The Horton 11-Blade Clockwise Fan Blade is a high-quality product designed to provide optimal cooling for your engine. The fan is optimized for cooling efficiency. The back of the mounting disc to the back tip of the blade measures 2.84", providing ample space for air to flow through and cool the engine. The Engine Cooling Fan Clutch is made from fiberglass reinforced heat stabilized construction, ensuring that it is both strong and durable. It retains its shape and strength even at high temperatures, ensuring long-lasting performance. This fan clutch is designed to provide higher cooling performance at lower fan speeds, thanks to its 11 blade ring. This feature not only improves fuel efficiency but also reduces noise and vibration. With a weight of 11.561 lbs, this fan clutch is lightweight and easy to install. It rotates in a clockwise direction. Overall, the Horton Engine Cooling Fan Clutch is a reliable and efficient product that will keep your engine cool and running smoothly. FleetPride is your First Click in Heavy Duty®.