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Metallic horizontal triplex plunger pump with brass fittings and five spray nozzles

VEVOR

VEVOR Pressure Washer Pump 3300 PSI 2.5 GPM 3/4" Shaft QXB-4

SKU CH-BNGB-D4J3C

A horizontal triplex plunger pump rated for 3300 PSI and 2.5 GPM with a 3/4" shaft, includes five nozzles and mounts on 6.5–7 HP engines

  • TypeOther Appliances
  • Width9.45
  • Delivers up to 3300 PSI for fast cleaning
  • 5 GPM flow rate handles large areas quickly
  • Anodized copper-aluminium body resists corrosion for up to 500 hours
  • Built-in regulator adjusts pressure and reduces engine noise
  • 3/4 inch shaft fits Simpson MorFlex 40224 40225 40226

VEVOR QXB-4 3300 PSI Pump Overview

The VEVOR QXB-4 is a horizontal triplex plunger pump rated for 3300 PSI maximum pressure and 2.5 GPM flow. It fits engines with a 3/4 inch shaft and 6.5 to 7 HP output, making it suitable as a replacement unit for compatible Simpson MorFlex models.

Sustained Operation Characteristics

The manufacturer recommends running the pump at 2600 PSI for typical residential and light industrial tasks to extend service life. The design targets up to 500 hours of continuous use, and the integrated pressure regulator allows the operator to lower output during pauses, reducing engine load and noise.

Build, Connectors and Daily Use

The pump body uses copper and aluminium with an anodized surface layer for corrosion resistance. It weighs 10.8 lbs and measures 9.45 inches wide, with a 3/4 inch NH garden hose inlet and a 3/8 inch quick-connect outlet. The kit includes five nozzles, a cleaning pin, a siphon tube with filter, mounting hardware, an oil level gauge and O-rings for installation.

Highlights

  • Delivers up to 3300 PSI for fast cleaning
  • 5 GPM flow rate handles large areas quickly
  • Anodized copper-aluminium body resists corrosion for up to 500 hours
  • Built-in regulator adjusts pressure and reduces engine noise
  • 3/4 inch shaft fits Simpson MorFlex 40224 40225 40226

Specifications

TypeOther Appliances
Width9.45

Questions about this item

How much noise and heat does the pump generate after running continuously for several hours?

The pump is rated for up to 500 hours of continuous use. The pressure regulator lets you drop pressure during pauses, which reduces noise and extends equipment life.

What engine and mounting hardware must I already have to install the QXB-4 pump?

You need a horizontal-shaft engine of 6.5–7 HP with a 3/4" (19.05 mm) shaft. The box includes 4 hex bolts, 4 spring washers and 2 flat keys for mounting.

Will the QXB-4 connect to my existing Simpson MorFlex 40224, 40225 or 40226 hose and wand setup?

Yes — the pump is compatible with those Simpson models. It uses a 3/4" NH garden-hose inlet and a 3/8" quick-connect outlet, matching the original connections.

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