SLPRK18.28HN-402 Belt-Drive Pump Assembly – RK18.28HN Pump w/ Plumbing

Part Number: SLPRK18.28HN-402
Category: Pressure Washer Pumps & Pump Assemblies
Type: Belt-Drive Pump Assembly w/ Plumbing – RK18.28HN, 4.75 GPM @ 4000 PSI

The Pressure-Pro SLPRK18.28HN-402 Pump Assembly is a factory-built, fully plumbed replacement centered around the RK18.28HN belt-drive pump. Delivering up to 4.75 GPM at 4000 PSI and engineered for 1450 RPM operation, this assembly is designed for commercial belt-driven pressure washer systems that demand high output 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: RK18.28HN

• Assembly Type: Complete pump assembly with plumbing

• Pump Type: Triplex Plunger, Belt Drive

• Flow Rate: 4.75 GPM

• Max Pressure: 4000 PSI

• Shaft Size: 24 mm Solid

• Rated Speed: 1450 RPM

• Unloader: VRT3-310EZ (included)

• Manufacturer: Pressure-Pro

• MPN: SLPRK18.28HN-402

• Condition: New

Features & Benefits

• Genuine Pressure-Pro OEM pump assembly

• Factory-plumbed for fast, drop-in replacement

• Ultra-low RPM belt-drive design for extended pump life

• High-output performance for demanding commercial use

• Smooth, low-vibration operation

• 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 solid), drive type (belt), and RPM compatibility (1450) before ordering

• Designed for systems using RK18.28HN belt-drive pumps

• Rails not included

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