Replacement Pump for Honda GX390

When it’s time to replace your pressure washer pump, the choice is clear. The Annovi Reverberi RSV4G40-PKG D is the #1 replacement pump for pressure washers powered by the Honda GX390 engine. Designed for durability, performance, and easy installation, this complete package includes everything you need to get back to work — fast.

Why Replacement Pump for Honda GX390 Stands Out:
Direct Fit for Honda GX390: Engineered specifically for GX390 horizontal shaft engines with a 1″ hollow shaft for seamless replacement.
Up to 4000 PSI / 4.0 GPM: Delivers commercial-grade cleaning power for tough residential and light industrial applications.
Triplex Plunger Design: Smooth, reliable performance with less vibration and longer pump life.
Brass Pump Head: Corrosion-resistant and built to handle a wide range of water and detergent types.
Ceramic Plungers: Heat- and wear-resistant for extended durability in high-pressure applications.
Frictionless Aluminum Connecting Rods: Lightweight and low-maintenance internal design.
Compact & Lightweight: Weighs just 14 lbs with a sleek, space-saving frame that’s easy to mount.
Includes Hardware & Siphon Kit: Comes as a full package — no need to source additional fittings or accessories.
Rated for 3400 RPM Operation: Optimized for standard gas engine speeds.
1″ Hollow Shaft, Horizontal Mount: Designed for direct drive or pulley setups.
Max Water Temp: Handles up to 140°F (60°C) for hot water compatibility.
Built-In Unloader Valve & Chemical Injector: Saves time on setup and improves flow control.

Replacement Pump for Honda GX390 Ideal For:
Residential & light commercial pressure washers
Surface cleaning, house washing, vehicle detailing
Replacing worn OEM pumps or upgrading performance
Upgrade your system with the pump that’s trusted by pros and weekend warriors alike. The RSV4G40-PKG D by Annovi Reverberi offers a perfect balance of power, reliability, and value — and it’s available now at WSHPWR.com.

Need help matching or installing?
Contact our experts at sales@wshpwr.com or call 505-305-7800

For additional industry standards and technical resources, visit the Hydraulic Institute website