My dishwasher is leaking from the drain solenoid. Is this repairable or do I need a complete motor/pump replacement?

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Parts for GE GSD1230X66WW Dishwasher - AppliancePartsPros.com

Looks pretty bad.
I would get the seal (item 417 in section 04) and a push-on nut (item 415 in section 04). The nut will probably be toast once you get it off.
Also not which way the seal goes in before replacing it.

Clean the flapper valve shaft as best you. It may be too corroded.

It might be worth replacing the solenoid assembly (item 493 in section 04), if it does not clean up OK.

I would also check that the check valve (item 557 in section 04) is OK. These often go and then the wash is not as good as it could be re: water comes out of the hole during the wash cycle instead of going up to the spray arms.

I would check the floor just to be sure it is not rotting out.

Would also not hurt to check the sump. I have seen these get a crumbly coating on the inside. If it has this then it is just a matter of time before you get a major leak.

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