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Product / / 85.129.071B

AR XW3028N Triplex Pump Assembly – 7.9 GPM, 4,060 PSI

AR XW3028N Triplex Pump Assembly – 7.9 GPM, 4,060 PSI

Specifications

UNLOADER

External 85.300.033

WARRANTY

5 Years

RPM

1,750

PUMP MODEL

AR XW3028N

PUMP TYPE

Triplex

Oil Type

30W Non Detergent

Oil Capacity

37 oz

Thermal Relief Value

85.300.022

Max Inlet Temperature

74°C / 165°F

Manifold Type

Brass

Soap Injector

Adjustable 85.400.000

Discharge Size

3/8" Brass QC 85.300.108

Inlet Size

3/4" GHF

Plunger Piston

Ceramic

Unloader Type

External 85.300.033

Max GPM

7.9

Shaft Size

24 mm

Weight

40 lbs

Belt Drive

Gas / Electric

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PRODUCT

DESCRIPTION

Industrial-Grade Belt Drive Pump for High-Performance Cleaning

The AR XW3028N Triplex Pump Assembly (Bare Pump Part #85.129.071) is a professional belt-drive plunger pump designed to deliver both high flow and high pressure for the most demanding cleaning jobs. With a maximum output of 7.9 GPM at 4,060 PSI, this pump is ideal for industrial contractors, commercial maintenance crews, and operators who need reliable, long-lasting performance in their pressure washing systems.

Manufactured by Annovi Reverberi (AR), a global leader in pressure washer pump engineering, the XW3028N is built with a brass manifold, ceramic plungers, and a low-RPM belt-drive system to maximize durability while reducing heat and wear. Its external unloader system, adjustable soap injector, and thermal relief protection make it both powerful and safe to operate in heavy-duty environments. Backed by a 5-year warranty, this pump is a professional solution for long-term reliability.

Key Features

  • Bare Pump Part #: 85.129.071

  • Pump Manufacturer: Annovi Reverberi (AR)

  • Pump Model: XW3028N

  • Pump Style: Triplex, belt drive

  • Drive Type: Gas/Electric compatible

  • Max Pressure: 4,060 PSI

  • Max Flow Rate: 7.9 GPM

  • Shaft Size: 24 mm

  • Unloader Type: External (85.300.033)

  • Plunger Material: Ceramic

  • Inlet Size: 3/4" GHF (garden hose fitting)

  • Discharge Size: 3/8" Brass QC (85.300.108)

  • Soap Injector: Adjustable (85.400.000)

  • Manifold Type: Brass

  • RPM: 1,750

  • Max Inlet Temp: 74°C / 165°F

  • Thermal Relief Valve: 85.300.022

  • Oil Capacity: 37 oz

  • Oil Type: 30W non-detergent oil

  • Weight: 40 lbs

  • Warranty: 5 Years

Built for Heavy-Duty Performance

The triplex plunger design ensures smooth operation, high efficiency, and long service life. With three precision ceramic plungers, the XW3028N resists abrasion and heat, protecting seals and key components during prolonged use.

At 7.9 gallons per minute, this pump delivers the high water volume needed for large-scale cleaning projects, while its 4,060 PSI maximum pressure cuts through stubborn dirt, grime, grease, and coatings with ease. This combination of high flow and high pressure makes it one of the most versatile industrial-grade pumps available.

Rugged Construction

Durability is a hallmark of AR pumps, and the XW3028N is no exception:

  • Brass manifold resists corrosion and provides excellent heat dissipation.

  • Ceramic plungers extend seal life and withstand extreme operating conditions.

  • 24 mm shaft ensures strong, secure compatibility with belt-driven gas or electric motors.

  • Weighing 40 lbs, the pump is robustly built for stability and long-term reliability.

This rugged construction allows the pump to withstand tough, daily use in commercial and industrial environments.

Operator-Friendly Features

The XW3028N is designed for safety, efficiency, and user control:

  • External unloader (85.300.033): Provides precise pressure regulation and simplifies servicing.

  • Adjustable soap injector (85.400.000): Allows controlled detergent application for better cleaning performance.

  • Thermal relief valve (85.300.022): Protects the pump from overheating during extended bypass operation.

  • Quick-connect brass discharge (3/8” – 85.300.108): Provides leak-free, reliable hose connections.

These features make the pump straightforward to operate while ensuring safety and longevity.

Low-RPM Advantage

Because it is a belt-drive pump, the XW3028N operates at a reduced speed of 1,750 RPM. This lower operating speed means:

  • Less heat generation

  • Reduced vibration

  • Extended service life for bearings, seals, and plungers

  • Quieter performance for operator comfort

The ability to handle inlet water temperatures up to 165°F (74°C) also makes the pump well-suited for hot water pressure washing, expanding its cleaning capability.

Maintenance and Service

Routine maintenance is simple, helping to maximize performance and reliability:

  • Requires 37 oz of 30W non-detergent oil for proper lubrication.

  • Oil checks and changes are straightforward and ensure smooth operation.

  • With robust materials and serviceable components, the pump is easy to maintain for long-term use.

Proper care ensures the XW3028N will deliver consistent results year after year.

Common Applications

The AR XW3028N Triplex Pump is built for industrial cleaning professionals and thrives in a wide range of heavy-duty applications:

  • Fleet Washing – Trucks, trailers, and heavy equipment.

  • Industrial Cleaning – Machinery, facilities, and large-scale equipment washdowns.

  • Agricultural Use – Cleaning tractors, combines, and large farm equipment.

  • Construction – Equipment washdowns and job site cleaning.

