This is everything needed to replace the internals for your older American Aro 3:1 pump along with the service to rebuild it

14 strokes/gal

Outlet Thread: 1-1/2" NPSM

Performing a Coolant Flush - 4:13

thus simplifying connectivity immensely

Freedom Hydraulics 20FT, 3/8IN ID, 3/8NPTF Male End Fittings, Heavy Duty Rubber Hose. 20,000 PSI Burst Rating. – H96620 Bung Adapter This is everything needed to20 ft 3 8 ID 3 8 NPTF Male End Fittings Heavy Duty Rubber Hose 20,000 psi Burst Rating Categories: 3 8" Hoses, Hoses Model # H96620 Hose I. D. (in.) 3 8 Hose End Fittings 3 8 18 NPTF Operating Pressure (psi) 10,000 Hose Length (ft.) 20