Belt change may be required when converting from an A6 to a Seltec/Tama compressor.Includes:• 88146222 (Compressor)• 8811100 (Pressure Switch)• 88965170 (Male/Female Adapter)• 881181 (Pigtail Connector)• 881AC3 (Bracket & Hardware)• HC70273705 (Belt)The 88830934 Compressor Conversion Kit, Delco A6 & R4 to Sanden Style fits equipment brands such as: Allis Chalmers