Electric starter motor compatible with KUBOTA B21 AGRICULTURAL MACHINE ENGINE CHARACTERISTICS: mounting hole in mm: 105.00 overall length in mm: 202.40 length of flange in mm: 149.00 number of teeth: 9 outer Ø in mm: 67.60 CODE: 31-207 ORIGINAL CODE: 17423-63010 17423-63012 6A100-31150 6A100-31151 6A100-31152 CZ