Old Part Numbers: 165-0304Overhaul kit for the HB55 in-line 2-stage air compressor pump, includes valve plate assembly with valves, gasket set, piston ring set, conrod insert bearings, oil seal, and air filter element. If you have a sudden loss of...

2" NPSM X 3/4" NPT (SVC)

Old Part Numbers: ST072321AV, 058-00123/4" compression nut & sleeve (2 required). For air compressor units made before 05/20/1994.