This is A NEW Overhaul Gasket Set with crankshaft seals for IH Tractors with engines:
Gas: C152, C164
This Gasket Kit fits IH Tractor models:
U164, Power Unit
U4, Power Unit
I'm also available via phone or email to help with proper installation before you get started. (Email normally works best for me).
Check out my store for other IH parts. I have over 30 yrs. experience of rebuilding IH tractors and motors and have many parts available. Email your questions and I can probably help you.