印度尼西亚采购需求：终传动、液压柱塞泵、液压马达

I'm looking for the inner part of a travel motor that fits a specific tractor model. Could you please confirm if you have availability for this component and provide any relevant details on pricing and lead times? Additionally, it would be helpful to know if there are any compatible alternatives or upgrades available. I'm particularly interested in ensuring that the quality meets our expectations, so any specifications or insights you can share would be greatly appreciated.