Changed oil cooler O-rings and broke filter housing.....Need input!

[DHR Motorsports]

There was what looked like a bypass valve with two steel plunger pieces and a spring that fell out when I removed the oil cooler. I put them back in the way I THOUGHT they came out and when re-installing the filter housing end of the cooler it broke the pocket where these parts sit inside.
My question is where does one source those parts and what is the correct order they go together as obviously I had it wrong.....

[DHR Motorsports]

Ok, I TIG'd the filter housing back together and all is good there but now at idle the oil pressure gauge reads zero but at 1000 rpm it is right where it always runs.... Any ideas??

[Patrick Feeley]

You want this part:

Oil Filter Header (updated snap ring retained bypass and regulator valves)
(Ford) F81Z-6881-BA

Try Tousley Ford Parts Online for probably the best price. Cheers!

[DHR Motorsports]

Thank ya sir!!