KK-4835 Connecting Rod with cylinder sleeve is an aftermarket replacement kit from Pro Parts Plus designed to fit the DeVilbiss Air Power Products oil free compressor pumps used by Porter Cable, DeWalt, Sears Craftmas and many othe and includes the most current style coated cylinder sleeve and will allow for just the replacement of the cylinder sleeve in the future... This KK-4835 Connecting Rod replacement kit fits many of the Oil-Free Single Cylinder air compressors pumps originally made by DeVilbiss Air Power Company... This KK-4835 is using the ACG-1 Rod Casting with the split journal and screw and does not include the bearing.