XWM2128UR Pump & Gearbox Assembly – XWM2128N / UDOR Pump, 1″ Shaft

Part Number: XWM2128UR
Category: Pressure Washer Pumps & Pump Assemblies
Type: Pump & Gearbox Assembly – XWM2128N / UDOR Gear-Drive, 5.5 GPM @ 4060 PSI

The XWM2128UR Pump & Gearbox Assembly is a factory-built, commercial-grade gear-drive solution centered around the XWM2128N / UDOR triplex pump paired with a heavy-duty gearbox for 1″ shaft engines. Engineered to deliver up to 5.55 GPM at 4060 PSI and operate at 1450 RPM, this assembly is designed for demanding professional and industrial pressure washer systems that require high flow, extreme pressure, and long service life.

With a rugged 24 mm solid pump shaft, forged internals, and smooth gear-reduced operation, the XWM2128UR minimizes vibration and wear while maximizing efficiency in continuous-duty environments. It is an ideal drop-in upgrade or replacement for engine-driven machines that need reliable, high-output performance without the maintenance overhead of belt-drive systems.

Product Specifications

• Pump Model: XWM2128N / UDOR

• Product Family: XW / XWM

• Assembly Type: Complete pump & gearbox assembly

• Pump Type: Triplex Plunger, Gear Drive

• Flow Rate: Up to 5.55 GPM (21 L/min)

• Max Pressure: 4060 PSI (280 Bar)

• Rated Speed: 1450 RPM

• Engine Shaft Requirement: 1″

• Pump Shaft Size: 24 mm Solid (N)

• Power Requirement: 15 EBHP

• Bore Diameter: 20 mm

• Stroke: 16.6 mm

• Inlet Port: 3/4″ F

• Outlet Port: 3/8″ F

• Oil Capacity: 32 oz

• Max Fluid Temperature: 140°F

• Weight: 34 lb

• Dimensions: 6″ x 6″ x 6″

• MPN: XWM2128UR

• Condition: New

Features & Benefits

• Gear-drive system for smooth, low-RPM operation and extended pump life

• High-output performance up to 5.55 GPM and 4060 PSI

• Built for 1″ shaft engines in commercial pressure washer platforms

• Heavy-duty triplex plunger construction for continuous-duty use

• Reduced vibration and wear compared to direct-drive setups

• Factory-assembled for true drop-in installation

Applications

• Engine-driven commercial pressure washers

• Gear-drive cleaning systems

• Industrial and fleet wash equipment

• Equipment repair, refurbishment, and performance upgrades

Important Notes

• Verify engine shaft size (1″), pump shaft type (24 mm solid), and RPM compatibility (1450) before ordering

• Designed for gear-reduced systems using XWM-series pumps

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