Brand new Model 253 Ingersoll Rand compatible Air Compressor Rebuild Part Kit / Tune Up Kit / Tune Up Kit. Rebuild Kit / Tune Up Kits are assembled to include gasket kit, piston ring set, oil seal, wearing valve discs and springs, and air filter for one Air Compressor. This is not a Ingersoll Rand parts but it is compatible with IR Air Compressors. This is a Private-label parts.