Hi Tadek, is this the P clip you are looking for ? The other clip may be the one that fastens the cable to the gearbox lid through the bolts that hold the lid to the gearbox.
Well,it seems that this special clip is mounted on the gearbox -
It’s also found on MK VII:
C.1543/7 for petrol pump cables and stop light switch cables
The C1543/X exist in a number of other locations:
C1543/6 is a Clip, securing Panel Harness (at each end) on XK120
C1543/4 is a Clip, securing Chassis Harness to L.H. Side Member and Cross Member of Chassis Frame, also R.H. Horn Cable to R.H. Side Member on XK120 (Omega Clip)
On the XK140 there are these clips as well:
C1543/2 Clip, securing Chassis Harness
C1543/4 Clip, securing Chassis Harness (Omega Clip)
C1543/6 Clip, securing Cables to Stop Light Switch and Dynamo
C1543/8 Clip, securing Speedometer Cable and Petrol Tank harness.