The pictured pump is the one Ron Meditz used to sell - the AC type. I had one on my 6 cylinder J for a long time and the only complaint I had was it was noisy. It also had a tendency to spew oil out the side. I eventually found a Carter type such as the one Joe Frazer posted and installed that because, as Joe pointed out, that's the Carter pump the HJ six was originally equipped with. It's not an easy pump to find so if you're going to have one rebuilt I'd recommend grabbing the one on ebay and having it rebuilt.