Oxygen Sensor7 521 705 02

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.

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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.

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10 listings

Used

Checked 2026-10-28 16:57 UTC

€10.29 – €72.00Cheapest listing: + €14.17 shipping to Germanyestimated delivery in 41–43 daysView on Ovoko

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Aftermarket part numbers

Supplier articles whose catalogue lists 7 521 705 02. 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.

What these parts’ suppliers state

Each value belongs to the part number beside it, not to the OE number: parts that list one OE number can differ. Where your vehicle manufacturer gives a value, it takes precedence.

Specification	Value and the part numbers stating it
Fitting position	before catalytic converter NTK 93558

BOSCH: 0258007208Number of wires: 5 Recomm. replacement interval: 250.000 km Type of connector: Connector, flat contacts Type of Lambda sensor: Broadband Overall length: 620 mm
+2 moreShow fewer
Fitment conditions:For cylinders 5-8 For vehicles with automatic transmission Installation period: 06/2002, 09/2006 For cylinders 1-4 For cylinders 7-12 For RHD vehicles
+3 moreShow fewer
NTK: 93558Oxygen Sensor: Heated Oxygen Sensor: Broadband Oxygen Sensor Number of circuits: 5 Length: 600 mm
+1 moreShow fewer
Fitting position: before catalytic converterFitment conditions:Oxygen Sensor: Regulating Sensor Construction Year to: 09.2005, 09.2006, 09.2007 Construction Year from: 06.2002 Engine Code: N46 B20 B, N46 B20 C
+1 moreShow fewer

Vehicle fitment

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

17 vehicles in 11 model series, inferred

Aftermarket parts that list 7 521 705 02 fit these vehicles according to their supplier catalogues. That does not prove 7 521 705 02 itself fits every one: check the engine code, production dates and the supplier’s restrictions on the model series’ vehicle pages.

BMW

11 model series · 17 vehicles

BMW model series inferred from aftermarket parts
Model series	Production	Engine codes	HSN / TSN
1 (E87) 2004–20111 vehicle	06/2004 – 02/2007	N46 B20B.., N46 B20C	0005 / 166, AAJ, ACS
3 (E90) 2004–20113 vehicles	12/2004 – 08/2008	N45 B20A, N46 B20B.., N46 B20C, N46B20CC, N46 B20E	0005 / 820, ABY, ADN, AMF, AWF
3 (E91) 2004–20121 vehicle	09/2005 – 08/2008	N46 B20B.., N46 B20C	0005 / 877, ADX
3 (E91) LCI1 vehicle	09/2008 – 08/2012	N46 B20B.., N46 B20C	0005 / 877, ADX
5 (E60) 2003–1 vehicle	07/2003 – 08/2005	N62 B44A	0005 / 784
5 (E61) 2003–20101 vehicle	06/2004 – 08/2005	N62 B44A	0005 / 799
6 (E63) 2003–20111 vehicle	09/2003 – 08/2005	N62 B44A	0005 / 155
6 (E64) 2004–20071 vehicle	03/2004 – 07/2005	N62 B44A	0005 / 156
7 (E65)3 vehicles	07/2001 – 08/2008	N62 B36A, N62 B44A, N73 B60A, N73 B60B	0005 / 723, 724, 751, 781, 782, 890, 891, ACH, AGT, AGU
7 (E66)3 vehicles	01/2002 – 08/2008	N62 B36A, N62 B44A, N73 B60A, N73 B60B	0005 / 723, 724, 751, 781, 782, 890, 891, ACH, AGT, AGU
7 (E67)1 vehicle	10/2002 – 06/2008	N73 B60A, N73 B60B	0005 / 751, 782, 891, ACH, AGU