Generally
Factory new water pump. Complete with all the gaskets you need to mount it to the engine. Please note that the alignment of belts on water pumps is not always correct on the new water pumps, nor on the refurbished water pumps. When Cadillac manufactured the pumps, there were a lot of different part numbers different year models with or without A/C early or late model and more and more. And on them, the hubs were different lengths in. Then, since they are part of Cadillac's spare parts range, they are refurbished by different companies and then they put the pulley in a middle position, so sometimes the water pump hub is too far in and sometimes too far out. And sometimes absolutely perfect actually. It works well though, we have our own 1959 that I fitted this pump to in 2011 and I have driven it 1800 miles with a alignment that is not straight and it works perfectly to this day. What you can do is that if the pulley is too far in, we have developed a shim that you can put between the water pump and the pulley to move the pulley out a little. We include a shim free of charge in the pump box if you need to use it, do so. If the pulley is too far out, you can remove the pump and unscrew the water pump cover at the back so that you can put a stop on the shaft end of the bearing and then press the hub in a bit. The hub only fits with a press fit. But then you have to have a hydraulic press and substantial counters and press sleeves so you don't damage anything. Or you can just let it line up badly and drive, which is what we did on our own car. Unfortunately, there is nothing we can do about this, except to stop selling the water pumps. There is only one manufacturer in the world of these water pumps, so we have no choice where to buy them. Another thing with the new water pumps is that it is a special bearing that has a built-in backlash that can compensate if you have a fan or pulley that is a little out of balance. With a completely dumb bearing and a fan with an imbalance, the nose of the water pump can crack in the bearing position, this is a fairly common fault with Cadillac original water pumps. But in summary, we can state that we sell approximately 100 of these pumps per year, and we have done so since 2011 with almost no problems. To emphasize how much we trust these pumps, we provide a 3-year warranty on them from the date of purchase. It's the same warranty you get if you buy a brand new Cadillac, good huh!
