I have a Cat Thirty exhaust manifold from a earlier restoration. Has surface rust but it's in good shape with no cracks or missing chunks.
I also have a main clutch pressure plate/clutch for a Cat Twenty (large PL series). It's in good shape but could not adjusted to release or engage with the adjuster ring.
I suspect the three linkages between the pressure plate and throw out collar are worn. The clutch holds well but would either be engaged or disengaged but could be adjusted to do both with the engine running.

Keep in mind these parts are heavy. I've had great service using Fastenal stores shipping services. Very reasonable costs but might have to wait a week or so longer than the normal transportation carriers. Fastenal has a transport quote number. If you have a store in your area, it's worth checking out.

I don't have a feel for what these parts are worth but if interested email me. I can supply pictures of what I have.

Thanks,
Tom

PM sent on thirty manifold

sr4440 your message pot is full.

Sorry about that.
Cleaned it up, should be room now.

Thanks
Scott

Have the Thirty parts been sold?

Not yet. One interested party for the exhaust manifold but no sale. Open to offers.

Thanks,
Tom

Do you have any items other than the manifold for a Thirty?

I think I may have some suspension springs, some manifold and crankcase gaskets and maybe a few more parts but not much.