As a leading gear pump manufacturer, ChangJia offers customized gear pump services for your hydraulic system, with a complete range of sizes to fit every application need. We have many gear pumps for the different tractors and construction machines, like Massey Ferguson, John Deere, FIAT, Ford, Duetz, Kubota, etc. We also provide European/American standard gear pumps like group 1, 2, 3, with different flange sizes, oil port sizes. If you have other needs, you can also contact me, we have develop ability, can design according to your requirements.