4.2 Gpm Pressure Washer Pumps
Looking for 4.2 Gpm Pressure Washer Pumps? This page puts 13 models side by side — from the budget entry at $189.90 up to the premium pick at $1,171.20. Sort by price, rating, or discount to zero in on the right choice.
Prices have firmed: the median sits at $207.50, 60% above its level from 32 days ago.
Our top picks: 4.2 Gpm Pressure Washer Pumps
Selected automatically from marketplace relevance and prices of 13 listed offers.
Top matchPressure Washer Pump 1" Shaft Horizontal Triplex Plunger 4200 PSI 4.2GPMThis triplex plunger pressure washer pump is built for horizontal engines, delivering a substantial 4200 PSI maximum pressure and a 4.2 GPM flow rate.
Budget pickVEVOR Pressure Washer Pump 1" Shaft Horizontal Triplex Plunger 4200 PSI 4.2GPMThe VEVOR QXB-5 is a horizontal triplex plunger pressure washer pump with a 1-inch shaft, capable of delivering a maximum pressure of 4200 PSI (recommended 3400 PSI) and…
Top 5: 4.2 Gpm Pressure Washer Pumps compared
| # | Product | Price | Rating | Type | Maximum Pressure |
|---|---|---|---|---|---|
| 1 |  CAT Pumps 3CP1120 Triplex Plunger Pressure Washer Pump 4.2 GPM 2200 PSI | $620.00 | — | Pressure Washer | 2200 psi |
| 2 | Pressure Washer Pump 1" Shaft Horizontal Triplex Plunger 4200 PSI 4.2GPM | $195.99 | — | Pressure Washer Pump | — |
| 3 | Westinghouse WPX4400 Wheel-Mounted Gas Pressure Washer 4400 PSI 4.2 GPM | $830.00 | — | — | 4400 psi |
| 4 |  Pressure Washer Pump, 4400 PSI, 4.0 GPM, 1" Shaft Horizontal Triplex Plunger, Re | $261.48 | — | — | — |
| 5 |  TOOLCY 4000 PSI Triplex Pressure Washer Pump 1" Shaft Horizontal Plunger 4.2 GPM | $244.29 | — | Cold Water Pressure Washer | 4000 psi |
- CAT Pumps 3CP1120 Triplex Plunger Pressure Washer Pump 4.2 GPM 2200 PSI
- Pressure Washer Pump 1" Shaft Horizontal Triplex Plunger 4200 PSI 4.2GPM
- Westinghouse WPX4400 Wheel-Mounted Gas Pressure Washer 4400 PSI 4.2 GPM
- Pressure Washer Pump, 4400 PSI, 4.0 GPM, 1" Shaft Horizontal Triplex Plunger, Re
- TOOLCY 4000 PSI Triplex Pressure Washer Pump 1" Shaft Horizontal Plunger 4.2 GPM
- VEVOR Pressure Washer Pump 1" Shaft Horizontal Triplex Plunger 4200 PSI 4.2GPM
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TOOLCY Pressure Washer Pump Max 4400 PSI 4.2 GPM, 1" Shaft Horizontal Gas Power -
4200psi 4.2gpm 1in Horizontal Shaft Triplex Plunger Pressure Washer Pump -
4200 PSI 4.2 GPM Triplex Plunger Pressure Washer Pump Horizontal 1" -
4200 PSI 4.2 GPM Horizontal Plunger Pressure Washer Pump -
YAMATIC 4300psi Horizontal Triplex Plunger Pressure Washer Pump 1" Shaft 4.2 GPM -
General Pump T9211 Pressure Washer Pump, 3000 PSI, 4.2 GPM, Belt Drive -
TOOLCY Pressure Washer Pump Max 4400 PSI 4.2 GPM, 1" Shaft 4400, Black
FAQ: 4.2 Gpm Pressure Washer Pumps
What price range does 4.2 Gpm Pressure Washer Pumps fall into?
The current span runs from $189.90 to $1,171.20 across 13 offers with a listed price; the midpoint is $261.48 (as of September 2026).
What should you compare when choosing 4.2 Gpm Pressure Washer Pumps?
Key selection criteria on this page are Pressure (PSI), Flow Rate (GPM), Color, Unit System and Connector Type. The category filters cover each of these, so suitable models can be narrowed down step by step.