Ian, 17022 is the superseded part number that comes up for the FT motor. Weird that it has freeze plugs and not drain plugs.
I am taking an amateur's look at the oil cooler cover variations. There are a lot and I can't readily discern differences.
There are several variations: 15721-17010 listed for 1HZ from 1/90-roughly till 2000. Still available.
15721-17011 superseded, lists to 17012.
15721-17012 for 1HZ 1/09-8/16, currently available on Partsouq. Can't tell from pics if it uses freeze plugs or not.
17012 is the part number for the 1HDFTE.
15721-17020, which is visually identical to 17010, listed for 8/92-5/97.
15721-17021 unavailable, no pictures, listed for 5/97-1/98.
15721-17022 superseded part for 17021, has freeze plugs, no center plug. Available from Partsouq.
At some point the oil cooler covers have 4 long bolts instead of 2. I can't tell which one those are from the diagrams or pictures.
I went back and ordered a 17020 on
@Onur 's recommendation.
The FTE motors have a cute little oil catch pan that mounts below the oil filter to catch oil when changing filters. I grabbed one.
15674-17010
I'm sure this is splitting hairs, but I don't want to blow a freeze plug and blow all my oil and or coolant.