WORKS ON THE FOLLOWING ENGINES: CH18,CH20,CH22,CH23,CH25,CH620,CH621,CH640,CH641,CH670,CH680,CH682,CH730,CH732,CH735,CH740,CH742,CH745,CH750,CH752,CV18,CV20,CV22,CV23,CV25,CV620,CV640,CV670,CV675,CV680,CV682,CV724,CV725,CV730,CV732,CV740,CV750,CV752,ECH630,ECH650,ECH680,ECH730,ECH740,ECH749,ECV650,ECV680,ECV730,ECV740,ECV749,EKT740,EKT750,ELH775,EZT715,EZT725,EZT740,EZT750,FCV740,KT600,KT610,KT620,KT715,KT725,KT730,KT735,KT740,KT745LH640,LH685,LH690,LH755,PCH680,PCH740,SV710,SV715,SV720,SV725,SV730,SC735,SV740,SV810,SV830,SV840