Trim tabs are two independently adjustable metal plates at the helm that are controlled by a panel. These tabs can help correct engine torque or weight distribution imbalances. Trim tabs have a purpose on a boat. They allow you to individually trim the hull and prop, as well as make lateral changes to avoid a sideways list. Because the trim tabs can handle hull trimming, the power trim can focus entirely on prop adjustment. Your boat gets optimum performance and efficiency by combining the power trim with trim tabs, which is impossible to achieve with only the power trim. Key Features: Johnson Evinrude OEM Part 75-300 horsepower Evinrude and Johnson outboards Better balance and stern lifting More inline power and faster planning Reduced yawing and drifting due to listing correction Enhanced visibility Low-speed maneuverability is improved. Specifications: SKU: 93-93104 UPC: 840080475226 Weight: 0.54 LBS Alternate Products SKU: "338742", "93-93104" Manufacturer Part Number (MPN): 93-93104