Thanks to Corey for trying to find the connector.

One thing I noticed is that at least my idiot light stays off with the wires not connected. This is an improvement from the old arrangement where the light was on all the time, due undoubtedly to a faulty contacts in the old master cylinder cap.

Philly, when you say it didn't work, do you mean that the light was on even though the master was full or that it didn't come on when it was empty? Did you test the plug/wire for continuity? I'd give shipping and a few dollars for that plug and pigtail anyway. -- Matt