WHEELER-REX 700723 – Piston for 39300 & 39301 Hydrostatic Test Pumps

WHEELER-REX 700723 – Piston for 39300 & 39301 Hydrostatic Test Pumps

Replacement piston for Wheeler-Rex electric hydrostatic test pumps. This piston is a key component in the twin-piston, positive displacement pump sectionreplace a worn piston to help restore proper pressure build-up and consistent pump performance.

Features

Genuine replacement piston for the pump section

Helps correct issues caused by piston wear (loss of pressure, inconsistent output)

Designed for the Wheeler-Rex twin-piston hydrostatic test pump assembly

Ideal for service/repair when inspecting piston O-rings, cylinder heads, and check valves

Compatibility

Wheeler-Rex Hydrostatic Test Pump Models: 39300 and 39301

Specifications

Brand	Wheeler-Rex
Part Number	700723
Part Type	Piston
Equipment Type	Electric Hydrostatic Test Pump
Fits	39300 / 39301

Notes

Verify your pump model and existing piston style before ordering.

If you are rebuilding due to low pressure, also inspect piston O-rings and check valves, and lubricate as recommended during reassembly.