Blackbird Standard Seat Dyna - Husqvarna TC/FC 4604S

in other words AA

The visor is new and distortion-free (HJ-37)

Not sure about the compatibility with your model

AIRSAL CYL KIT DER SENDA EU3 01084248 kawasaki-z-750-twin--kz750b--750-1979-esi4211677 Blackbird Standard Seat Dyna -Kits for replacing a complete cylinder, Airsal cylinders are made in aluminium and Scanimet coating ( nickel + silicon carbide ). This coating improves resistance to wear and tear also the mechanical properties of the cylinder, Hardness ( +600 wickers ), flexibility, lower heating besides low friction coefficient are the main differences against the cast iron cylinders