Giant LP122A-4000 Stainless Steel Pump – 35.4 GPM @ 1300 PSI / 40 GPM @ 2000 PSI

Model: LP122A-4000
Category: Pressure Washer Pumps → Triplex Plunger Pumps
Type: Giant LP122A-4000 Stainless Steel Pump – 35.4 GPM @ 1300 PSI, 800 RPM, 35mm Shaft

The Giant LP122A-4000 Stainless Steel Pump is a heavy-duty reciprocating triplex plunger pump built for demanding commercial and industrial pumping applications. Featuring a machined stainless steel manifold, spheroidal cast iron crankcase, solid ceramic plungers, and stainless steel valves, this pump is designed for long service life, corrosion resistance, and dependable performance in high-volume fluid handling systems.

Key Features

• Genuine Giant LP122A-4000 reciprocating triplex plunger pump

• Delivers 35.4 GPM at 1300 PSI

• Heavy-duty machined stainless steel manifold

• Durable spheroidal cast iron crankcase with sight glass and vented dipstick

• Solid ceramic plungers for long wear life

• Bronze connecting rods and forged, hardened crankshaft

• Stainless steel valves and hardened stainless steel plunger bases

• Nitrile seals with fabric reinforcing

• Dual 1-1/2" NPT inlet ports and dual 1" NPT discharge ports

• Designed for demanding industrial fluid transfer and cleaning systems

Technical Specifications

Product Name: Stainless Steel Triplex Plunger Pump
Manufacturer: Giant Pump
Model: LP122A-4000

Flow Rate: 35.4 GPM
Maximum Discharge Pressure: 1300 PSI
Crankshaft Speed: 800 RPM
Power Requirement: 56.3 HP
Maximum Fluid Temperature: 140°F
Maximum Inlet Pressure: 90 PSI

Inlet Ports: (2) 1-1/2" NPT
Discharge Ports: (2) 1" NPT
Plunger Diameter: 1.65" (42 mm)
Stroke: 1.65" (42 mm)
Crankshaft Diameter: 35 mm
Crankshaft Rotation: Top of pulley towards manifold
Crankshaft Mounting: Either side
Crankcase Oil Capacity: 116 fl. oz. (3.43 L)
Weight: 125 lbs.

Manifold Material: Stainless Steel
Crankcase Material: Spheroidal Cast Iron
Plunger Material: Solid Ceramic Oxide
Valve Material: Stainless Steel
Seal Material: Nitrile with Fabric Reinforcing
Condition: New

Construction Details

• Spheroidal cast iron crankcase with sight glass and vented dipstick

• Forged, through-hardened, ground and polished crankshaft

• Bronze connecting rods

• Hardened stainless steel plunger bases

• Solid ceramic plungers

• Nitrile seals with fabric reinforcing

• Stainless steel valves

• Machined stainless steel manifold

Typical Applications

• Industrial washdown and cleaning systems

• High-volume fluid transfer applications

• Commercial and industrial pressure washer systems

• Equipment requiring a stainless steel triplex plunger pump

• Heavy-duty systems needing high flow and dependable continuous operation