The original pressure switch for this washer has been discontinued which has created a conundrum for those with the F35 or SUDS error codes. Here's the work-around:

Well the part number W10312527 is a replacement with a little work.

(maybe just a plastic key tab on the connector that could be cut off?).

that is correct, the tech had to snip a little plastic off so the key type insert would fit.

The machine worked fine with this part. The washer was a Whirlpool WFW9600TW00

Good Luck

Part Link ==> Pressure Switch

Source: Analog Pressure Switch... F35..SUDS