4.5 Gpm Pressure Washer Pumps
16 offers compared: this page collects listings for 4.5 Gpm Pressure Washer Pumps priced from $82.99 to $844.99. Every product card leads to a detail page with specifications and an editorial take.
Prices have eased: the median sits at $116.21, 3.5% below its level from 32 days ago.
Our top picks: 4.5 Gpm Pressure Washer Pumps
Selected automatically from marketplace relevance and prices of 16 listed offers.
Budget pick2400 PSI Vertical Pressure Washer Pump with 2.4 GPM, 7/8" Shaft, Front OutletThis vertical pressure washer pump from The ROP Shop delivers 2400 PSI with a flow rate of 2.4 GPM.
Premium pick530017 AAA Pressure Washer Pump 2.5 GPM @ 3700 Max Burst PSI 3/4" Hollow ShaftThe AAA 530017 Pressure Washer Pump is a replacement component designed for cold water pressure washers, delivering 2.5 GPM flow and a maximum burst pressure of 3700 PSI.
Top 5: 4.5 Gpm Pressure Washer Pumps compared
| # | Product | Price | Rating | Type | Country of Origin |
|---|---|---|---|---|---|
| 1 | CAT Pumps 5PP3140CSS Triplex Pressure Washer Pump 4000 PSI 4.0-4.5 GPM | $700.00 | — | — | — |
| 2 | Cat Pumps Pressure Washer Pump, 3500 PSI, 4.5 GPM, Belt Drive, Model# 5CP3120 | $844.99 | — | WaterPump | US |
| 3 |  4.5 HP 5.6 GPM General Right Shaft 3500 PSI Pressure Washer Pump Belt Drive | $191.76 | — | Hot Water Pressure Washer | United States |
| 4 |  US 3600 PSI 4.9GPM Pressure Power Washer Pump 24mm Solid Shaft Belt Drive NEW | $130.68 | — | Parts - Pressure Washer Pump | United States |
| 5 |  Blue 4.5 HP Belt Drive 5.6 GPM Pressure Washer Pump General Right Shaft 3500 PSI | $194.46 | — | Hot Water Pressure Washer | United States |
- CAT Pumps 5PP3140CSS Triplex Pressure Washer Pump 4000 PSI 4.0-4.5 GPM
- pressure washerCat Pumps Pressure Washer Pump, 3500 PSI, 4.5 GPM, Belt Drive, Model# 5CP3120
- 4.5 HP 5.6 GPM General Right Shaft 3500 PSI Pressure Washer Pump Belt Drive
- US 3600 PSI 4.9GPM Pressure Power Washer Pump 24mm Solid Shaft Belt Drive NEW
- Blue 4.5 HP Belt Drive 5.6 GPM Pressure Washer Pump General Right Shaft 3500 PSI
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4.5 HP Belt Drive 5.6 GPM Pressure Washer Pump General Right Shaft 3500 PSI -
4.5 HP 5.6 GPM General Right Shaft Pressure Washer Pump 3500 PSI Belt Drive -
3500 PSI 4.5 HP Belt Drive 5.6 GPM Pressure Washer Pump General Right Shaft -
5.6GPM Belt Drive General Right Shaft 3500 PSI Pressure Washer Pump 4.5 HP Blue - 530017 AAA Pressure Washer Pump 2.5 GPM @ 3700 Max Burst PSI 3/4" Hollow Shaft
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3500 PSI 5.6GPM 4.5HP Pressure Washer Pump General Right Shaft -
5.6GPM 4.5 HP General Pressure Washer Pump Right Shaft 24 mm Diameter 3500 PSI -
3500 PSI 5.6GPM 4.5 HP General Pressure Washer Pump Right Shaft -
4.5 HP 3500 PSI 5.6GPM Pressure Washer Pump General Right Shaft New - 2400 PSI Vertical Pressure Washer Pump with 2.4 GPM, 7/8" Shaft, Front Outlet
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Comet Pressure Washer Pump ZWD4530 3000 PSI 4.5 GPM General CAT AR Direct Drive
FAQ: 4.5 Gpm Pressure Washer Pumps
What does 4.5 Gpm Pressure Washer Pumps currently cost?
The 16 priced offers on this page sit between $82.99 and $844.99. The middle price (median) is $194.95 — as of September 2026.
Which brands are listed for 4.5 Gpm Pressure Washer Pumps?
The most represented brands in this overview are ALL-CARB (3), CAT Pumps (2) and findmall (2) (offer counts as of September 2026).
How do you narrow down the right model for 4.5 Gpm Pressure Washer Pumps?
Useful comparison criteria are Pressure (PSI), Flow Rate (GPM), Color, Unit System and Connector Type; this page's filters are built around them.