631200 Genuine Dishwasher Drain Pump 00631200 for Bosch, Siemens, Neff Dishwashers SMS50E32AU SMS66MI02A SMS63M28AU SMU66MS02A SN26M831AU

Water sitting in the bottom of a Bosch dishwasher after the cycle ends usually means the drain pump has given up. Part 631200, often written as 00631200, is the genuine BSH drain pump for Bosch, Siemens and Neff dishwashers. It covers a wide spread of models, for example the SMS50E32AU and SMS40E08AU, the SMS63M28AU and SMS66MI02A, SMS46KI02A and SMS6HCW01A machines, the SMU66MS02A and the Siemens SN26M831AU.

Bosch dishwasher not draining

At the end of each wash and rinse, the drain pump pushes dirty water out through the drain hose to your sink waste or standpipe. When its impeller jams on broken glass or a fruit seed, or the motor winding fails, water stays behind in the sump. You may see a drain error on the display, hear a hum or buzz with nothing moving, or notice the cycle stalling part way. Before blaming the pump, clean the filters and check the hose for kinks, as those cause the same symptoms.

Part details

• Genuine BSH part 631200, also written 00631200
• Fits Bosch, Siemens and Neff dishwashers
• Listed for Bosch SMS, SMU, SMI and SMP series models
• Also suits the Siemens SN26M831AU

Replacing the drain pump

Switch off at the wall, turn off the tap and empty any standing water from the sump. On most models the pump is reached by removing the kickboard or easing the machine out and tilting it, so put towels down first. Note the wiring and how the pump locks into the sump, swap it over and run a rinse to check for leaks.

Questions about this part

What does the 00 at the start of 00631200 mean?

BSH part numbers are often written with leading zeros. 631200 and 00631200 are the same part, so either number on your old pump or parts list matches this listing.