Check the listing for details. CAC-248-2 Oil-Less Air Compressor Piston Ring Porter Cable Craftsman DeVilbiss. Condition: New. Listed at 11.40 USD. CAC-248-2 Oil-Less Air Compressor Piston Ring Porter Cable Craftsman DeVilbiss Product Description Brand New - Unused Parts Genuine OEM Product Includes one (1) piston compression ring as pictured Item Specifications: Replaces part numbers: CAC-248-2, CAC-248-1, CAC-248, CAC2482, CAC2481 Approximate Dimensions: Outside Diameter (OD): 2-9/16" Inside Diameter (ID): 1-7/8" Oil-Less or Oil-Free piston ring fits many air compressors including DeVilbiss, Porter Cable, Sears, DeWalt, Snap On, Ex-Cell, Air America, Charge Air Pro, Dayton, Makita, Grainger and many other private label air compressor brands. Fits the following models with the replaceable piston ring (Partial List): KK-4835, KK-5081, A02743, K-0058 and K-0650 Please Note: Do not apply any type of lubrication to the new Piston Ring or Cylinder Sleeve. This piston ring has a special coating and does not require lubrication.The application of any type of lubrication will adversely affect the life of your new replacement piston ring OUR PLEDGE TO YOU: 30-Day Money Back Satisfaction Guarantee Fit and Function Guarantee Fast, Free Shipping! ~ Check our feedback and buy with confidence Unsure? Email us with your model number and we would be happy to confirm compatibility! - This is a New, Genuine OEM product and it is backed by our 30-Day Money Back Satisfaction Guarantee. Many replacement parts should be installed only by a professional. Be safe. If you are not qualified to install this item, you are more than welcome to return it.