EZ2542E Triplex Pressure Washer Pump – 4.2 GPM @ 2500 PSI, 1750 RPM, 1-1/8″ Hollow Shaft

Part Number: EZ2542E
Category: Pressure Washer Pumps
Type: Direct-Drive Triplex Pump – EZ2542E, 4.2 GPM @ 2500 PSI (1750 RPM, 1-1/8″ Hollow Shaft)

The EZ2542E Triplex Pressure Washer Pump from General Pump’s EZ Series 44E is a high-flow, low-RPM electric-duty pump engineered for smooth operation, extended service life, and dependable performance in professional cleaning systems. Rated for 4.2 GPM at up to 2500 PSI and designed to operate at 1750 RPM, this pump delivers increased water volume for faster rinsing and improved productivity while reducing wear compared to high-speed alternatives. Featuring solid ceramic plungers, a forged brass manifold with lifetime warranty, and a 1-1/8″ hollow shaft with NEMA electric flange, the EZ2542E is ideal for electric pressure washers and OEM replacements that demand high output, durability, and quiet, low-pulsation performance.

Product Specifications

Pump Model: EZ2542E
Pump Type: Triplex Plunger, Direct Drive (Electric Flange)
Flow Rate: 4.2 GPM
Max Pressure: 2500 PSI
Max Inlet Pressure: 125 PSI
Rated Speed: 1750 RPM
Minimum Power Required: 7.2 BHP
Bore: .708″ (18 mm)
Stroke: .612″ (13 mm)
Shaft Size: 1-1/8″ Hollow
Crankcase Capacity: 14 oz (Non-detergent SAE 30W oil)
Max Fluid Temperature: 165°F
Inlet Port Thread: 1/2″ FPT
Discharge Port Thread: 3/8″ FPT
Dimensions: 8.8″ x 8.8″ x 6.3″
Weight: 20 lbs
Condition: New

Features & Benefits

• Solid ceramic plungers for extended wear life

• Triplex plunger design for smooth, low-pulsation operation

• Forged brass manifold with exclusive lifetime warranty and 4:1 hydrostatic rating

• Die-cast, anodized aluminum oil-bath crankcase

• Premium roller bearings for long-term reliability

• Unitized stainless steel inlet and discharge valves

• Optimized for 1750 RPM electric-drive systems

• Available in a left-hand (“L”) configuration for specific motor setups

Applications

• Electric pressure washers

• General pressure cleaning and washing systems

• Light commercial and professional equipment

• OEM replacement for EZ Series 44E configurations

• Equipment repair and refurbishment

Important Notes

• Verify shaft size (1-1/8″ hollow), mounting flange, and motor compatibility before ordering

• Designed for direct-drive electric motor configurations

• Fill crankcase to the oil gauge window dot with non-detergent SAE 30W oil

• Change oil after 40-hour break-in, then every 500 hours or three months

• Final operating PSI and GPM depend on motor output and overall system setup