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13103-54091
PISTON SUB-ASSY, W/PIN 
Proper price
JPY 21,900 (excluding tax)
 
JPY 23,652 (including tax)
 
USD 197.10 (rate $1=¥120 , including tax)
Brand
Product No. (link)
ASHIKA
 
Cylinder Head
JAPANPARTS
 
Cylinder Head
JAPKO
 
Cylinder Head
NPS
 
Piston
search part number.