Do you REALLY need to buy the whole kit for a leak?!

Do you REALLY need to buy the whole kit for a leak?!
We have a leak at the flange between circ pump and its housing on a SHU9925 Bosch dishwasher.
It seems the only way to get parts for that is to buy the entire kit (AP2802376)

Is that really true or necessary?

Thanks
Pete

Yes Pete, you do have to buy this kit because Bosch does not sell the seal separate.

Gene.

Thanks Gene,
would you recommend to use all teh parts out of the kit?
I assume Bosch put that kit together for a reason.

Is this a typical problem causing leaks into the floor pan?
I’m still not 100 sure that I found the leak. Indicator is sediment around the lower part of the flange.

Thanks again
Peter