SLPRKA4G40-402 Pump Assembly – RKA4G40 Pump w/ Plumbing

Part Number: SLPRKA4G40-402
Category: Pressure Washer Pumps & Pump Assemblies
Type: Pump Assembly w/ Plumbing – RKA4G40 Belt-Drive, 4.0 GPM @ 4000 PSI

The Pressure-Pro SLPRKA4G40-402 Pump Assembly is a factory-built, fully plumbed replacement centered around the AR RKA4G40NL belt-drive pump. Delivering 4.0 GPM at 4000 PSI and engineered for 1750 RPM operation, this assembly is designed for commercial belt-driven pressure washer systems that demand maximum 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: AR RKA4G40NL

• Assembly Type: Complete pump assembly with plumbing

• Pump Type: Triplex Plunger, Belt Drive

• Flow Rate: 4.0 GPM

• Max Pressure: 4000 PSI

• Shaft Size: 24 mm

• Rated Speed: 1750 RPM

• Unloader: VRT3-310EZ (included)

• Weight: 22.8 lb

• Manufacturer: Pressure-Pro

• MPN: SLPRKA4G40-402

• Condition: New

Features & Benefits

• Genuine Pressure-Pro OEM pump assembly

• Factory-plumbed for fast, drop-in replacement

• Belt-drive configuration for smoother, quieter operation

• Optimized for low-speed commercial systems

• Includes VRT3-310EZ unloader for precise pressure control

• High-output 4.0 GPM / 4000 PSI performance

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 (1750) before ordering

• Designed for systems using RKA4G40 belt-drive pumps

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