Part Number: RCA3G25E
Category: Pressure Washer Pumps → Triplex Pumps → Electric Pressure Washer Pumps
Type: AR RCA3G25E Electric Pressure Washer Pump – 3.0 GPM 2500 PSI 5/8" Shaft Flange Mount

The AR RCA3G25E Electric Pressure Washer Pump (Part #RCA3G25E) is a genuine OEM triplex plunger pump engineered for professional electric pressure washer systems. Designed for 1,750 RPM electric motor applications, this heavy-duty pump features a 5/8-inch hollow shaft with electric flange mount, making it an ideal replacement for commercial and industrial pressure washers requiring dependable low-speed operation.

Key Features & Benefits

• Genuine AR (Annovi Reverberi) OEM triplex plunger pump
• Part Number: RCA3G25E
• Designed for 1,750 RPM electric motor applications
• High-efficiency forged brass pump head
• 5/8-inch hollow shaft with electric flange mount
• Delivers up to 3.0 GPM
• Rated for up to 2,500 PSI
• Stainless steel check valves
• Dual 1/2" FPT water inlets
• Dual 3/8" FPT high-pressure outlets
• Side-mounted valve seat O-ring design
• Thicker ceramic plungers help reduce thermal shock
• Low-pressure seals with integrated scraper
• Two-piece piston guides for improved durability
• Larger connecting rod bearing surfaces for increased load capacity
• Large sight glass for easy oil level inspection
• OEM-quality construction for commercial use

Technical Specifications

Part Number: RCA3G25E

Manufacturer: AR (Annovi Reverberi)

Product Type: Electric Triplex Pressure Washer Pump

Maximum Flow Rate: 3.0 GPM

Maximum Pressure: 2,500 PSI

Operating Speed: 1,750 RPM

Horsepower: 3.5 HP

Shaft Size: 5/8" Hollow Shaft

Mounting Style: Electric Flange Mount

Pump Head Material: Forged Brass

Water Inlets: Dual 1/2" FPT

High-Pressure Outlets: Dual 3/8" FPT

Valve Material: Stainless Steel

Oil Capacity: 9.81 fl. oz.

Weight: 11 lbs

OEM Replacement: Yes

Compatible Applications

Designed for use with compatible electric pressure washer systems featuring:

• 5/8-inch hollow shaft electric motors
• Electric flange-mounted pump configurations
• 1,750 RPM motor applications
• Commercial electric pressure washers
• Industrial cleaning equipment
• Equipment replacement and repair projects
• OEM equipment installations

Always verify shaft size, flange mounting pattern, motor horsepower, operating speed, and pressure requirements before ordering.

Function of the Electric Pressure Washer Pump

The RCA3G25E pump helps:

• Deliver up to 3.0 GPM of water flow
• Produce operating pressures up to 2,500 PSI
• Provide smooth, low-speed pump operation
• Deliver reliable cleaning performance for commercial applications
• Improve pump efficiency through premium internal components
• Extend equipment service life with heavy-duty construction

Its triplex plunger design provides excellent durability, smoother operation, and longer service life than typical axial cam pumps.

Common Signs Replacement Is Needed

Replace the pump if you notice:

• Reduced operating pressure
• Decreased water flow
• Water or oil leaks
• Excessive operating noise
• Damaged ceramic plungers
• Cracked or damaged pump head
• Excessive internal wear
• Declining cleaning performance

Replacing a worn pump restores pressure washer performance while reducing equipment downtime.

Installation & Service Notes

• Disconnect electrical power before servicing.
• Relieve all system pressure.
• Verify compatibility with the motor shaft, flange mount, RPM, and horsepower.
• Fill the crankcase with the manufacturer's recommended pump oil before operation if required.
• Install the pump according to AR specifications.
• Connect the water inlet and discharge plumbing.
• Prime the pump with water before startup.
• Inspect for leaks and verify proper operating pressure after installation.

Important: Never operate the pump without an adequate water supply. Running the pump dry can quickly damage plungers, seals, and valves.

Maintenance Recommendations

• Maintain the oil level using the large sight glass.
• Change pump oil according to AR's recommended maintenance intervals.
• Inspect seals, valves, and fittings during routine service.
• Use clean, filtered inlet water to minimize internal wear.
• Flush the pump after use when handling dirty or corrosive water.
• Use only genuine OEM AR replacement parts and approved lubricants to maintain maximum performance, reliability, and long service life.