Remanufactured from Weller, the T310M Long Box transmission with bell pump delivers dependable power transfer, smooth operation, and long-lasting durability for heavy duty trucking applications. Built to OEM specifications, this model features a bell pump for improved lubrication and cooling, helping maintain optimal performance under demanding conditions. With Weller’s precision remanufacturing process, the T310M Long Box helps fleets minimize downtime, reduce maintenance costs, and maintain reliable operation mile after mile.