Pressure-Pro TS/D4040HA431 Pressure Washer Power Unit MACHINE ONLY* – 4.0 GPM @ 4000 PSI, Honda GX390 Gas Engine, AR Direct Drive Pump

Part Number: TS/D4040HA431
Category: Pressure Washer Power Units
Type: Gas Cold Water Power Unit – 4000 PSI, 4.0 GPM, Honda GX390, AR Direct Drive Pump

TANK AND HOSE REEL SOLD SEPERATLY AND NOT INCLUDED IN THIS LISTING*

The Pressure-Pro TS/D4040HA431 Pressure Washer Power Unit delivers 4.0 GPM at 4000 PSI, making it an ideal core component for professional mobile pressure washing systems and trailer or truck-mounted cleaning rigs. Powered by a Honda GX390 commercial-grade gas engine and paired with a rugged AR direct-drive pump, this unit is built for high-pressure performance, reliability, and compact integration. 

NOTE: All units are completely factory assembled, tested in the USA, and delivered ready to operate.

System Overview

• Designed to integrate with Pressure-Pro Pro-Skid tank systems

• Creates a “Totally Self-Contained” mobile pressure washing system

• Available system configurations support:

  • 2400–4000 PSI

  • Up to 10 GPM

  • Belt-drive, gear-drive, and direct-drive options

• Aircraft-grade aluminum skid construction

  • Chemical-resistant

  • Rustproof

• Adjustable pressure unloader valve included

• Quick, secure mounting for truck beds, trailers, and mobile platforms

Standard Features

• 4000 PSI / 4.0 GPM cold water performance

• Honda GX390 commercial / industrial-grade gasoline engine

• AR direct-drive pump for compact, efficient power transfer

• Designed for mobile Pro-Skid tank-fed systems

• Built for commercial and industrial duty cycles

Standard Accessories

• Professional gun / wand assembly with quick connects

• 50-ft high-pressure hose with quick connects

• Chemical injector assembly with quick connects

• 4 color-coded quick-connect spray nozzles

• 1 color-coded quick-connect chemical nozzle

Dimensions (With Pro-Skid Systems)

AST-100 with AHR250

• 39″ W × 62″ L × 44″ H

• 39″ W × 62″ L × 31″ H (without hose reel)

AST-200 with AHR250

• 49″ W × 62″ L × 53″ H

• 49″ W × 62″ L × 40″ H (without hose reel)

Assembly Note:

• 100-gallon units ship factory assembled

• 200-gallon units require minor assembly

Specifications

• Engine: Honda GX390 Gas

• Pump: AR (Direct Drive)

• Pressure: 4000 PSI

• Flow Rate: 4.0 GPM

• Power Source: Gasoline

• Configuration: Mobile Power Unit / Pro-Skid Compatible