I don't know the part numbers, but I know the shifter knob is $132 itself. My dealer said that parts and labor for switching out both the knob and the boot would run $400-500 dollars...
These guys have your knob! I've bought two over the years... one for my Vette and one for my 370Z in the large 2.25" size. You can custom specify the pattern and thread (M12 x 1.25) for direct screw on.. Paid $41 for my last one. Great folks to deal with!Once some of the aftermarket companies start releasing black shift balls with our 6 speed pattern, that might be the best bet (combined with the $44 boot).