Is there a sticky somewhere that covers all part numbers of OE Husqvarna parts from other saws that can be viewed as an "OEM upgrade" or retrofit? The ones I have come across so far are:
Flip caps for bar oil and gas: 522620003
572 clutch cover with captive bar nuts: 575235907
Momentary stop switch: 537419001
Flip caps for bar oil and gas: 522620003
572 clutch cover with captive bar nuts: 575235907
Momentary stop switch: 537419001