Hi folks- I have a mysterious antifreeze drain behind and below the oil filter housing on my Bobcat 773 ( 2001 model ). There is a rubber sleeve 'plug' over this 1/4" or so diameter tube that sticks out about an inch and a half on the bottom part of the housing where the oil filter screws in. The trouble is, the rubber plug has a hose clamp over it that leaks every year. Trying to find a replacement plug from Bobcat has not worked so I just keep replacing the rubber 'plug' with a store bought one. I can't find the correct part on the Bobcat parts diagram. The service manual shows only a drain way up on the block, not on the oil filter housing. I'm thinking that a part was lost here years ago and just ' plugged ' , but it's a bad spot because coolant just drains out completely here when this leaks. Does anyone know if this is indeed the low point drain for this machine, and what is the correct part that should go here? The metal tube that the rubber covers and plugs has a small lip on the end of it like something is made to press onto it. Any part number greatly appreciated too. Thanks