Does anyone know the part number of the metal locking ring that secures the sensor wire to the MAF? I lost this a while ago and I want to make sure the cable is securely attached.

I have checked realoem and still no luck. I also asked this question yesterday on that "Questions you thought were too dumb to ask" thread but seems as most people didn't see my post or disregarded it.

Thank you

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2005 BMW X5 3.0i
2013 BMW M3 Competition