I couldn't be much help either I'm afraid. Jaingling factory was bought by Mahindra several years ago. Lenar US distributor switched to Dong Feng tractors (those i can help with) but shut down a couple years ago as well, parts inventory liquidated and scattered as far as I know. As you discovered the air filter is common on many of these tractors. glad you found one to work. I do have a copule head gaskets and mufflers for the 274-1 left over from our brief stint as a lenar dealer.