Bosch Oxygen Sensor P/N:17487
Bosch 13523 oxygen sensor for the 1994-1995 BMW 530i V8 3.0L and other vehicles measures exhaust oxygen and reports the air-fuel ratio to the ECU. That signal helps the ECU keep combustion steady and emissions down.
A check engine light, a rough idle or poor fuel economy can mean an oxygen sensor is wearing out. These signs alone don't prove the sensor is the problem, since a vacuum leak, for one, can skew the readings.
As an oxygen sensor for the 1994-1995 BMW 530i V8 3.0L, it also fits the 1994-1995 BMW 540i V8 4.0L and the 1994-1995 BMW 840Ci V8 4.0L. This listing is one sensor; the 1994-1995 BMW 530i V8 3.0L takes two.
Fit and size
Build and materials
One oxygen sensor with its wiring harness. A mounting bracket is not included.
Does this Bosch 13523 oxygen sensor fit the 1994-1995 BMW 840Ci V8 4.0L?
Yes, Bosch 13523 fits the 1994-1995 BMW 840Ci V8 4.0L, which takes two sensors; this listing is one upstream sensor.
Is this Bosch O2 sensor upstream or downstream?
Upstream. This sensor is made for the upstream position.
Does this oxygen sensor come with a wiring harness?
Yes, the wiring harness is included. A mounting bracket is not included.
Is this Bosch premium oxygen sensor heated?
Yes. Bosch 13523 is a narrow-band heated oxygen sensor that reaches operating temperature in <10 seconds.
What thread size and hex size does this oxygen sensor have?
The thread is M18 - 1.5 and the hex is 22 mm. Length from the sealing surface to the end of the connector is 17.7 in.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.