BMW e24 e32 e34 Oxygen Sensor OEM bosch lambda probe o2 sender sending unit. Brand new Oxygen Sensor specific for 635csi, not a'universal'. Recently manufactured by OEM Bosch, not been laying around.
Be wary of so called'universal' sensors that in theory should fit any car. The impedance and connectors are often incorrect. Please note the mid-year split in applications below.
Not sure about your car? Part# 11 78 1 720 537 , fits. The item "BMW e24 e32 e34 Oxygen Sensor OEM bosch lambda probe o2 sender sending unit" is in sale since Thursday, August 22, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Exhaust\Other".
The seller is "a2eurotec" and is located in Ann Arbor, Michigan. This item can be shipped worldwide.