I hit a piece of drift wood in the lake last year and cracked my lower unit, I tried everything to repair the old unit,, after a search on the internet I came across SEI. after doing some reading on the sei lower unit and talking with them on the phone I knew I couldn't go wrong with them,, they have the best price and the best warranty on the market, so for the next 3yrs, I have no worries,, and for the shipping,, I ordered on a wed afternoon and they had it here for me on Friday so I could be on the lake the same weekend.