Arctic cat Hirth Engine Piston 181 65 Vintage Snowmobile 372 Hirth Motor MOTOREN KOLBEN panther puma ext cougar

NOS OEM Hirth 372 cc piston, 80.50mm, 160R, 18 160 SD.       ST-1.     SKU-6.    PIC-71. PIC-3171. Piston is missing one ring.