Profile says 2000, so I'm gonna go out on a limb and hope that's still accurate.
It appears that you can only get some of the parts individually. If you're looking for the bit that goes over the locking ring which goes over the coil spring and shifter lever arm, it's part number 8350 0520 (BOOT, gearshift.) If it's the plastic bushing that goes on the business end of the shifter lever arm, you want 8350 0519 (BUSHING, shift lever.) Otherwise, you have to get everything as a kit as far as I can tell, which is 4874 289 (LEVER, gearshift.)