General Pump EZ3042S 3000 PSI/ 4.2 GPM -24 MM Solid Shaft Pressure Washer Pump

Special One-Time Offer – Trade Show Inventory
Take advantage of this unique opportunity to own brand-new, unused equipment at a discounted price. Each unit was displayed as a tabletop demonstration at select trade shows and is available in a single quantity only—once it’s sold, it’s gone. Prices include delivery to the 48 contiguous states, and every product comes backed by a full manufacturer’s warranty, ensuring you receive the same protection as a standard new purchase. Requires $250 purchase to qualify for delivery included.

 

General Pump EZ3042S — 4.2 GPM @ 3000 PSI, 1750 RPM (Right-Hand)

Price: $399
Brand: General Pump (Interpump Group)
Series: EZ Series 44 • Drive: Solid Shaft • Orientation: Right-hand

The EZ3042S is a compact, Italian-made triplex plunger pump built for professional duty and proven in the field on hydro-excavation / potholing trailers, mobile wash skids, and industrial cleaning systems. It’s an upgraded successor to the EZ2542S, adding a higher pressure rating and a premium shaft bearing for longer life at 1750-RPM direct-drive speeds.

Why it stands out

• 4.2 GPM at 3000 PSI in a small footprint—ideal for single-gun industrial cleaning and utility rigs.
• Triplex design with solid ceramic plungers for excellent wear resistance and heat handling.
• Oil-bath crankcase (die-cast, anodized aluminum) for cooler running and extended service intervals.
• Forged-brass manifold with a 4:1 hydrostatic safety factor for durability under real-world pressure spikes.
• Right-hand, 24 mm solid shaft—simple to couple to 1750-RPM electric motors via bell housing/flex coupling (available separately).
• Direct drop-in for popular rigs, and a replacement for older T991 / 50-Series layouts.

Core specs

• Max Flow: 4.2 GPM
• Max Pressure: 3000 PSI
• Speed: 1750 RPM
• Shaft: 24 mm solid (Ø 0.945")
• Stroke: 0.512" (13 mm)
• Plunger Bore: 0.708" (18 mm)
• Crankcase Oil Capacity: 14.0 oz
• Max Inlet Pressure: 125 PSI
• Max Inlet Vacuum: 9 ft water (≈7.9 in Hg)
• Estimated Power Requirement: 8.6 EBHP

 

Ports & threading

• Inlet: 1/2 inch
• Outlet 3/8 inch

 

SKU:	TS-EZ3042S
PSI:	3000
GPM:	4.2