Sterndrive Engineering Repl Lower Unit Mercruiser Bravo OneIt can be modified to back fit 1988 - 1991 90-121-02 has a side water pick up; 90-122-02 has a side and low water pick up; Item is subject to a 20% restocking fee (Boat Covers, Bimini Tops, Outdrives, Drop Ship Items and Special Order Parts)!**Year, Serial Number, and Horsepower are required to order. Please contact us with this information after you place your order otherwise processing will be delayed.