DeWalt DXPW3300 Gas
#16 in GasFull review
A homeowner washer for buyers who want a longer pump warranty than budget brands. Similar output costs less from Westinghouse.
Amazon $429$429
The DeWalt DXPW3300 Gas is the better pressure washer overall, rated 3.0 to 2.7. The DeWalt DXPW3300 Gas leads on value. The Simpson Aluminum 3400 PSI wins on warranty and cleaning power. The DeWalt DXPW3300 Gas costs $403.90 less ($429 vs $832.90).
Simpson Aluminum 3400 PSI
#19 in GasFull review
For contractors who want a CAT pump and a rustproof frame on a light 2.5 GPM machine. Homeowners get the same cleaning power for far less elsewhere.
Amazon $832.90$832.90
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the DeWalt DXPW3300 Gas for value ($54.17 per 1,000 cleaning units ($429, 7,920) vs $97.99 per 1,000 cleaning units ($832.90, 8,500)).
- Choose the Simpson Aluminum 3400 PSI for warranty (3-year warranty vs 2-year warranty) and cleaning power (8,500 cleaning units (3,400 PSI x 2.5 GPM) vs 7,920 cleaning units (3,300 PSI x 2.4 GPM)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every gas pressure washer; a clear win is highlighted. How we rank explains each one.
| Factor weight | DeWalt DXPW3300 Gas | Simpson Aluminum 3400 PSI |
|---|---|---|
| Overall rating | 3.0/5 | 2.7/5 |
| Value 35% | 54 $54.17 per 1,000 cleaning units ($429, 7,920) | 0 $97.99 per 1,000 cleaning units ($832.90, 8,500) |
| Cleaning power 30% | 49 7,920 cleaning units (3,300 PSI x 2.4 GPM) | 58 8,500 cleaning units (3,400 PSI x 2.5 GPM) |
| Hose 10% | 33 25 ft hose | 33 25 ft hose |
| Warranty 25% | 25 2-year warranty | 50 3-year warranty |
Specifications
| DeWalt DXPW3300 Gas | Simpson Aluminum 3400 PSI | |
|---|---|---|
| Cleaning | ||
| Pressure | 3,300 PSI | 3,400 PSI |
| Flow | 2.4 GPM | 2.5 GPM |
| Cleaning units | 7,920 | 8,500 |
| Nozzles included | 5 | 5 |
| Power | ||
| Power | Gas | Gas |
| Engine or motor | 208 cc (DeWalt OHV) | 196 cc (Honda GX200) |
| Pump | Axial cam | Triplex plunger |
| CARB compliant | No | No |
| Build | ||
| Hose | 25 ft | 25 ft |
| Weight | 64 lb | 81 lb |
| Warranty | 2 years | 3 years |