NH 451 Mower vs NH 450

From Steve from New Holland 04:34:33 07/23/03 Dave, TN dealer is basicly correct on the length of the bar, but early 451 mowers were the same length as the 450. 450 and early 451 knife assemblies were 28 sections long. later 451's were 29 sections long. The 450 came out in the mid 1950's and the 451 came out in the mid 1960's and New Holland has not changed model numbers since. The real main difference between the two is the bearing setup in the pitman unit. The 450 used needle bearings and the 451 uses tapered roller bearings. 450 pitmans are easier to work on, but then again, you will probably need to work on them more often. However, the 451 pitman unit is NOT failure proof either. Steve

From: East TN Dealer 21:40:32 07/22/03 One more section on the NH451 and the rest is about the same

I don't know the difference, but there was two bar lengths, maybe that's it???

Robert