Westinghouse WPX3600
#6 in GasFull review
For homeowners who want a longer lasting triplex pump and longer hose without paying Honda engine prices.
Amazon $529$529
3.6/5
For pressure washing businesses and farms that run a washer for hours at a time. Homeowners get far better value from a 3,000 to 3,600 PSI model.
- 4,200 PSIPressure
- 4 GPMFlow
- 50 ftHose
- 3 yearsWarranty
Check price at Amazon$1,199.04
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 4.0 GPM at 4200 PSI is among the most cleaning power a direct drive washer offers
- Honda GX390 and AAA triplex pump are built for all day professional use
- 50 ft steel braided hose and 31 in wand included
Cons
- 136 lb, so loading it needs a ramp or two people
- Priced for contractors, well above what home use needs
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its power source. How we rank explains each one.
Specifications
| Model number | PS4240-S |
|---|---|
| Cleaning | |
| Pressure | 4,200 PSI |
| Flow | 4 GPM |
| Cleaning units | 16,800 |
| Nozzles included | 5 |
| Power | |
| Power | Gas |
| Engine or motor | 389 cc (Honda GX390) |
| Pump | Triplex plunger |
| CARB compliant | No |
| Build | |
| Hose | 50 ft |
| Weight | 136 lb |
| Warranty | 3 years |
Alternatives in this power source
PowerSmart DL1038A
#7 in GasFull review
A low cost gas washer with a long hose for homeowners who clean a few times a year. Judge it as a 3000 PSI machine, not the 3800 PSI in the title.
Amazon $269.99$269.99
Simpson Aluminum 4200 PSI
#9 in GasFull review
For pressure washing businesses that want a CAT pump and a rustproof frame at full 4 GPM flow. The steel frame PS4240 does the same work for less.
Amazon $1,397$1,397
Compare
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