Yep, I have been using it for many years, not just for parts, but sometimes I put in a car and search on something like rear window which is almost always still there, just to find a close yard that has one of the cars in it, just to peruse what is left.
Also, it is a good rough guide for interchangability, like if you pick the 3.7 v6 engine in my 2002 Jeep liberty, it will also hit on the 3.7 in the Dodge Pickup for some years. It will only hit on a direct fit, not something that is 99% similar, like the engine, that you may need to swap an internal part for compatibility.




P.S. napa.com is also a good site to find what other car a certain part will work on.