RK15.28HN Triplex Pressure Washer Pump – 3.96 GPM @ 4000 PSI, 1450 RPM, 24 mm Solid Shaft

Part Number: RK15.28HN
Category: Pressure Washer Pumps
Type: Commercial Triplex Pump – RK15.28HN, 4.0 GPM @ 4000 PSI (1450 RPM)

The RK15.28HN Triplex Pressure Washer Pump is a compact, high-pressure commercial pump engineered for 1450 RPM belt-drive and gear-drive systems. Delivering up to 3.96 GPM at 4000 PSI, this model provides powerful cutting performance in a durable, low-RPM format designed for long service life. Featuring a 24 mm solid shaft and rugged triplex plunger construction, the RK15.28HN is ideal for professional pressure washers that demand consistent output, reduced wear, and continuous-duty reliability.

With an 11.0 brake horsepower requirement, this pump is perfectly suited for mid-range commercial machines where space efficiency and performance must be balanced without sacrificing durability.

Product Specifications

• Pump Model: RK15.28HN

• Pump Type: Triplex Plunger

• Flow Rate: Up to 4.0 GPM

• Max Pressure: 4000 PSI

• Rated Speed: 1450 RPM

• Shaft Size: 24 mm Solid

• Brake Horsepower: 11.0 HP

• Weight: 20 lb

• Condition: New

Features & Benefits

• High-pressure 4000 PSI performance in a compact form factor

• Commercial-grade triplex plunger construction

• Low-RPM design for extended pump life and reduced wear

• 24 mm solid shaft for belt-drive and gear-drive systems

• Smooth, low-pulsation operation

• Built for continuous-duty professional use

Applications

• Commercial pressure washers

• Belt-drive and gear-drive washer systems

• Facility and fleet cleaning equipment

• Equipment repair, refurbishment, and performance upgrades

Important Notes

• Verify shaft size (24 mm solid), drive method, and system RPM (1450) before ordering

• Designed for belt-drive or gear-drive systems

• Final operating PSI and GPM depend on motor or engine output and overall system configuration