RMW2.5G28 Axial Pressure Washer Pump – 2.5 GPM @ 2800 PSI, 3400 RPM, 7/8″ Hollow Shaft, Vertical

Part Number: RMW2.5G28
Category: Pressure Washer Pumps
Type: Axial Direct-Drive Pump – RMW2.5G28, 2.5 GPM @ 2800 PSI (Vertical)

The RMW2.5G28 Axial Pressure Washer Pump is a compact, high-speed direct-drive pump engineered for gas-powered pressure washers operating at 3400 RPM. Delivering 2.5 GPM at up to 2800 PSI, this vertical-mount axial pump features a 7/8″ hollow shaft for quick, direct engine installation. Lightweight and space-efficient, it’s an ideal replacement solution for residential and light-duty commercial units where simplicity, affordability, and fast serviceability are key.

Product Specifications

• Pump Model: RMW2.5G28

• Pump Type: Axial Cam, Direct Drive (Gas)

• Mounting Orientation: Vertical

• Flow Rate: 2.5 GPM

• Max Pressure: 2800 PSI

• Rated Speed: 3400 RPM

• Shaft Size: 7/8″ Hollow

• Bore Diameter: 12 mm

• Stroke: 9.7 mm

• Weight: 7.7 lb

• Condition: New

Features & Benefits

• Compact axial design for lightweight, portable pressure washers

• 7/8″ hollow shaft for fast, direct engine mounting

• Optimized for high-speed 3400 RPM operation

• Vertical orientation for common residential washer layouts

• Cost-effective replacement pump

• Reliable performance for everyday cleaning tasks

Applications

• Gas-powered residential pressure washers

• Light-duty commercial cleaning equipment

• Replacement pump for compatible vertical direct-drive systems

• Portable pressure washer repairs and rebuilds

Important Notes

• Verify shaft type (7/8″ hollow), vertical orientation, and engine RPM compatibility (3400) before ordering

• Designed for direct-drive gas engines

• Final operating PSI and GPM depend on engine speed and overall system configuration