Alternator12 31 7 838 656

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

€201.34

plus €18.12 shipping to Germany, on Ovoko

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

AUTODOC

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New

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Ovoko

2 listings

Used

Checked 2026-10-29 14:25 UTC

€201.34 – €226.80Cheapest listing: + €18.12 shipping to Germanyestimated delivery in 1–5 daysView on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 12 31 7 838 656. Check the supplier’s own restrictions before ordering.

VALEO: 439675Voltage: 14 V Alternator Charging Current: 180 A Fastening Type: 3-point attachment Position/Degree: L 95 ° Rotation Direction: Clockwise rotation Pulleys: with V-ribbed belt pulley Number of ribs: 6 Belt Pulley Ø: 54 mm Clamp: B+(M8) Weight: 7.46 kg
+7 moreShow fewer
440252Voltage: 14 V Alternator Charging Current: 180 A Fastening Type: 3-point attachment Position/Degree: L 95 ° Rotation Direction: Clockwise rotation Pulleys: with V-ribbed belt pulley Number of ribs: 6 Belt Pulley Ø: 54 mm Clamp: B+ Distance of mounting bores: 75 mm Weight: 7.33 kg
+8 moreShow fewer
VEMO: V20-13-50033New part without deposit: Yes Supplementary Article/Supplementary Info: with integrated regulator New Part: Yes Connector / Clamp: without connection for speed sensor Voltage: 14 V Number of ribs: 6 Alternator Charge Current: 180 A Pulleys: with belt pulley Belt Pulley Ø: 54 mm Fastening Type: 3-point attachment Rotation Direction: Clockwise rotation Position / Degree: L 95
+9 moreShow fewer
WALKER: WAL01097Voltage: 14 V Alternator Charging Current: 180 A Number of ribs: 6 Pulleys: with multi-belt pulley Belt Pulley Ø: 53 mm Plug Type ID: 0240 Vehicle Electrical System Design: for vehicles with 12-volt electrical system Clamp: M8 B+;COM PLUG 164 Bore Diameter 1: 10 mm Net weight: 7.03 kg
+7 moreShow fewer

Vehicle fitment

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

12 vehicles in 8 model series, inferred

Aftermarket parts that list 12 31 7 838 656 fit these vehicles according to their supplier catalogues. That does not prove 12 31 7 838 656 itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

BMW

8 model series · 12 vehicles

BMW model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
3 (E93) 2006–20132 vehicles	12/2006 – 12/2010	N54 B30A	0005 / AHK, AUV
3 (E93) LCI2 vehicles	03/2010 – 10/2013	N54 B30A, N55 B30A	0005 / AHK, AUV
M3 (E90) 2007–20081 vehicle	03/2007 – 07/2008	S65 B40A	7909 / AAI, AAL
M3 (E90) LCI2 vehicles	09/2008 – 12/2011	S65 B40A, S65 B44A	7909 / AAI, AAL, AAS
M3 (E92) 2007–20132 vehicles	03/2007 – 06/2013	S65 B40A, S65 B44A	7909 / AAH, AAM, AAT, AAW
M3 (E92) LCI1 vehicle	03/2010 – 06/2013	S65 B40A	7909 / AAH, AAM, AAW
M3 (E93) 2007–20101 vehicle	07/2007 – 02/2010	S65 B40A	7909 / AAJ, AAN
M3 (E93) LCI1 vehicle	03/2010 – 10/2013	S65 B40A	7909 / AAJ, AAN