MAT - EDI

Piston assy. (includes wrist pin and retaining rings). Two required.

1-1/2 Npsm X 1/4 Npt.  NOTE: Also order the 513-0002 o-ring seal to complete the repair.

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...