Ryan, good question. This one is at least 25 years old so obsolete parts should not really be a shock to me. Driftpins suggestion of the HF unit got my attention and I really did not consider HF because of my old policy of being cautious of anything from HF if it gets plugged in. The suggestions and help here are good and have got me to rethink my air needs so we will see what shakes out.
Try the warranty if you decide to buy the HFT unit, if it lasts a year in frequent use, you'll probably get long use out of it. I've heard it said that if an electrical appliance is going to fail, it's going to happen quickly, assuming that you aren't abusing it, to force a failure.
In-defense of HFT corded tools:
I bought a new HFT SDS-MAX hammer drill demo tool for < $90 on-sale, it paid for itself on the first job I bought it for, demo'ing two bathrooms, and while I don't use it frequently, when I had to set some threaded 5/8" drive-pins for fastening PT 2" X 6" footer plates to a concrete slab, it did the job quickly while a DeWalt battery-powered hammer drill couldn't do the job, at-all. I think Harbor Freight has some good products, and for me, this was one of them. BTW, I have a corded Milwaukee Holegun hammer drill, and for the footer plate job, I didn't even-try to use the corded Milwaukee. I reached for the SDS-MAX HFT and did the job.
