Hello guys, I am looking at an older loader for a snow loader. Have multiple newer machines but looking to add a pre- emission loader to replace my old cat it-18f. I was looking at deere 544h loaders, mid size case loaders and basically anything that's a deal, clean and well maintained. Brand isn't a huge deal to me as there isn't much in my area but we primarily have case/new holland, cat and deere. I have found a few case loaders I like. 721, 621b, 621c and 721d. What are the main differences in the straight 721, b and c series? Thank you guys! Currently have a couple d series case so I know what those are but not sure on the differences of the earlier models.
The main difference between the "A,B, and C series loaders are the electronics. Parts for the early 621 and 721 loaders are hard to find parts for some items. The B series have better brake system and smoother shifting. The C series upgrades the trans by adding the auto shift for road travel and brakes were upgraded again with different axles.
There are some differences in the hydraulic system. The main thing on the C series is they went from a gear pump to a vain style pump.
Thank you very much for the info. So what year range could a straight 721 be and a 721b be? Thank you
The 721 was made from 1989-1992 and the B series were made from 1993-1998