Annovi Reverberi XWAM55G40N-SX Reverse Rotation Commercial Pressure Washer Pump
5.5 GPM at 4,000 PSI for Specialized Left-Hand Drive Systems
The XWAM55G40N-SX is a commercial-grade, reverse rotation pressure washer pump engineered for systems that require left-hand shaft drive configurations. Delivering 5.5 GPM at 4,000 PSI, this heavy-duty triplex plunger pump ensures reliable high-pressure output for industrial operators, contractors, and facilities with specialized equipment setups.
Designed to run at 1,750 RPM with a 24mm left-hand solid shaft, it integrates seamlessly into reverse-drive motors and engines while maintaining the same durability and performance as its standard right-hand counterpart.
Reverse-Drive System Compatibility
Purpose-built for reverse rotation applications, the XWAM55G40N-SX fits systems where engine or motor orientation requires a left-hand shaft pump. It prevents costly retrofits and supports optimal alignment in:
- Truck-mounted wash rigs
- Trailer units
- Custom wash stations
Key Specifications
| Flow Rate | 5.5 GPM |
| Pressure Rating | 4,000 PSI |
| Operating Speed | 1,750 RPM |
| Shaft Size | 24mm solid shaft, left-hand |
| Pump Type | Triplex plunger |
| Plungers | Ceramic for abrasion and heat resistance |
| Seals | Viton for chemical and temperature durability |
| Valves | Stainless steel for long service life |
| Lubrication | Oil-bath crankcase w/ sight glass & vented dipstick |
| Warranty | 5-year commercial |
What’s Included
- Pre-filled break-in oil for quick installation
- Oil sight glass for easy oil checks
- Vented dipstick to balance internal pressure
- Operator manual and detailed schematic
- Factory performance testing results
- 5-year commercial warranty with nationwide service support
How the XWAM55G40N-SX Works
This pump features a precision triplex plunger system using ceramic plungers and stainless steel valves to generate high-pressure, pulseless water flow at 5.5 GPM. The left-hand solid shaft ensures proper function in reverse-rotation setups where standard pumps cannot be used.
Benefits of XWAM55G40N-SX
- Reverse rotation shaft: Left-hand 24mm solid shaft for compatibility with reverse-drive systems
- Industrial performance: 5.5 GPM @ 4,000 PSI
- Premium components: Ceramic plungers & Viton seals for long life
- Easy maintenance: Sight glass and vented dipstick
- Commercial warranty: Factory-tested and backed by 5-year coverage
Ideal Applications
- Truck-mounted cleaning rigs
- Food & beverage sanitation (USDA-compliant facilities)
- Parking garage and concrete maintenance
- Pipe and industrial drain cleaning systems
- High-pressure trailer units with non-standard engine orientations
- Rental fleets requiring versatile mounting options
Why Choose the XWAM55G40N-SX?
The XWAM55G40N-SX offers the same rugged performance as the standard XWAM55G40N—5.5 GPM at 4,000 PSI—with the added advantage of reverse-rotation compatibility. It installs without modifications, keeps maintenance simple, and delivers long-lasting power in demanding environments.
Factory-tested, pre-oiled, and backed by U.S.-based support, this pump is built to keep your operation running strong.



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