SLP5CP3120G1-402 Pump Assembly – 5CP3120 Gear Pump w/ Plumbing

Part Number: SLP5CP3120G1-402
Category: Pressure Washer Pumps & Pump Assemblies
Type: Pump Assembly w/ Plumbing – 5CP3120 Gear-Drive, 4.5 GPM @ 3500 PSI

The Pressure-Pro SLP5CP3120G1-402 Pump Assembly is a factory-built, fully plumbed replacement centered around the 5CP3120 gear-drive pump. Delivering 4.5 GPM at 3500 PSI and engineered for 1645 RPM operation, this assembly is designed for engine-driven pressure washer systems utilizing a 1″ engine shaft. Featuring a 24 mm pump shaft and supplied complete with plumbing and a VRT3-310EZ unloader, it provides a true drop-in solution that efficiently transfers engine power while delivering smooth, high-pressure performance and extended pump life in demanding commercial environments.

Product Specifications

• Pump Model: 5CP3120

• Assembly Type: Complete pump assembly with plumbing

• Pump Type: Triplex Plunger, Gear Drive

• Flow Rate: 4.5 GPM

• Max Pressure: 3500 PSI

• Rated Speed: 1645 RPM

• Required Engine Shaft Size: 1″

• Pump Shaft Size: 24 mm

• Unloader: VRT3-310EZ (included)

• Manufacturer: Pressure-Pro

• MPN: SLP5CP3120G1-402

• Condition: New

Features & Benefits

• Genuine Pressure-Pro OEM gear-drive pump assembly

• Gear-drive design for efficient power transfer and reduced belt wear

• Factory-plumbed for fast, drop-in replacement

• High-output 4.5 GPM / 3500 PSI performance

• Designed for engines with 1″ output shafts

• Includes VRT3-310EZ unloader for precise pressure control

• Smooth, low-RPM operation for extended pump life

Applications

• Engine-driven commercial pressure washers

• Gear-drive pressure washer systems

• Industrial and fleet-wash equipment

• Replacement assembly for compatible Pressure-Pro units

• Equipment repair, refurbishment, and upgrades

Important Notes

• Verify engine shaft size (1″), pump shaft size (24 mm), and RPM compatibility (1645) before ordering

• Designed for systems using 5CP3120 gear-drive pumps

• Final operating PSI and GPM depend on engine speed and overall system configuration