Seal Kit Lower Gearcase compatible with 75HP, 80HP, and 90HP marine outboard engines.Fits models including 75, F75, 90, F90 (2003 and newer) and F80/F100 (1999–2002).Replaces part numbers 67F-W0001-20, 67F-W0001-21, Sierra Marine 18-74535, GLM Marine 87816.Package includes one lower unit seal kit containing all components shown in the product image.Verify engine horsepower, model, serial number, and year before purchase to compatibility. This is an aftermarket spare.Brand and model mentions do not imply manufacturer association.