SLPHP5535-402 Pump Assembly – HP5535 Pump w/ Plumbing, VRT Unloader

Part Number: SLPHP5535-402
Category: Pressure Washer Pumps & Pump Assemblies
Type: Pump Assembly w/ Plumbing – HP5535 Belt-Drive, 5.5 GPM @ 3500 PSI

The Pressure-Pro SLPHP5535-402 Pump Assembly is a factory-built, fully plumbed replacement centered around the HP5535 belt-drive pump, engineered for high-output commercial pressure washer systems. Delivering up to 5.5 GPM at 3500 PSI and operating at a low 1125 RPM, this assembly is designed for smooth performance, reduced wear, and extended service life in demanding environments. Supplied complete with plumbing and a VRT unloader, it provides a true drop-in solution for restoring OEM performance while maximizing durability and uptime.

Product Specifications

• Pump Model: HP5535

• Assembly Type: Complete pump assembly with plumbing

• Pump Type: Triplex Plunger, Belt Drive

• Flow Rate: 5.5 GPM

• Max Pressure: 3500 PSI

• Rated Speed: 1125 RPM

• Shaft Size: 0.945″ (24 mm)

• Maximum Inlet Pressure: 125 PSI

• Maximum Inlet Vacuum: 9 ft. water (7.9 in. Hg)

• Plunger Bore: 0.787″ (20 mm)

• Plunger Stroke: 0.630″ (16 mm)

• Crankcase Oil Capacity: 40.6 oz

• Maximum Fluid Temperature: 165°F

• Inlet Port Thread: 1/2–14 BSPP-F

• Discharge Port Thread: 3/8–19 BSPP-F

• Weight: 32 lb

• Dimensions: 12.2″ x 9.2″ x 6.9″

• Unloader: VRT (included)

• Manufacturer: Pressure-Pro

• MPN: SLPHP5535-402

• Condition: New

Features & Benefits

• Genuine Pressure-Pro OEM pump assembly

• Factory-plumbed for fast, drop-in replacement

• Low-RPM belt-drive design for extended pump life

• High-output 5.5 GPM / 3500 PSI performance

• Heavy-duty triplex plunger construction

• Includes VRT unloader for precise pressure control

• Ideal for continuous-duty commercial operation

Applications

• Belt-driven commercial pressure washers

• High-output cleaning systems

• Fleet wash and industrial equipment

• 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 (1125) before ordering

• Designed for systems requiring high-flow, high-pressure belt-drive pumps

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