Oxygen Sensor - Before Catalytic Converter - E60 M5 E63 M6

Bosch Oxygen Sensor - After Catalytic Converter - Bank 1 and Bank 2

Sold Individually - 2 Required Per Car

This part is listed by BMW as BMW part number 11787836451 and is described as OEM Bosch Post-Cat Oxygen Sensor (O2) L=370mm - 11787836451 (11-78-7-836-451) - E60 M5,E63 M6. 

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