It is recommended on Twin Cylinder Air Compressor Pumps that both cylinder sleeves and piston rings be replaced at the same time so that the air compressor pump will produce equal air output and not be out of balance. This K-0650 is the most current direct Aftermarket replacement part and has the newest style D25837 coated cylinder sleeve. The K-0650 approximate cylinder dimensions are as follows.
The K-0650 kit contains the following items. For 1 D25837 Coated Cylinder Sleeve. For 1 DAC-308 Coated Oil Free Piston Ring. For 1 SSF-3158-1 Piston Rod Cap Screw.For 1 SSG-8156 Valve Plate to Cylinder Sleeve O-Ring. For 1 ACG-45 Cylinder head to Valve Plate O-Ring. For 1 Service instructions for replacing connecting rod kit. 1 x Air Compressor Cylinder & Ring Kit (As Picture Show). Communication is the best way to solve the problem. If you have any problems after purchasing, please contac. T us in time, before opening return or case. Thank you for your understanding. Feedback is very important to us.