Convert your GM R4 Compressor to a Sanden SD5H14 / 508 or a SD7H15 / 709 compressor. The GM R4 Compressor was common on GM vehicles from the late 1980's and 1990's, many people refer to it as the "pancake compressor". Please specify if your engine had an air pump or not.
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Weight: 15.0 lb
