the pumps are pretty robust. there are some fluid additives for pumps .the good thing is you should feel the pump not working and the steering harder if it starts to fail. as they really only work turning the wheel when the car is at stand still. practice letting the car move a little before you turn the wheel. I notice quit a lot of people in the parking lot turn the wheel while the car is stopped before letting it start to move. That's a lot of work for the pump. Turning while the car is rolling is much easier on the pump. also don't hold it at full lock . back off just a little .
if its noisy there are some products that will also help . this pump is not known for early failure.
usually dealers will not as stated install parts brought in. Exception. when the dealer broke the pully on a pump they were installing and no pulleys were to be found , they were more than happy to install the one I sent them. The pully has to be removed on the pump to get to the bolts for removal. pumps are a little project for the do it yourselfer but many good indy shops will do the work properly and also will just charge their labor for hard to find parts.. they usually tell you no warranty on the part if you furnish it. On something like this pump they get a good discount so they will not mark it up any higher than the same cost to you if you buy it direct unless from a wholesale place like rock auto. since rock auto charges tax and shipping on many parts the local shops price will be just as cheap.