Replacement Gray High Back Seat. Specs – Seat Back Height: 18 1/2. Refer to images 2 & 3 for more information. Features – Heavy-duty vinyl covering. Vacuum formed waterproof vinyl. Ergonomic cushions to ensure operator comfort. Durable blow molded plastic frame is corrosion resistant. Central drain hole prevents water build-up. 19″ high-back seat which will replace both original 16″ and 19 high-back seats. This seat may fit the models listed, adjustments could be required for proper installation. PLEASE CHECK the bolt pattern measurements shown in the images and comparing them to your original seat. This seat requires standard 5/16-18 UNC RH thread bolts for mounting (NOT INCLUDED). Applications with pivot rods may need a bracket (NOT INCLUDED). The original seat switch may not work for this seat.