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Product / / 85.129.046B

AR RSV3G38D-F40EZ Pump – 3.0 GPM, 3,800 PSI, 1" Shaft

AR RSV3G38D-F40EZ Pump – 3.0 GPM, 3,800 PSI, 1" Shaft

Specifications

UNLOADER

Built-In

WARRANTY

3 Years

RPM

3,450

PUMP MODEL

AR RSV3G38D

PUMP TYPE

Triplex

Oil Type

30W Non Detergent

Oil Capacity

16 oz

Thermal Relief Value

85.300.022

Max Inlet Temperature

60°C / 140°F

Manifold Type

Brass

Soap Injector

Fixed

Discharge Size

3/8" Brass QC 85.300.103

Inlet Size

3/4" GHF

Plunger Piston

Ceramic

Unloader Type

Built-In

Max GPM

3.5

Shaft Size

1"

Direct Drive

Gas

Weight

14 lbs

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PRODUCT

DESCRIPTION

High-Pressure Triplex Pump with Easy Start Valve

The AR North America RSV3G38D-F40EZ Pump (Bare Pump Part #85.120.046) is a professional-grade triplex direct-drive gas pump designed to deliver high pressure, reliable performance, and long-term durability. With a maximum output of 3,800 PSI at 3.0 GPM, this pump is engineered for serious cleaning applications where consistent power and efficiency are critical.

Featuring an Easy Start Valve to make starting the machine smoother, a brass head for improved heat dissipation, and ceramic plungers for superior wear resistance, the RSV3G38D-F40EZ combines rugged construction with advanced design. Backed by a 3-year warranty, this pump is ideal for both commercial and heavy-duty residential users who demand top performance.

Key Features

  • Bare Pump Part #: 85.120.046

  • Pump Manufacturer: Annovi Reverberi (AR)

  • Pump Model: RSV3G38D-F40EZ

  • Pump Style: Triplex, direct-drive gas

  • Max PSI: 3,800

  • Max GPM: 3.0

  • Shaft Size: 1" horizontal, hollow shaft

  • Unloader Type: Built-in

  • Plunger (Piston): Ceramic for maximum durability

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

  • Discharge Size: 3/8" Brass QC (85.300.103)

  • Soap Injector: Fixed

  • Manifold Type: Brass for strength and heat dissipation

  • RPM: 3,450

  • Max Inlet Temp: 60°C / 140°F

  • Thermal Relief Valve: 85.300.022 included

  • Oil Capacity: 16 oz

  • Oil Type: 30W non-detergent oil

  • Weight: 14 lbs

  • Warranty: 3 Years

  • Note: The actual product may vary from the images shown on the website.

Professional Triplex Design

The RSV3G38D-F40EZ is built around a triplex plunger system, a proven design that offers smoother performance, reduced vibration, and longer life compared to axial pumps. With three ceramic plungers, the pump is engineered to resist heat and abrasion, ensuring reliable operation under heavy workloads.

With its maximum pressure of 3,800 PSI, the RSV3G38D-F40EZ is designed for applications that demand serious cleaning power. Its flow rate of 3.0 GPM provides enough water volume for efficient coverage, making it versatile for both precision cleaning and larger surface areas.

The 1" hollow horizontal shaft allows for compatibility with a wide range of gas-powered engines, making it an excellent replacement option for professional-grade pressure washers.

Easy Start Valve

One standout feature of the RSV3G38D-F40EZ is its Easy Start Valve. This integrated component reduces the effort required to start your machine by relieving pressure during startup. This helps prevent engine strain, extends starter life, and ensures smoother operation.

Rugged Brass Manifold and Ceramic Plungers

The pump’s brass manifold provides superior strength and corrosion resistance compared to aluminum alternatives. It also enhances heat dissipation, which protects seals and extends overall pump life.

The ceramic plungers further enhance durability, providing excellent resistance to heat and abrasion, particularly under continuous or demanding use. This combination of brass and ceramic materials ensures that the pump can withstand the stresses of high-pressure operation.

Convenience and Integrated Features

The RSV3G38D-F40EZ includes a number of features that simplify operation and maintenance:

  • Built-in unloader ensures automatic pressure regulation and system protection.

  • Fixed soap injector allows operators to easily apply detergents and chemicals with low-pressure nozzles.

  • Brass quick-connect discharge fitting (3/8”) provides a secure, leak-free connection to hoses and accessories.

  • Thermal relief valve (85.300.022) prevents overheating during extended bypass operation by purging hot water and replacing it with cooler water.

Maintenance and Reliability

With an oil capacity of 16 oz, the pump requires 30W non-detergent oil for lubrication. Regular oil checks and scheduled changes help maximize service life and maintain smooth operation.

The pump is designed to handle water inlet temperatures up to 140°F (60°C), giving it additional flexibility compared to many residential models.

At 14 lbs, the RSV3G38D-F40EZ is ruggedly built while still manageable for installation and maintenance.

Common Applications

With its professional-grade design and high-pressure output, the AR RSV3G38D-F40EZ Pump Assembly is suitable for a wide range of demanding applications, including:

  • Construction Sites – Blasting dirt, mud, and concrete residue from equipment.

  • Fleet and Vehicle Washing – Handling trucks, trailers, buses, and heavy-duty vehicles.

  • Agricultural Use – Cleaning tractors, implements, and farm machinery.

  • Residential and Commercial Property Maintenance – Stripping stains, mold, and grime from siding, decks, driveways, and patios.

  • Industrial Cleaning Tasks – Prepping surfaces for painting or removing stubborn buildup.

This versatility makes it a trusted replacement for contractors, property managers, and power users alike.

Product Specifications

  • Manufacturer: Annovi Reverberi (AR)

  • Model: RSV3G38D-F40EZ

  • Part #: 85.120.046

  • Style: Triplex, direct-drive gas

  • Max Pressure: 3,800 PSI

  • Max Flow: 3.0 GPM

  • Shaft Size: 1” hollow horizontal shaft

  • Unloader: Built-in

  • Soap Injector: Fixed

  • Manifold: Brass

  • Plunger Material: Ceramic

  • Inlet Connection: 3/4” GHF

  • Discharge Connection: Brass QC 3/8” (85.300.103)

  • RPM: 3,450

  • Oil Capacity: 16 oz (30W non-detergent oil)

  • Thermal Relief Valve: 85.300.022

  • Max Inlet Temp: 60°C / 140°F

  • Weight: 14 lbs

  • Warranty: 3 Years

Backed by AR Quality

Annovi Reverberi (AR) has been manufacturing high-quality pumps for decades, combining Italian engineering with global expertise. The RSV3G38D-F40EZ Pump Assembly continues this tradition with a triplex design, brass manifold, ceramic plungers, and Easy Start Valve for reliable, long-lasting performance.

Backed by a 3-year warranty, this pump is an investment in durability and peace of mind.

When you need maximum pressure, smooth starting, and rugged construction, choose the AR RSV3G38D-F40EZ Pump Assembly—engineered to perform, built to last.

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: