This genuine Toro OEM 48-inch replacement deck belt is designed for Toro TimeCutter zero turn riding mowers. The deck belt transfers engine power from the deck pulleys to the cutting blade spindles - when it stretches, glazes, or breaks, the blades disengage and cutting performance drops immediately. Toro OEM belts are manufactured to exact engineering specifications and rigorously tested for consistent performance and correct fit. Verify your model and serial number before ordering.