[Rebuild Compressor as New] When your compressor runs so loud or does not build pressure, please use this compressor ring kit to fix it, our high quality ring kit will fix the problem and make the compressor working like a new one. [Fit Your Needs] Fits model number 165080, this ring kit fits for many models compressor, please check your model with the compatibility list description below. [Easy to Install] Extremely easy to install the kit, just take the cylinder system apart, the new sleeve has a rolled bottom so you need to remove the piston from the shaft and slide it up over piston, put the ring on piston before inserting into sleeve will be easier. [Built to Last] the cylinder sleeve is hardened to tough and high pressure withstand, and it's rustproof and corrosion resistance. The piston ring and sleeve O-rings are made of specific rubber, they the cylinder and provide a great airtightness to minimum loss of gases. They are very that could for many years. The K-0650 Cylinder and Piston Ring Replacement kit will fit both the single cylinder oil-free pumps and the twin cylinder oil-free pump made by , , Sears , Snap On, , Air America, Charge Air Pro, Grainger, & K-0650 Compression Ring Kit for Black and Compressor Cylinder dimension: Inside Diameter: 2.365 inch; Outside Diameter: 2.495 inch; Outside Shoulder: 2.945 inch; Total Height: 1.980 inch Replace Part Number: K-0650 Material:Metal colour:Silver The accessories are as shown-random, Not accept designation Package Contents: 1 x D25837 coated cylinder liner 1 x DAC- coated oil-free piston ring 1 x SSF-3158-1 piston rod cap screw 1 x -8156 valve plate to cylinder liner O-ring 1 x ACG-45 cylinder head to valve plate O-ring Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.