Bronco Motordyna Polaris

O.D.47.5MM, T:22.5MM, BOLT:M10 X PITCH 1.5 X 17.4(L)MM, HARDNESS: 55+/-5 DEGREEBOLT HOLE:M10 X PITCH 1.5 X 14.4MM, COLD RESISTANT TO - 40 DEGREE C