This oil tank assembly is designed for use with Mercury Optimax 135-225HP 833069T9 outboard engines. It is made of high-quality polyethylene material and comes with a 1-year warranty. The assembly includes an oil reservoir tank and a pump, all in a sleek white color. Fitment is compatible with 2000-2014 Mercury, Mariner, Quicksilver, and SportJet 2.5L engines. OE/OEM part numbers are 1200-8M0063190, 12008M0063190, 8M0063190, 833069T9, and 833069T6. This product is perfect for those looking to upgrade their outboard engine's oil system.