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Bosch Aquastar Water Heater Repair Parts for 125B & 125FX Due to liability issues, we are not authorized to do any Warranty or Technical Troubleshooting. You must receive the correct part number from a Bosch Technician. If you need help with 125B & 125FX Repair Parts please click here or call Bosch at 1-800-642-3111. Bosch Aquastar 125B Repair Parts Warning:  Read This Before Ordering Parts for your 125B: Depending on when your heater was produced, some of the 125B parts may be different. The first 3 digits of the serial number indicate production date. See chart below to determine when your heater was produced and click on the number of your heater to get to the correct part(s). Month \ Year 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 January 861 961 081 181 281 381 481 581 681 781 881 981 February 862 962 082 182 282 382 482 582 682 782 882 982 March 863 963 083 183 283 383 483 583 683 783 883 983 April 864 964 084 184 284 384 484 584 684 784 884 984 May 865 965 085 185 285 385 485 585 685 785 885 985 June 866 966 086 186 286 386 486 586 686 786 886 986 July 867 967 087 187 287 387 487 587 687 787 887 987 August 868 968 088 188 288 388 488 588 688 788 888 988 September 869 969 089 189 289 389 489 589 689 789 889 989 October 870 970 090 190 290 390 490 590 690 790 890 990 November 871 971 091 191 291 391 491 591 691 791 891 991 December 872 972 092 192 292 392 492 592 692 792 892 992 Bosch Aquastar 125FX Repair Parts Warning:  Read This Before Ordering Parts for your 125FX: Depending on when your heater was produced, some of the 125FX parts may be different. The first 3 digits of the serial number indicate production date. See chart below to determine when your heater was produced and click on the number of your heater to get to the correct part(s). Month \ Year 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 January 861 961 081 181 281 381 481 581 681 781 881 981 February 862 962 082 182 282 382 482 582 682 782 882 982 March 863 963 083 183 283 383 483 583 683 783 883 983 April 864 964 084 184 284 384 484 584 684 784 884 984 May 865 965 085 185 285 385 485 585 685 785 885 985 June 866 966 086 186 286 386 486 586 686 786 886 986 July 867 967 087 187 287 387 487 587 687 787 887 987 August 868 968 088 188 288 388 488 588 688 788 888 988 September 869 969 089 189 289 389 489 589 689 789 889 989 October 870 970 090 190 290 390 490 590 690 790 890 990 November 871 971 091 191 291 391 491 591 691 791 891 991 December 872 972 092 192 292 392 492 592 692 792 892 992 Return to Aquastar Water Heater Main Page

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