More HT4 Questions

That thing is old enough I doubt the part numbers are going to be much help. I usually do a search online for the part numbers in the parts book and if nothing shows up, its time to measure it up and start looking. You never know, CAT may supply cylinder seal kits still.

One place that has just about any kind of hydraulic oil seal is Hercules Bulldog

https://herculesus.com/

There are plenty of local hydraulic shops across the country, so there may be someone close to you that can supply the seals you need if you take the old ones and some of the parts they fit in/around to them for measurement.

Cat has changed the numbering system to make things more friendly for the computers. From observation of comments on this board some dealerships and some parts persons are much more helpful than others. Yes I said persons rather than man because my last order was taken care of by a woman that seemed to know her stuff. I have a parts book the same vintage the as the u series D6 and this dealer to date is happy to work with old numbers. Your shovel is of the same decade,or maybe newer.

Would be good if the right information was in a sticky. But the new system adds 0,s to the old number to get the same number of digits as modern numbers, if my memory is correct.


I became aware of Regal parts before I got into "tractor porn" and all the places this site helps you to find. They always used Cat numbers and parts have been OK. In the early days they had a lot of genuine Cat parts that had been lost in a warehouse for decades. But not sure if they are still doing business.