Ingersoll Rand ARO 637124-EB Diaphragm Pump Repair Kit

The ARO 637124-EB Diaphragm Pump Repair Kit is a fluid-end service kit for the 1-1/2" metallic ARO PRO Series air-operated double-diaphragm pump. It includes two Santoprene diaphragms and four Santoprene check balls, plus a complete set of internal components—nine O-rings, nine seals, and ball-type valves—to refresh the wet end during maintenance. Diaphragm and check-ball materials are Santoprene, providing chemical resistance for common pump fluids. The kit is designed specifically for ARO PRO Series 1-1/2" metallic pumps and supports a maximum media intake pressure of 120 psi. This repair kit supplies the essential parts to restore pump performance without replacing the entire unit, making it suitable for in-field service or shop repairs of the fluid end.