Can you buy a new gearbox?

Excuse me, I'm curious about the availability of a new gearbox. Is it possible to purchase one from your establishment? If so, could you please provide me with more information on the process, such as the pricing, availability, and the necessary steps to complete the purchase? Additionally, I'm also interested in knowing if there are any specific requirements or compatibility issues that I should be aware of before making the purchase. Thank you for your time and assistance.