RKASS42G15E-F17 | 4.2 GPM 1500 PSI Triplex Pump, SS 182/184C

RKASS42G15E-F17 — Stainless Triplex Pump, 4.2 GPM, 1,500 PSI, 1,750 RPM (E17 / NEMA 182–184)

The RKASS42G15E-F17 is a commercial-duty stainless steel triplex plunger pump engineered for continuous-duty electric-drive pressure washer systems. Designed for professional cleaning environments that demand high water volume with moderate pressure, this model delivers a dependable 4.2 gallons per minute at 1,500 PSI while operating at a standard 1,750 RPM. The result is smooth, efficient cleaning performance with reduced mechanical stress and long service life.

This pump is supplied with a pre-installed E17 flange for direct mounting to NEMA 182–184 frame electric motors using a 1-1/8″ hollow shaft. The direct-drive configuration eliminates belts and pulleys, simplifies alignment, and improves power transfer efficiency—making the RKASS42G15E-F17 an ideal choice for OEM builds, stationary wash systems, and commercial skid-mounted equipment.

Built around a stainless steel manifold head, the RKASS42G15E-F17 offers excellent resistance to corrosion, detergents, and thermal cycling. Internally, solid ceramic plungers, stainless steel valves, and oversized heavy-duty bearings work together to provide smooth operation, low pulsation, and extended component life even under continuous daily use.

Key Specifications

Pump Performance

• Flow Rate: 4.2 GPM
• Maximum Pressure: 1,500 PSI
• Operating Speed: 1,750 RPM
• Pump Type: Triplex ceramic plunger pump

Construction & Materials

• Manifold / Head: Stainless steel for corrosion and chemical resistance
• Plungers: Solid ceramic for abrasion resistance and reduced heat transfer
• Valves: Stainless steel for long-term reliability
• Bearings: Oversized, heavy-duty bearings for smooth rotation and extended service intervals
• Crankcase: Oil-bath lubricated aluminum crankcase for effective cooling and durability

Mounting & Drive Configuration

• Flange Type: E17 electric motor flange (factory installed)
• Motor Compatibility: NEMA 182–184 frame electric motors
• Shaft Configuration: 1-1/8″ hollow shaft, direct-drive

Warranty

• Coverage: 5-year commercial manufacturer’s warranty
• Support: U.S.-based service and parts availability

What’s Included

• Pre-filled break-in crankcase oil for immediate startup
• Oil sight glass for quick visual oil-level checks
• Vented dipstick for proper crankcase pressure control
• Owner’s manual and installation documentation
• Factory performance test report verifying flow and pressure
• 5-year commercial warranty documentation

How the RKASS42G15E-F17 Works

The RKASS42G15E-F17 employs a triplex plunger design, using three ceramic plungers driven by a precision-balanced crankshaft. As each plunger cycles in sequence, water is drawn into the pump and pressurized with minimal pulsation. This design delivers smoother flow than axial pumps, reduces vibration, and places less stress on seals and bearings.

The stainless steel manifold resists corrosion and pitting in detergent-rich or damp environments, while stainless steel valves maintain precise intake and discharge control. Ceramic plungers operate at cooler temperatures than steel alternatives, extending seal life and ensuring stable performance during extended cleaning cycles.

Direct-drive integration via the E17 flange allows the pump to bolt directly to a compatible electric motor. This eliminates alignment issues, reduces mechanical losses, and creates a compact, efficient assembly ideal for fixed installations and OEM equipment.

Benefits of the RKASS42G15E-F17

• High-Volume Cleaning: 4.2 GPM provides excellent rinsing and surface coverage at moderate pressure.
• Commercial Durability: Stainless steel head and ceramic plungers withstand daily professional use.
• Smooth Operation: Triplex design minimizes pulsation and vibration.
• Direct Motor Mount: E17 flange simplifies installation and improves efficiency.
• Low Maintenance: Sight glass and vented dipstick make routine service quick and simple.
• Factory Verified: Every unit is performance-tested before shipment.

Typical Applications

• Fleet & Vehicle Washing: Trucks, buses, and service vehicles
• Municipal Cleaning: Public works equipment and sanitation systems
• Industrial Maintenance: Machinery, floors, and production areas
• Food & Beverage Facilities: Washdown and sanitation applications
• Restaurant Hood Cleaning: Reliable performance in grease-heavy environments
• Contractor Systems: Stationary or skid-mounted electric pressure washers

Why Choose the RKASS42G15E-F17

The RKASS42G15E-F17 is purpose-built for professionals who need high water volume, moderate pressure, and long-term reliability in an electric-drive pressure washer pump. Its stainless steel construction, ceramic plungers, and direct-drive E17 mounting make it an excellent solution for continuous-duty commercial cleaning systems.

Backed by factory testing, pre-filled oil, and a 5-year commercial warranty, the RKASS42G15E-F17 delivers dependable performance, simplified installation, and long-term value for contractors, OEMs, and industrial users.