美国采购需求：底盘部件、滚轮、履带链、前惰轮、履带调整器、履带压实机

I'm looking for information regarding the availability of an idle wheel compatible with a specific model of heavy machinery. Can you let me know if you currently have this part in stock? Additionally, if you do have it available, I would appreciate details regarding pricing, lead time for delivery, and any other pertinent specifications. If the idle wheel is out of stock, it would be helpful to understand when it might become available again or if there are any alternative options you could recommend. Your prompt response will be greatly appreciated as it will assist in our ongoing maintenance and operations planning. Thank you!