This is a NEW Inframe Overhaul kit for IH 1456 tractors with DT407 engines. NOTE : This kit is for engines with 1.625" piston pin diameter. Do not order this kit for a 856,1026 or 1256 .This kit contains 6 Cylinder kits which contain sleeve, piston, piston pin(1.625" diameter) and piston ring set. Rod and Main bearing sets , Head gasket set and oil pan gasket. You must Email with bearing sizes . Rod & mains are available in STD .010. .020 ,and .030. also email if oversize sleeves are needed ,they are available in std , .002, .005, and .010 . I also have major kits available for this application and many others . I have over 25 yrs. experience of rebuilding IH tractor and motors and have many parts available . Email your questions and I can probably help you.