Features: Made of aluminum alloy material, durable and practical. Easy and convenient to install, directly replaces the old or broken one. Ultra-stable performance and high reliability for convenient and comfortable use. Fitment: For 2 stroke outboard motor 4HP, 5HP, 6HP; 4 stroke outboard motor 4HP. Compatible with the following models: - 1992 4MHQ Lower Drive 1 - 1992 4MLHQ Lower Drive 1 - 1992 4MSHQ Lower Drive 1 - 1993 4MLHR Lower Drive 1 - 1993 4MLHR Lower Drive 1C - 1993 4MSHR Lower Drive 1 - 1993 4MSHR Lower Drive 1C - 1994 4MLHS Lower Casing Drive 1 - 1994 4MSHS Lower Casing Drive 1 - 1994 5MSHS Lower Casing Drive 1 - 1995 4MLHT Lower Casing Drive 1 - 1995 4MSHT Lower Casing Drive 1 - 1995 5MLHT Lower Casing Drive 1 - 1995 5MSHT Lower Casing Drive 1 - 1996 4MLHU Lower Casing Drive 1 - 1996 4MLHU2 Lower Casing Drive 1 - 1996 4MSHU Lower Casing Drive 1 - 1996 4MSHU2 Lower Casing Drive 1 - 1996 5MLHU Lower Casing Drive 1 - 1996 5MLHU2 Lower Casing Drive 1 - 1996 5MSHU Lower Casing Drive 1 - 1996 5MSHU2 Lower Casing Drive 1 Specifications: Material: Aluminum alloy Blade quantity: 3 Spline tooth quantity: 9 Diameter: 190mm Pitch: 8 inch Note: Please allow 1-3mm error due to manual measurement, and slight color difference due to lighting and screen settings.