it's gotta lifetime warranty. it doesn't make any weird sounds, it's just loud. the motor functions correctly, and the window goes up and down just fine. i think it's an ac delco or some ****. whatever checker's brand is. with my military discount it was like 40 bucks.
I got mine at autozone for around $50.00 and when I installed it it was twice as loud as factory but also twice as fast so now I dont know if the factory passenger side is ready to go or if the one from autozone is just better.