  • Surface Preparation – Stripping paint, coatings, and debris before refinishing.

  • Commercial Property Maintenance – Ideal for sidewalks, building exteriors, and large flat surfaces.

With its high GPM and powerful PSI, it excels in both efficiency and performance, saving time on big cleaning projects.

Product Specifications

  • Part #: 85.129.071

  • Manufacturer: Annovi Reverberi (AR)

  • Model: XW3028N

  • Style: Triplex, belt drive

  • Drive Type: Gas/Electric compatible

  • Max PSI: 4,060

  • Max Flow: 7.9 GPM

  • Shaft Size: 24 mm

  • RPM: 1,750

  • Unloader: External (85.300.033)

  • Soap Injector: Adjustable (85.400.000)

  • Manifold: Brass

  • Plungers: Ceramic

  • Inlet: 3/4" GHF

  • Discharge: 3/8" Brass QC (85.300.108)

  • Oil Capacity: 37 oz (30W non-detergent oil)

  • Thermal Relief Valve: 85.300.022

  • Max Inlet Temp: 74°C / 165°F

  • Weight: 40 lbs

  • Warranty: 5 Years

Trusted AR Reliability

As part of AR’s XW Series, the XW3028N represents the brand’s commitment to quality, performance, and long-term durability. Its brass manifold, ceramic plungers, external unloader, and low-RPM belt drive combine to deliver maximum output with minimal wear.

Backed by a 5-year warranty, this pump provides the professional durability and power contractors rely on for daily operation. When you need a pump that offers industry-leading performance with high flow and high PSI, the AR XW3028N Triplex Pump is built to deliver.

Frequently Asked Questions about Pressure Washers

How to store a pressure washer?

To ensure the durability of your heavy duty pressure washer:

  • Empty the gas tank to prevent fuel from degrading or clogging the engine.
  • Empty the pump and hoses of any remaining water.
  • Perform necessary maintenance before storage.
  • Store in a dry area.
  • Cover.

What is a pressure washer?

A power washer is a cleaning machine that uses a gasoline engine to power a high pressure water pump and nozzle. It’s used to clean driveways, decks, vehicles, outdoor furniture and more by spraying water at high PSI to remove dirt, grime, mold and other debris.Many models also come with a detergent tank for added cleaning power.

How does a power washer work?

A power washer works by drawing water from a connected hose and pumping it through a high pressure nozzle. The gas engine powers the pump which pressurizes the water and then expels it through the nozzle at high speed to clean the surface. The water pressure is measured in PSI (pounds per square inch) and the flow rate is measured in GPM (gallons per minute).Many models also feature adjustable water pressure settings to cater to different cleaning needs. BE makes pressure washing easy with models available for light jobs and heavy duty commercial cleaning projects.

Gas vs Electric power washers?

The main difference is that a gas pressure washer, known for its cleaning power, is powered by a gasoline engine, making it more powerful and portable, while an electric pressure washer is powered by electricity and is generally quieter and lighter.

Gas pressure washers are for heavy duty and large areas due to their durability, whereas electric pressure washers are for smaller jobs.

Your BE electric pressure washer is perfect for smaller jobs and built for portability, and we offer a wide range of electric models. Included with our electric models is a long extension cord for use anywhere around your house.

What to consider?

When choosing a gas pressure washer consider:

  • Pressure (PSI): More PSI means more cleaning power but also more potential for damaging delicate surfaces.
  • Flow Rate (GPM): More GPM means faster cleaning as more water is dispensed.
  • Engine Power: Bigger engines mean more durability and power.
  • Portability: Weight, handle design and wheel size for easier to move.
  • Nozzles: Multiple spray nozzles to adjust the spray pattern for different tasks.
  • Adjustable Nozzle: Allows for fine-tuning the spray intensity and pattern for various cleaning needs.

How much pressure do I need for?

The required pressure (PSI) and cleaning power depend on the surface you’re cleaning:

  • Light duty (car washing, outdoor furniture): 1,300-1,800 PSI.
  • Medium duty (patios, fences, decks): 2,000-3,000 PSI.
  • Heavy duty (driveways, brick walls, large equipment): 3,000+ PSI.

Many pressure washers come with adjustable pressure settings to handle different cleaning tasks effectively.

Can a pressure washing damage surfaces?

Yes, a power washer can damage surfaces if used incorrectly. High pressure water can strip paint, dent soft surfaces or even cause structural damage if the pressure is too high or the nozzle is held too close to the surface. Always use the right PSI for the material you’re cleaning and keep a safe distance from delicate surfaces.

To prevent damage, consider using a model with adjustable pressure settings.

How to maintain your pressure washer?

To ensure the durability and smooth operation of a pressure washer:

  • Change the oil as per manufacturer’s instructions.
  • Clean or replace the air filter to ensure good airflow.
  • Inspect and clean the nozzle regularly to prevent clogs.
  • Drain the gas tank if you’re storing the washer for a long time.
  • Check the hoses for leaks or damage and replace them if needed.
  • Follow regular maintenance requirements to keep the washer in optimal condition.

Can I use a pressure washer in cold weather and low water temperature?

You can use a pressure washer in cold weather but it’s more difficult. The water flow rate in the hoses and pump can freeze and damage the equipment. If you plan to use your pressure washer in cold temperatures make sure to winterize it and store it in a warm area when not in use. You can also use anti-freeze solutions for pressure washers.

Some models are designed to use hot water, which can be particularly effective for cleaning in cold weather.

Do I need any accessories?

Common accessories for power washers: