Crankshafts for Cummins engines

Optima produce OEM quality forging crankshafts for Cummins engines. 

KT38, KTA38: 3630075, 4099004, 3176428, 3176424, 207530, 3005598, 3015577, 3040092, 4099003, 3630060, 3630157, 33176406,

KT50, KTA50: 3629276, 4098998, 3176426, 3626832, 3627642, 3179928, 4099000, 3628873, 3648618, 33172928,

QSK45: 3311922, 3089796, 3089962,

QSK60: 3331923, 3089797, 3089963, 4097851, 3647093, 3642870, 3647088, 3642889, 3642389,