Exhaust leak.

[B1oodyBuzzard]

Had an exhaust leak at the flange next to the driver side O2 sensor. I have the new gasket in but the replacement I got from the Autozone guy is surprisingly large. Only $4 so I’m not out much but can someone tell me what the diameter of the exhaust flange gasket should be?

 

[B1oodyBuzzard]

First picture is my service manual. Second is Autozone drawing with part number

 

[Campfire]

Was the one you pulled out a correct fit, just burned away?
Then you have your measurements there. The Autozone parts are almost never the same.

 

[B1oodyBuzzard]

Was the one you pulled out a correct fit, just burned away?
Then you have your measurements there. The Autozone parts are almost never the same.

My guess the old one was the same size and possibly from auto parts store.