Which pumps does this Piston Keeper fit?

It fits the APLEX SC-65L and SC-115L reciprocating pumps.

What does a piston keeper do in the pump?

It retains the piston assembly in its installed position on the rod within the fluid end, keeping the piston seated as it reciprocates inside the cylinder liner.

Which part number does this replace?

It is an aftermarket replacement for APLEX SKU 7203-0730-00A. The brand and number are used for cross-reference only.

Piston Keeper for APLEX SC-65L/SC-115L

Piston Keeper for APLEX SC-65L/SC-115L — Piston aftermarket replacement part

This Piston Keeper is a fluid-end retaining part for APLEX SC-series reciprocating pumps. It holds the piston assembly in position on the rod so the piston stays seated as it reciprocates inside the cylinder liner. It fits the APLEX SC-65L and SC-115L pumps and weighs about 0.77 lb. This is an aftermarket replacement part offered as a substitute for APLEX SKU 7203-0730-00A; the brand and part number are listed for identification and cross-reference only and do not indicate OEM manufacture.

What it is

A pump piston transmits force from the power end to the pumped fluid inside the cylinder liner. It carries the sealing element and reciprocates within the liner bore on every stroke.

Pump compatibility

Specifications

Property	Value
Weight	0.77 lb (≈ 0.35 kg, converted)
Width	2.20 in / 5.6 cm
Height	2.20 in / 5.6 cm
Depth	4.1 cm

Manufacturer technical notes

Piston Keeper for APLEX SC-65L/SC-115L (SKU:7203-0730-00A), designed for hemisphere cups, forged from ASTM A216 WCB carbon steel with solution treatment (HB240-280) and nitriding. Compatible with Vermeer 36x50 pump crankshaft kits, pressure resistance ≥150MPa, API 7K certified.

Verbatim from the Dongli product page on dlhddrilling.com.

Replacement / interchange

Aftermarket replacement cross-referencing Aplex 7203-0730-00A.

FAQ

Which pumps does this Piston Keeper fit?: It fits the APLEX SC-65L and SC-115L reciprocating pumps.
What does a piston keeper do in the pump?: It retains the piston assembly in its installed position on the rod within the fluid end, keeping the piston seated as it reciprocates inside the cylinder liner.
Which part number does this replace?: It is an aftermarket replacement for APLEX SKU 7203-0730-00A. The brand and number are used for cross-reference only.

Related parts

See all Piston →

All brand names, model numbers and part numbers are used for identification and cross-reference only and do not imply original-equipment manufacture. This is an aftermarket replacement part.

Need a quote or part lookup? Contact our team.