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You are looking for a C6OZ-19A563-A check valve.I've seen the same part used for tilt, A/C, and cars equipped with both. I've never seen a 3-port check valve on a 67 Mustang. I see 3 and 4-port valves on Cougars, Lincolns, T-Birds, Cyclones, etc.
I found an NOS C5AZ-19A563-A1. Should that work for this application? I see it listed under the recommended in the MPC.
It looks like what I found in illustrations for the car. Is there some difference that isn't seen by the eye?
Bob, Here you are.
Thanks, Bob. I looked the part number provided by the shot of the MPC. Three came up on Ebay. The difference is the large in-out on both sides of the valve. It's also 85.00 Vs 25.00. otherwise it did look the same. If the valve functions the same I could easily make it large in-out without anyone being the wiser without removal of the vacuum line.
Thank you Bob. I wasn't sure if they worked in the same fashion. I have learned that because they look the same doesn't mean they work the same. It's why I asked you.