SEI SE117 OMC Cobra Counter-Rotation Lower UnitThe SEI SE117 is an aftermarket replacement lower unit for select 19861993 OMC Cobra sterndrives. Designed for twin-engine applications requiring counter rotation, it features a dog-clutch design with shifting in the lower unit and replaces OMC OE number 0985497.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 Counter-rotation configuration for twin-engine applications; Dog-clutch design with shifting in the lower unit; Replacement for compatible OMC Cobra lower gearcases; Applications and Replacement Reference Application: Compatible 19861993 OMC Cobra sterndrives using a dog-clutch lower unit; OE replacement reference: 0985497; Does not replace King Cobra or Joint Venture drives.Fitment and OrderingConfirm your exact drive model, serial number, existing gearcase, OE part number, and required rotation before ordering. Model year alone does not confirm compatibility.