Part Number: RMW2G25D
Category: Pressure Washer Pumps → Axial Cam Pumps → Vertical Pressure Washer Pumps
Type: AR RMW2G25D Vertical Pressure Washer Pump – 2.0 GPM 2500 PSI 7/8" Shaft Brass Head

The AR RMW2G25D Vertical Pressure Washer Pump (Part #RMW2G25D) is a genuine OEM axial cam pressure washer pump engineered for residential and light commercial cleaning applications. Built by Annovi Reverberi (AR), this direct-drive vertical pump features a durable forged brass pump head and delivers up to 2.2 GPM at 2,500 PSI, making it an excellent replacement for compatible gas-powered pressure washers equipped with a 7/8-inch vertical shaft engine.

Key Features & Benefits

• Genuine AR (Annovi Reverberi) OEM pressure washer pump
• Part Number: RMW2G25D
• Vertical axial cam pressure washer pump
• Durable forged brass pump head
• Delivers up to 2.2 GPM at 2,500 PSI
• Designed for direct engine mounting
• 7/8-inch vertical hollow shaft
• Operates at 3,400 RPM
• Compatible with engines up to 5 HP
• Compact, lightweight design
• OEM-quality performance and durability
• Ideal replacement for residential and light commercial pressure washers

Technical Specifications

Part Number: RMW2G25D

Pump Model: RMW2G25D (Brass)

Manufacturer: AR (Annovi Reverberi)

Product Type: Vertical Axial Cam Pressure Washer Pump

Pump Head Material: Forged Brass

Maximum Flow Rate: 2.2 GPM

Maximum Pressure: 2,500 PSI

Maximum Pump Speed: 3,400 RPM

Horsepower: 5 HP

Shaft Size: 7/8" Vertical Hollow Shaft

Pump Orientation: Vertical

Weight: 8 lbs

OEM Replacement: Yes

Compatible Applications

Designed for use with compatible pressure washer systems featuring:

• 7/8-inch vertical engine shafts
• Engines up to 5 HP
• Residential gas-powered pressure washers
• Light commercial cleaning equipment
• Pressure washer pump replacement projects
• OEM equipment repairs

Always verify shaft size, mounting bolt pattern, engine horsepower, and pressure/flow requirements before ordering.

Function of the Vertical Pressure Washer Pump

The RMW2G25D pump helps:

• Deliver up to 2.2 GPM of water flow
• Generate operating pressures up to 2,500 PSI
• Restore pressure washer performance
• Provide dependable cleaning power for residential applications
• Replace worn or damaged OEM pumps
• Improve overall cleaning efficiency

Its direct-drive vertical shaft design allows for quick installation on compatible gas-powered pressure washers.

Common Signs Replacement Is Needed

Replace the pump if you notice:

• Reduced operating pressure
• Decreased water flow
• Water or oil leaks
• Excessive operating noise
• Cracked or damaged brass pump head
• Loss of pumping performance
• Excessive internal wear

Replacing a worn pump restores cleaning performance while minimizing equipment downtime.

Installation & Service Notes

• Shut down the pressure washer and disconnect the spark plug before servicing.
• Relieve all system pressure.
• Verify compatibility with the engine shaft size, mounting pattern, horsepower, and pressure requirements.
• Remove the existing pump and inspect the engine shaft for wear or corrosion.
• Install the replacement pump according to the manufacturer's specifications.
• Connect the water inlet and high-pressure outlet.
• Prime the pump with water before startup.
• Verify proper operation and inspect for leaks after installation.

Important: Never operate the pump without an adequate water supply. Running the pump dry can quickly damage internal components and significantly reduce pump service life.

Maintenance Recommendations

• Inspect the pump regularly for water or oil leaks.
• Maintain a clean inlet water supply using an appropriate filter.
• Flush the pump after use when pumping dirty or corrosive water.
• Inspect fittings and mounting hardware periodically.
• Use only genuine OEM AR replacement parts and recommended lubricants to maintain optimum performance, reliability, and long service life.