Part number for E34 M20 oil pan dipstick tube

[Davidb785]

The engine I bought was from a 525 and has the dipstick on the oil pan, but the dipstick tube is missing.

Obviously if I use my e30 m20 oil pan the car won't have a dipstick.

Does anyone know the part number for the dipstick tube on the 525 m20? Can i use an E36 dipstick tube?

Thanks,

David