Combines 55 combine

[Blackie]

This may help. If it has a JD HE217G engine , it has 71 brake hp.. If it is a later model 55 with a JD HB303G engine, it has 72 brake hp.. From JD 55 operators manual.

 

[clipper]

it came from the factory with a 303... the type on the serial number tag should be m61hb