There are generally several HP's listed for an Ag tractor; the max Hp of the engine at the engine ouput shaft; the pto HP at 540 pto rpm; drawbar hp(drawbar force x velocity /550) and this is determined by test.
tractordata.com says the MF2605 has 38 Hp at the engine and 32 hp at the pto with live pto and 30 hp with independent pto.
/ Why do I see HP listed as 37.5 and 38.5 for the 2605?