The rotary coupling under the steering wheel of the my freelander mk1 as the serial number XRC 100390 are these interchangable with other mk1 rotary couplings with a different serial numbers example YRC 100330.

yes but count the wires that come out of yours as it might have more if it has cruise control and radio control as long as it has same amount of wires all should be ok.Also when putting it back make sure the white square is showing in the square hole or you will snap the wire tape