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Small rectangular ink pump with black plastic housing and silver metal nozzle

YINGHUA

YINGHUA Printhead Ink Pump for 4270 4734 4740 4730 4725 4838 4720 4030

SKU CH-BW7P-AJGBH

Replacement ink pump restores printhead function on compatible Epson WorkForce models 4030, 4270, 4720, 4725, 4730, 4734, 4740 and 4838

  • Product TypePrinthead
  • Compatible with Epson WF-4270, WF-4734, WF-4740 and WF-4730 printers
  • Supports WF-4725, WF-4838, WF-4720 and EC-4030 models
  • Genuine YINGHUA replacement printhead pump for reliable ink flow
  • New condition ensures consistent performance from first installation

Compatible printer models

This printhead ink pump fits Epson WorkForce printers with the model numbers 4030, 4270, 4720, 4725, 4730, 4734, 4740 and 4838. It is a new replacement part for users whose existing pump has failed or become clogged. The component restores ink delivery to the printhead so that printing can continue.

What the pump replaces

The pump is a single mechanical unit that supplies ink from the cartridge to the printhead. No extra tubing, seals, software or tools are included in the package. Buyers who need a complete printhead assembly or additional maintenance parts will have to source those separately.

Highlights

  • Compatible with Epson WF-4270, WF-4734, WF-4740 and WF-4730 printers
  • Supports WF-4725, WF-4838, WF-4720 and EC-4030 models
  • Genuine YINGHUA replacement printhead pump for reliable ink flow
  • New condition ensures consistent performance from first installation

Specifications

Product TypePrinthead

Questions about this item

Does the pump for the WF-4740 need periodic replacement?

The YINGHUA ink pump is a new replacement part for the WF-4740 and compatible models; install it when the original pump fails or print quality degrades due to ink flow issues.

What fails first on the WF-4720 pump during continuous printing?

The pump's internal diaphragm and valves wear from constant actuation, leading to reduced ink pressure and eventual printhead starvation during high-volume jobs.

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