SEI SE421 Yamaha Four-Stroke Lower Unit 2.00:1 30" ShaftThe SEI 90-421-B30F SE421 is an aftermarket replacement lower unit for select Yamaha 200225 HP V6 four-stroke outboards. Featuring standard right-hand rotation, a 2.00:1 gear ratio, and a 30-inch driveshaft configuration, it replaces OE number 69J-45300-31-8D. Supplied in black, it can be painted to match your engine.This item is subject to a 20% restocking fee.Year, serial number, and horsepower are required to process your order. Please contact us with this information after placing your order. Processing will be delayed until this information is received.Features Standard right-hand rotation; 2.00:1 gear ratio; 30-inch driveshaft configuration; Black finish; paint to match your engine if desired; Applications and Replacement ReferenceSEI's application guide specifically lists these Yamaha F225 models: 2002: F225TURA; 2003: F225TURB; 2004: F225TURC; 2005: F225TURD; OE replacement reference: 69J-45300-31-8D.Fitment and OrderingConfirm your full engine model number, serial number, existing gearcase, rotation, gear ratio, and shaft length before ordering. Other 200225 HP applications require confirmation with SEI. Horsepower alone does not confirm compatibility.