Cat Pumps 4SPX32G1I Triplex Pump (Includes Unloader & Chemical Injector) – 3.0 GPM @ 3000 PSI, 3450 RPM, 1" Hollow Shaft

Part Number: 4SPX32G1I
Category: Pressure Washing & High-Pressure Pump Systems
Type: Cat Pumps 4SPX32G1I Triplex Pump – 3.2 GPM @ 3000 PSI, 3450 RPM, 1" Hollow Shaft (Includes Unloader & Chemical Injector)

The Cat Pumps 4SPX32G1I is a high-output, direct-drive triplex pressure washer pump built for demanding portable and contractor-grade systems. Delivering up to 3.2 GPM at 3000 PSI, this model offers a substantial flow increase over standard residential pumps, translating to faster rinsing, broader coverage, and improved overall cleaning efficiency.

Product Specifications

• Model: 4SPX32G1I

• Type: Triplex Pressure Washer Pump

• Flow Rate: 3.2 GPM

• Max Pressure: 3000 PSI

• Operating Speed: 3450 RPM

• Shaft: 1" Hollow Shaft (Direct Drive)

• Bore Diameter: 14mm

• Stroke: 8.3mm

• Weight: 13.9 lbs

• Includes: Unloader Valve & Chemical Injector

• Condition: New

Features & Benefits

• High-output 3.2 GPM flow for faster, more efficient cleaning

• Triplex plunger design for smoother operation and longer pump life

• 1" hollow shaft for direct-drive gas engine mounting

• Operates up to 3450 RPM for compact, high-performance builds

• Includes unloader valve and chemical injector for easy installation

• More durable and serviceable than axial-style pumps

• Ideal for contractor, mobile detail, and light commercial systems

• Excellent upgrade from 2–2.5 GPM direct-drive pumps