AR RSV 23G33D Pump – 2.5 GPM, 3,800 PSI, 3/4" Shaft

Professional-Grade Pump for Demanding Cleaning Applications

The AR RSV 23G33D Pump is a powerful triplex direct-drive gas pump designed for pressure washers that demand higher pressure and long-term reliability. Delivering up to 3,800 PSI at 2.5 GPM, this pump is engineered for contractors, commercial users, and serious homeowners who require consistent cleaning performance.

Built by Annovi Reverberi (AR), one of the world’s leading pump manufacturers, the RSV 23G33D combines ceramic plungers, a brass manifold, and a built-in unloader into a rugged package designed for durability. With a 3/4" shaft size and 3-year warranty, it’s a trusted solution for restoring or upgrading gas-powered pressure washers.

Key Features

• Pump Manufacturer: Annovi Reverberi (AR)

• Pump Model: RSV 23G33D

• Pump Style: Triplex, direct-drive gas

• Max PSI: 3,800

• Max GPM: 2.5

• Shaft Size: 3/4"

• Unloader Type: Built-in

• Plunger (Piston): Ceramic for superior wear resistance

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

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

• Soap Injector: Fixed for detergent applications

• Manifold Type: Brass for strength and corrosion resistance

• RPM: 3,450

• Max Inlet Temp: 60°C / 140°F

• Thermal Relief Valve: N/A

• Oil Capacity: 16 oz

• Oil Type: 30W non-detergent oil

• Weight: 14 lbs

• Warranty: 3 Years

Engineered for Professional Performance

The RSV 23G33D is built on AR’s proven triplex plunger pump design, which offers smoother operation and longer life than standard axial cam pumps. Triplex pumps use three high-strength plungers to deliver consistent pressure and flow, making them the preferred choice for heavy-duty and commercial applications.

With a maximum output of 3,800 PSI at 2.5 GPM, this pump provides the cleaning power needed for tough jobs like paint stripping, surface preparation, heavy equipment washing, and industrial-grade property maintenance.

The ceramic plungers provide exceptional wear resistance and durability, while the brass manifold ensures strength, corrosion resistance, and long service life. Together, these materials deliver reliability under continuous operation.

Built-In Features for Ease of Use

The pump includes a built-in unloader, simplifying installation and reducing the need for external components. The unloader regulates water flow and pressure, providing smooth operation and helping extend pump life.

A fixed soap injector is integrated into the pump for detergent application. This allows users to apply soaps or degreasers directly through the system when using low-pressure spray tips, making it easier to cut through oil, grease, or stubborn grime.

The brass quick-connect discharge fitting (3/8”) ensures a secure connection to standard pressure washer hoses, reducing leaks and setup time.

Durability and Maintenance

The RSV 23G33D is designed to withstand demanding use while being easy to maintain. It requires 16 oz of 30W non-detergent oil, which lubricates the moving components and helps maximize service life. Routine oil checks and changes ensure long-term reliability.

With a maximum inlet water temperature of 140°F (60°C), the pump can handle warmer water inputs than many residential pumps, offering greater flexibility for different applications.

At 14 lbs, this pump is built heavier than consumer-grade axial pumps, reflecting its rugged construction and suitability for frequent or professional use.

While the RSV 23G33D does not include a thermal relief valve, AR recommends installing one when used in applications with extended bypass times to help prevent overheating.

Common Applications

The AR RSV 23G33D Pump is designed for high-performance gas-powered pressure washers and is well-suited for both residential and commercial users who need maximum cleaning power. Typical applications include:

• Contractor Cleaning Jobs – Handling paint stripping, graffiti removal, and prep work.

• Construction Equipment – Blasting dirt, mud, and grease from job site machinery.

• Fleet and Vehicle Washing – Cleaning trucks, trailers, RVs, and heavy vehicles.

• Agriculture and Farm Use – Washing tractors, tools, and structures.

• Large Property Maintenance – Restoring concrete, siding, and outdoor surfaces.

Its 3/4” shaft size makes it compatible with a wide range of small gas engines, offering versatility as a replacement or upgrade pump.

Product Specifications

• Manufacturer: Annovi Reverberi (AR)

• Model: RSV 23G33D

• Style: Triplex, direct-drive gas

• Max Pressure: 3,800 PSI

• Max Flow Rate: 2.5 GPM

• Shaft Size: 3/4”

• RPM: 3,450

• Unloader: Built-in

• Soap Injector: Fixed

• Manifold Material: Brass

• Plunger Material: Ceramic

• Inlet Connection: 3/4” GHF

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

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

• Max Inlet Temp: 60°C / 140°F

• Thermal Relief Valve: Not included

• Weight: 14 lbs

• Warranty: 3 Years

Backed by AR Quality

Annovi Reverberi pumps are trusted worldwide for their combination of Italian engineering, durable materials, and long service life. The RSV 23G33D continues this tradition, providing a triplex design, brass manifold, and ceramic plungers that make it a professional-grade choice for demanding pressure washer applications.

With a 3-year warranty, this pump is built for reliability and backed by AR’s reputation for quality.

When you need to replace or upgrade your pump, trust the AR RSV 23G33D Pump—built for durability, engineered for performance, and ready to take on the toughest cleaning challenges.