This is Metal Fiberour Washer with the Hole of 12mm and O.D. of Approx. 21mm and is 5mm thick.
This Boot for the HiSun 1000 is from the Throttle Body to the Plastic intake pipe.Approx. I.D. of 68mm and 76mm. Part # 17501-119-01000 is embossed on the rubber body.
