles	06/2004 – 03/2007	N45 B16A, N46 B20B, N46 B20B.., N46 B20C, N52 B30A, N52 B30B	0005 / 163, 165, 166, 843, AAH, AAJ, AAK, AAM, ACR, ACS, ACU, ACW, ART
1 (E87) LCI5 vehicles1 of them: some versions only	03/2007 – 09/2012	N43 B20A, N45 B16A, N46 B20, N46 B20B, N46 B20B.., N46 B20C, N52 B30A, N52 B30B	0005 / 163, AAM, ACW, AJM, AJN, AOH, AOR, AQK, ART, ARV, ARW, ARY, ASB
1 (E88)2 vehicles	03/2007 – 12/2013	N46 B20B, N46 B20B.., N46 B20C..	0005 / AMU, ANA, AQM, AQQ
3 (E30)1 vehicle	09/1989 – 08/1991	18 4S 1, M42	0005 / 487
3 (E36)4 vehicles4 of them: some versions only	01/1991 – 12/1999	M42, M44	0005 / 518, 535, 549, 566, 576, 582
3 (E46)50 vehicles1 of them: some versions only	12/1997 – 02/2007	19 4E 1, M43, M52, M54, N40, N42, N45, N46, N46 B20A, N46 B20C	0005 / 622, 623, 625, 626, 628, 637, 638, 639, 642, 648, 653, 655, 657, 658, 660, 675, 676, 680, 681, 682, 683, 684, 685, 698, 699, 700, 701, 703, 704, 705, 706, 707, 708, 709, 710, 711, 716, 717, 721, 727, 728, 729, 730, 731, 733, 734, 735, 736, 741, 742, 743, 754, 755, 831, 832, AEG, AEH, AEI, AEJ, AEL, AEO, AEQ, AER, AES, AEU, AEW, AEX
3 (E90) 2004–201117 vehicles3 of them: some versions only	06/2004 – 12/2011	20 4D 4, M47N2, N45 B16A, N45 B20A, N46 B20B.., N46 B20C, N46B20CC, N46 B20E, N47, N51 B30A, N52, N52 B25A, N52 B25B, N52 B25BE, N52 B25BF, N52 B30A, N52 B30B, N53, N53 B30A	0005 / 820, 821, 822, 823, 830, 846, 855, 871, 872, 873, 874, 880, 881, ABY, ADG, ADI, ADK, ADL, ADN, ADQ, ADS, ADT, ADU, ADV, AEB, AEF, AJU, ALA, ALB, ALE, ALV, AMF, AVV, AVY, AWB, AWF, AWI, AWK, AWM, AWN, AWR, AWT
3 (E90) LCI6 vehicles	09/2008 – 12/2013	20 4D 4, N45 B16A, N47 D20C, N51 B30A, N52 B25A, N52 B30A, N52 B30B, N52 KB25, N53	0005 / 821, 823, 871, ADI, ADS, ADT, AJU, AJW, AVV, AWB, AWG, AWM, AWN
3 (E91) 2004–201213 vehicles2 of them: some versions only	12/2004 – 08/2008	20 4D 4, M47N2, N46 B20B, N46 B20B.., N46 B20C, N52, N52 B25A, N52 B25B, N52 B25BF, N52 B30A, N53	0005 / 849, 850, 854, 876, 877, 883, 884, ABX, ABZ, ACA, ADJ, ADO, ADP, ADW, ADX, ADY, AEA, AEE, AJV, AJX, ALO, ALP, ALX, AXE, AXL, AXM, AXN, AXP, AXQ, AXV, BDT
3 (E91) LCI4 vehicles	03/2007 – 08/2012	20 4D 4, N46 B20B.., N46 B20C, N47 D20C, N52 B25A, N52 B25B, N52 B25BF, N52 B30A, N53, N53 B30A	0005 / 849, 850, 877, ADO, ADP, ADX, AJX, ALO, AXE, AXM, AXN, AXQ, BDT
3 (E92) 2006–20132 vehicles1 of them: some versions only	06/2006 – 02/2010	N46 B20B, N52, N53 B30A	0005 / 895, AFM, AJS, AKU, AVF, AVH
3 (E92) LCI1 vehicle	03/2010 – 12/2013	N53	0005 / AVQ
3 (E93) 2006–20132 vehicles1 of them: some versions only	12/2006 – 12/2013	N46 B20B, N52 B25A, N52 B25BF, N53 B30A	0005 / AHI, AIX, AJR, AUK, AUP, AUR
5 (E60) 2003–6 vehicles	09/2004 – 12/2009	N52, N52 B25A, N52 B25B, N52 B25BE, N52 B25BF, N52 B30A, N52 B30B, N52 B30BF	0005 / 174, 176, 834, 835, 836, 837, ABC, ABD, ABJ, ABP, ABV, AHD, AHE, AIA
5 (E60) LCI6 vehicles2 of them: some versions only	01/2007 – 03/2010	N46 B20B, N46 B20CD, N52 B25A, N52 B25BE, N52 B30A, N52 B30B, N53, N53 B25A, N53 B30A	0005 / AHZ, AIA, AIB, AIL, AIO, AIP, AMC
5 (E61) 2003–20106 vehicles	09/2004 – 05/2010	N52, N52 B25A, N52 B25B, N52 B30A, N52 B30B	0005 / 175, 177, 838, 839, 840, 841, AAW, AAZ, ABA, ABK, AHB, AHC
5 (E61) LCI3 vehicles1 of them: some versions only	01/2007 – 12/2010	N52, N52 B30A, N52 B30B, N53, N53 B25A	0005 / AIF, AIH, AIS
6 (E63) 2003–20111 vehicle	09/2004 – 08/2007	N52 B30A, N52 B30B, N52 B30BF	0005 / 811, AGZ
6 (E63) LCI1 vehicle	09/2007 – 08/2010	N52, N53 B30A	0005 / AKF
6 (E64) 2004–20071 vehicle	09/2004 – 08/2007	N52 B30A, N52 B30B	0005 / 812, AGY
6 (E64) LCI1 vehicle	09/2007 – 08/2010	N52, N53 B30A	0005 / AKG
7 (E65)2 vehicles	03/2005 – 08/2008	44 8D 1, M67N, N52 B30A, N52 B30B	0005 / 825, 886, ACJ, ACM
7 (E66)1 vehicle	03/2005 – 08/2008	N52 B30A, N52 B30B	0005 / 825, ACM
X1 (E84)2 vehicles	03/2010 – 06/2015	N46, N46N	0005 / AYQ, AYR
X3 (E83) 2003–20091 vehicle	09/2005 – 08/2006	N46	0005 / 851, AGS, AKL
X3 (E83) LCI1 vehicle	09/2008 – 09/2010	N46	0005 / 851, AGS, AKL
Z4 (E85)4 vehicles	03/2005 – 02/2009	N46, N52	0005 / 819, AAA, AAB, AAC, AAT
Z4 (E86)1 vehicle	04/2006 – 08/2008	N52	0005 / AAF