Parts such as the Transmission: Circlip (4l0), Gear, 5th Wheel, Collar, Main Axle Assy are included in the Xt660r 2004 5vk1 Germany 1c5vk-300g3 Transmission parts fiche.
This TRANSMISSION assembly utilises three Circlip (4l0)(s) - the highest specified component.
The most reasonably priced component used on the Xt660r 2004 5vk1 Germany 1c5vk-300g3 Transmission is the Bolt.