we are the manufacture for the piston kit, and for theDeutz 1013engine,we have produced the following engine types: E-ModelOEM NoPiston SizeOEM NoRing SizeBF4M1013C Dia:1083T 2 3.5 GL:108KH:71.1Pin Dia:42Length:86RemarkAlfin if you are intersted in them, please send us enquiries or contact us online!