I have an 83 843 bobcat that has oil leaks. I'm having it repaired and find that some of the gaskets and seals are no longer sold by bobcat dealer. It has a Perkins diesel engine. The dealer said that they are trying to locate the parts and not even Perkins has them. They said the main seal, fuel pump,and pan gasket are leaking. If anybody can give me information as to who might handle the parts I will get it to my dealer. Thanks in advance for the help.