19TFB 4043 "550163 not available, alternative M4Q045.EA01.G3 ""550163"" HELICE D250MM or M4Q045.EA01.G3 ""550163"" HELICE D300MM---!!!BRAND EBM Papst!!!!!!";Fan Motor "19TFB4043 ""551053"" *5192641*" type : 30KFB4004 30KFB4008 "30KFB4008 ""8668735"" ""550124"" *5302472* obsolete, replaced by 30KFB4008 ""8668735"" ""550164"" *5302472* HELICE D250MM";Fan "19TFB4104 ""551094"" *5192788*" 6129000002 30KFB4004 "30KFB4004 8668733 ""550123"" *5302471* HELICED250MM" Type: 30KFB4004 Code: 5302471 "19GFB4041 ""551033"" *5192337*" "30KFB4008 ""8668736"" ""550164"" *5302472*" "19TFB6066 5192685 alternative YDK80.6A ""261563""" "30KFB4004 8668733 ""550123"" *5302471*HELICED250MM" 30KFB4015 alternative 8668745 or 8668746