[ossiblue]

+1 to what John posted.

On my wur, for a 76S, the last three digits which set the part aside from others is #033, and it's located approximately where the hose clamp in your photo is--a location we can't see from your picture. That being said, your wur doesn't have the other stampings on top either, as does mine, including the "0-438-140-090". You may have to remove some connections, as John suggested to find the actual wur ID.

Do you have a vacuum hose attatched to the bottom of the wur? If so, does it attatch to the side of the wur where the electrical connection is? If so, your wur is likely a "009".