Tisco the leader in aftermarket parts, Tisco offers one of the industry's largest selections at highly competitive prices. Tisco carries replacement parts for a wide range of tractors, combines and other ag and farm equipment. — Allis Chalmers, Case IH, David Brown, Ford, John Deere, Kubota, Massey Ferguson, New Holland, White, and Yanmar and many more Delivering reliable new tractor, combine and agricultural parts and accessories you need. Fast. TISCO, the trusted name in tractor parts for 75 years. Use are parts lookup to locate the correct part or give us a call for help.