The K479 Vane Kit is compatible for Gast models 1023 and 0823 Rotary Vane Air Compressors. Gast compressors provide many years of dependable service but due to continual wear over time some compressor components may need to be replaced to continue to provide the proper air flow.
Instead of purchasing a new pump, you may need to just replace some internal components. (4) Vanes, Dimensions 2" L x 1-1/2" W, Thickness 3/16.