"The Panther Marine Adjustable Outboard Bracket is an adjustable, stainless steel outboard motor bracket that works with 4-stroke boat motors up to 15hp or 2-stroke motors up to 20hp with a maximum weight of 132 lbs. Twist-knob safety locks provide an increased torque rating while helping secure bracket in place. Built extra-tough and extra-wide for secondary, higher-torque, 4-stroke engines. Motor's weight is counterbalanced by heavy-duty stainless steel torsion springs for easy lifting. The Panther Marine outboard motor bracket boasts a 2"" thick, weatherproof and maintenance-free polypropylene mounting board along with aircraft-type stainless steel hardware. The 4-position lock bar and 11"" of travel allow for a better range of trim adjustment letting you fine-tune motor height for optimal performance. Meets ABYC Standards. (Do not use without Panther 55-0415 safety cableincluded.) Rated for long or short shaft engines. Setback: 8.75"" in the up position and 14"" in the down position.Manufacturer model #: 550408SS. Adjustable outboard motor bracket Works with 4-stroke boat motors up to 15hp Works with 2-stroke motors up to 20hp Maximum weight of 132 lbs. 4-position lock bar and 11"" of travel Safety locks provide increased torque rating Stainless steel torsion springs for easy lifting Includes polypropylene mounting board Meets ABYC Standards"