If you are looking for parts for a SuperTigre G40, that would be a very old engine for which we'd have no parts whatsoever. If you are asking about the current-series GS40, then we have the wrist pin and dust cover available, and cylinder liners will become available shortly, when the next shipment of engines and parts arrives.

For an out-of-production engine, you'd have to check with retailers who collect engines and parts for the engine collectors, or try various swap-shop areas like the ones here on RCU.