I haven't installed the new lower unit yet as I had to pull the engine to replace the gimbal housing unit that is bolted to the transom. Overall, I am excited about having a new unit at a cost that is affordable. I generally use OEM parts but in this instance, I'm going on SEI's reputation and reviews I read about their products. I didn't speak with anyone at SEI, I just ordered the unit from the website. They shipped it right away and I was supposed to have it a few days ago. However, there was some sort of delay with Fedex and the part came 3 days after the original projected delivery date. It didn't matter in this instance.