These are identical machines and everything from Hesston fits on this Case. The Hesston was manufactured later so it has upgraded components, but they still fit.
Case 8380 has 540 pto pump, but Hesston has1000 pto pump.
Also comes with a large box of parts including spare RH gearbox, Hesstons gearboxes, bearings seals ,and other parts.
Case 8380 is working and already has some of the Hesston components on it.