SLPHP4040-402 Pump Assembly – HP4040 Pump, 4.0 GPM @ 4000 PSI w/ Plumbing, VRT3-310EZ

Part Number: SLPHP4040-402
Category: Pressure Washer Pumps & Pump Assemblies
Type: Pump Assembly w/ Plumbing – HP4040 Belt-Drive, 4.0 GPM @ 4000 PSI

The Pressure-Pro SLPHP4040-402 Pump Assembly is a factory-built, fully plumbed replacement centered around the HP4040 belt-drive pump. Delivering 4.0 GPM at 4000 PSI and engineered for 1450 RPM operation, this assembly is designed for commercial belt-driven pressure washer systems that demand high cutting power with smooth, long-life performance. Supplied complete with plumbing and a VRT3-310EZ unloader, it provides a true drop-in solution to restore OEM performance while minimizing downtime in demanding cleaning environments.

Product Specifications

• Pump Model: HP4040

• Manufacturer: HP

• Assembly Type: Complete pump assembly with plumbing

• Pump Type: Triplex Plunger, Belt Drive

• Flow Rate: 4.0 GPM

• Max Pressure: 4000 PSI

• Rated Speed: 1450 RPM

• Shaft Size: 24 mm

• Unloader: VRT3-310EZ (included)

• Manufacturer (Assembly): Pressure-Pro

• MPN: SLPHP4040-402

• Condition: New

Features & Benefits

• Genuine Pressure-Pro OEM pump assembly

• Factory-plumbed for fast, drop-in replacement

• High-output 4000 PSI performance for heavy-duty cleaning

• Smooth, low-RPM belt-drive operation for extended pump life

• Commercial-grade triplex plunger construction

• Includes VRT3-310EZ unloader for precise pressure control

Applications

• Belt-driven commercial pressure washers

• Industrial and fleet-wash systems

• High-demand cleaning environments

• Replacement pump for compatible Pressure-Pro units

• Equipment repair, refurbishment, and upgrades

Important Notes

• Verify shaft size (24 mm), drive type (belt), and RPM compatibility (1450) before ordering

• Designed for systems using HP4040 belt-drive pumps

• Final operating PSI and GPM depend on pulley ratio, motor, and overall system configuration