Diameter * diameter * thickness - tooth number x of the inner diameter of the spline: 395 x 230 x 11.2 - 10 44.5 x models: Cummins 6BT5.9, EQB-180, EQB-210, Yuchai YC6108ZQB engine models: EQ3208G, CA3210P1K2TA80, or the original can use 380 spiral spring clutch 8-9 tons of freight, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 9 meters bus, Dongfeng, Qingdao car 9 tons of heavy vehicles, Yangzhou Yaxing series, Beiqi Futian flat car, Liuzhou 7 tons series & nbsp; above products information is for reference only