Belt Pulley Ø [mm]: 125; Operating voltage [V]: 12; Number of grooves: 8; MAZDA: 3 (BK),6 Station Wagon (GY),3 (BL),CX-7 (ER),6 (GG),6 Hatchback (GG),3 Stufenheck (BK),3 Stufenheck (BL); AC Compressor Clutch,Air Compressor Clutch,Air Conditioning Compressor Clutch,Magnetic Clutch, air conditioner compressor