Reference Part Numbers 621826-00 Compatible with some models Sears, Craftsman Belt Style Timing belt Belt dimensions XL 0.37 x 14in PL T70 Belt Width 0.37 inches Belt Length 14 inches Includes 2 belts Timing belts normally have teeth on one side (the inside) of the belt that helps the belt grip the surface it is on. The teeth turn the camshafts in time with the crankshafts. Timing belts are typically made out of rubber with high-tensile fibers inside to make them withstand high-intensity environments and serve a longer belt life. We have parts for most major brands of lawnmowers, tractors and equipment, but or if you are looking for something special we will try to find it for you. If you need our help to find the correct part number for your mower or tractors, we are ready. We would be happy to check on that for you, just need your mower's model/product number. Our employees to check to make sure the parts you need will fit your equipment. We try to have good service and make Technology Parts Store your first store when looking for parts. Technology Parts Store was established in 2016. The company offers OEM and aftermarket replacement parts for various markets: Agricultural, Construction, Lawn and Garden, Automotive and Industrial Equipment. Technology Parts Store have been working in lawnmowers, tractors and equipment field for over many years so we know our business. With experience and expertise in these markets, we with providing quality aftermarket products, allowing our customers save money using quality replacement parts or allowing our customers to help their bottom line. Whether you sell or repair machinery or just use replacement parts, we hope that we can be your go to partner.