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Product / / 85.129.006B

AR RG1528HN Triplex Pump – 4.0 GPM, 4,400 PSI, 24 mm Shaft

AR RG1528HN Triplex Pump – 4.0 GPM, 4,400 PSI, 24 mm Shaft

Specifications

UNLOADER

External 85.300.037

WARRANTY

5 Years

RPM

1,450

PUMP MODEL

AR RG1528HN

PUMP TYPE

Triplex

Oil Type

30W Non Detergent

Oil Capacity

19 oz

Thermal Relief Value

85.300.022

Max Inlet Temperature

60°C / 140°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 85.300.037

Max GPM

4.0

Shaft Size

24 mm

Weight

20 lbs

Belt Drive

Gas / Electric

View full details

PRODUCT

DESCRIPTION

Heavy Duty Belt Drive Pump for Cleaning

The AR RG1528HN Triplex Pump Assembly (Bare Pump Part #85.120.006) is a professional grade belt-drive pump built to last in industrial and commercial cleaning applications. With 4,400 PSI at 4.0 GPM this pump has high pressure and steady flow for demanding applications like fleet washing, agriculture, construction and industrial maintenance.

Made by Annovi Reverberi (AR) one of the most recognized pump manufacturers in the world, the RG1528HN has a triplex plunger design, brass manifold, ceramic plungers and external unloader system for precision pressure control and long life. Operating at 1,450 RPM for reduced wear and quieter operation and backed by a 5 year warranty this pump is designed to give you years of service under the toughest conditions.

Features

  • Bare Pump Part #: 85.120.006

  • Pump Manufacturer: Annovi Reverberi (AR)

  • Pump Model: RG1528HN

  • Pump Style: Triplex, belt-drive

  • Drive Type: Gas/Electric compatible

  • Max Pressure: 4,400 PSI

  • Max Flow Rate: 4.0 GPM

  • Shaft Size: 24 mm

  • Unloader Type: External (85.300.037)

  • Plunger (Piston): Ceramic for durability and heat resistance

  • 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: 1,450 (low-speed operation)

  • Max Inlet Temp: 60°C / 140°F

  • Thermal Relief Valve: Not included

  • Oil Capacity: 19 oz

  • Oil Type: 30W non-detergent oil

  • Weight: 20 lbs

  • Warranty: 5 Years

Triplex Pump for Professional Use

The triplex plunger design gives smoother performance, better efficiency and longer life than axial pumps. With three ceramic plungers the RG1528HN resists heat and wear, extends seal life and gives consistent performance under high pressure use.

With 4,400 PSI of pressure and 4.0 GPM of water flow this pump can handle the toughest jobs – from stripping paint and removing heavy grime to preparing surfaces for refinishing. The belt-drive system allows for low-speed operation at 1,450 RPM which reduces vibration, extends bearing and seal life and makes the pump quieter during operation.

Heavy Duty Construction

The AR RG1528HN Pump is built with heavy duty materials for daily use in demanding environments:

  • Brass manifold resists corrosion and dissipates heat.

  • Ceramic plungers provides excellent abrasion resistance and withstand high operating temperatures.

  • 24 mm solid shaft ensures compatibility with belt-driven systems powered by gas or electric motors.

  • Weighs 20 lbs for a tough build that’s still manageable to install.

This heavy duty construction makes the RG1528HN a popular choice for professional operators in construction, agriculture and industrial cleaning.

Operator Friendly Features

This pump has the features for high performance and ease of use:

  • External unloader (85.300.037): Gives precise pressure control and makes servicing easier.

  • Adjustable soap injector (85.400.000): Allows for flexible chemical and detergent application for better cleaning.

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

Note: This model does not include thermal relief valve. Operators should ensure proper bypass operation and cooling cycles to protect the pump.

Low RPM Advantage

Running at 1,450 RPM the RG1528HN runs cooler and quieter than high-speed pumps, reduces wear on critical components and extends the pump’s life. Low-speed operation also gives the operator more comfort and efficiency in continuous-duty applications.

Easy Maintenance

Keeping the pump in top shape is simple:

  • Requires 19 oz of 30W non-detergent oil for lubrication.

  • Oil checks and changes are easy and cost-effective maintenance steps to ensure long-term reliability.* Handles water inlet temperatures up to 140°F (60°C) for versatility in many cleaning applications.

Regular maintenance ensures peak performance and extends service life especially in professional use.

Applications

The AR RG1528HN Triplex Pump is for professionals in multiple industries:

  • Industrial Cleaning – Machinery, shop floors, heavy equipment.

  • Fleet Washing – Trucks, trailers, buses, large vehicles.

  • Agriculture – Tractors, harvesters, farm machinery.

  • Construction – Equipment, tools, on-site surfaces.

  • Property Maintenance – High-pressure cleaning of sidewalks, siding, decks, building exteriors.

  • Surface Preparation – Stripping paint, coatings, mold, grime before refinishing.

With high PSI, strong flow and belt-drive efficiency it’s one of the most versatile and durable professional pumps available.

Product Details

  • Part#: 85.120.006

  • Manufacturer: Annovi Reverberi (AR)

  • Model: RG1528HN

  • Style: Triplex, belt drive

  • Drive Type: Gas/Electric compatible

  • Max Pressure: 4,400 PSI

  • Max Flow Rate: 4.0 GPM

  • Shaft Size: 24 mm

  • RPM: 1,450

  • Unloader: External (85.300.037)

  • Soap Injector: Adjustable (85.400.000)

  • Manifold Material: Brass

  • Plunger Material: Ceramic

  • Inlet Connection: 3/4” GHF

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

  • Oil Capacity: 19 oz (30W non-detergent oil)

  • Thermal Relief Valve: Not included

  • Max Inlet Temp: 60°C / 140°F

  • Weight: 20 lbs

  • Warranty: 5 Years

AR Quality

Annovi Reverberi (AR) is a world-renowned manufacturer of innovative pumps. The RG1528HN Triplex Pump continues this tradition with low-RPM belt drive, ceramic plungers, brass manifold and external unloader system. 5 Years warranty. AR quality. For professionals who need high pressure, strong flow and long life.

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: