Remanufactured outboard powerhead, Direct Fuel Injection technology.. Fits:. Mercury/Mariner V-225 Optimax DFI (3.0L) outboard, 0T599000 - 2B535086. Quicksilver offers a wide variety of 2-Stroke and 4-Stroke remanufactured powerheads for Mercury and Mariner applications between 75-300 HP. All powerheads are completely disassembled, precision machined, honed, cleaned and assembled by a team of factory technicians. Remanufactured to fully jeweled precision with 100% OEM components using the latest engineering revisions, these products are the only logical choice for a remanufactured powerhead. Quicksilver's remanufactured powerheads come with a 1-year factory limited warranty.. This product may require a core/container deposit.