This is brand new 15T2 Model Ingersoll Rand compatible # 32133951 Valve Gasket Kit. Following are the compatible parts number with Air compressor Parts number: ? Gasket, Airhead – 3rd Stage ? Spring, Valve – 3rd Stage Discharge ? Plate, Valve – 3rd Stage Discharge ? Plate, Valve – 3rd Stage Inlet ? Spring, Valve – 3rd Stage Inlet ? Gasket, Top/bottom Airhead – 2nd Stage ? Gasket, Airhead – 2nd Stage ? Spring, Valve – 2nd Stage Discharge ? Plate, Valve -2nd Stage Discharge ? Plate, Valve – 1st Stage Disch 2nd Stg Inlet ? Spring, Valve – 1st Stage Disch 2nd Stg Inlet ? Plate Valve – 1st Stage Inlet ? Spring Valve – 1st Stage ? Gasket, Airhead – 1st Stage ? Gasket Top/bottom Airhead – 1st Stage This is not a Ingersoll Rand parts but it is compatible and fits to IR Air Compressors. This is a Private-label parts.