PISTON KIT 87-07 YFZ350 66.25, NAMURA NA-40000-9

Part no 56-W513+225.NT (phoenixmotos.com)
YAMAHA YFZ 350 BANSHEE 1987-2007,
Yamaha RD350 LC - YPVS (1980-1987),
Yamaha RD350 AC (1950-2014),
YAMAHA RZ350 1982-1990,

Namura 66.25mm piston kit
Namura part no NA-40000-9