DeWalt 3300 PSI 2.4 GPM Gas Pressure Washer

Why I picked up the DeWalt 3300

I wanted a gas washer with real punch for driveways, patios, and occasional prep work on decks and siding—something stronger than a typical electric but not a full-blown contractor unit. The DeWalt 3300 checked the key boxes: 3,300 PSI, 2.4 GPM, a 208cc OHV engine with low-oil shutdown, and an axial-cam pump that’s maintenance-free. It also comes with a full nozzle set, a turbo nozzle, and a surface scrubber, which saves you from accessory hunting on day one.

After several weekends of cleaning concrete, composite decking, and vinyl siding, here’s how it performed.

Setup and first impressions

Assembly took minutes: bolt on the handle, connect the hose and wand, add the supplied engine oil, fuel it, and attach a garden hose. The welded steel frame feels stout and resists flexing when you yank the recoil rope. At 64 lb, it’s not featherweight, but the 10-inch pneumatic, run-flat-style tires make stairs and lawn transitions easy. Onboard storage for the gun, lance, and tips is thoughtful and secure; I wish the hose management was a touch more elegant, but it’s typical for the category.

Starting and controls

Cold starts were predictable: fuel on, choke engaged, one to two pulls to fire, then off choke within seconds. Warm restarts occasionally wanted a little finesse—no choke, a crack of throttle, and a firm pull. The recoil starter is smooth and doesn’t kick back. The low-oil shutdown offers some peace of mind if you’re lending it out or running on slopes.

One tip: bleed the air out of the high-pressure hose at the gun before pulling the starter to avoid a fighting pump.

Noise and vibration

It’s a gas washer—it’s loud. I kept hearing protection on and wouldn’t run this early in a dense neighborhood. Vibrations are well controlled; the rubber bumpers and mass of the frame keep it from walking around under load. Nothing rattled loose during my time with it.

Cleaning performance

• Concrete and pavers: The included surface scrubber makes a big difference on driveways and sidewalks. With 2.4 GPM feeding it, it’s appropriately fast for a 3,300 PSI class machine—faster and more consistent than striping with a 15° tip. I cleaned a two-car driveway and sidewalk in a couple of hours, including setup and rinsing.

• Decking and fences: The 25° and 40° tips gave good control. On softwood decks, I kept the wand 12–18 inches off the surface and used light passes to avoid furrowing or raising the grain. The turbo nozzle is great for spot-cleaning stubborn algae or rust stains on concrete, but it’s too aggressive for wood.

• Siding and equipment: The detergent siphon works as expected with the black soap tip. I ran a house wash through it on vinyl siding, let it dwell, then rinsed with the 40° tip—no drama, and the pump pulled solution consistently. The siphon hose’s little filter helps keep grit out of the pump.

Overall pressure feels on target for the spec. More GPM would be welcome for really big flatwork, but for homeowner and light-pro work, this is a sweet spot: strong enough to lift embedded grime without tearing things up when you choose the right tip and distance.

Hose, gun, and nozzles

The 25-foot MorFlex/steel-braided hose is abrasion- and kink-resistant and survived being dragged over concrete edges. It’s a little stiff in cooler temps but relaxes as it warms. If you’re frequently doing driveways, consider a 50-foot upgrade to reduce moves, but check compatibility and avoid exceeding the pump’s limits.

The pro-style gun and 16-inch stainless lance feel solid. The trigger pull has a firm spring—normal for the class—and the quick-connect tips lock securely. The nozzle spread is spot-on: 0°, 15°, 25°, 40°, plus soap. The turbo nozzle is a standout for heavy concrete stains. The included surface scrubber is the accessory I used most; it leaves a uniform finish and reduces streaks.

Mobility and storage

Transport is easy. The run-flat pneumatic tires roll over gravel and thresholds without a thud, and the balance point is right so you’re not wrestling it around. The frame’s rubber bumpers are a nice touch and keep it from scuffing walls or the bed of a truck. Storage footprint is reasonable for a gas unit; I’d love a folding handle, but as-is it tucks against a garage wall fine.

Maintenance and durability

The axial-cam pump is marketed as maintenance-free. That’s accurate for routine users—you won’t be doing pump oil changes. The tradeoff, as with all axial pumps, is that it’s not as rebuildable as a triplex if you’re running it daily. For homeowner and light commercial duty, it’s the right compromise.

A few care practices that matter with this washer:
- Never run it without water; the pump seals can overheat quickly.
- Don’t let it idle in bypass for long—if you step away, shut it down.
- Use a pump saver/antifreeze protector for storage; it keeps seals lubricated and prevents corrosion.
- Change the engine oil on schedule (especially the first early change) and keep the air filter clean.

The engine’s low-oil shutdown is a welcome safety net. Warranty coverage is strong for this tier: 2-year limited on the engine for commercial use, 3 years on the pump, and 5 years on the frame.

What I’d improve

• Hose length: 25 feet is workable, but 35–50 feet would reduce moving the unit around a car or up a long sidewalk.
• Warm restart manners: Perfectly serviceable, but it sometimes took a couple of extra pulls after a hot shutdown. Following the no-choke warm-start routine fixed it.
• Noise: It’s inherent to the class, but a larger muffler or tuned baffle would be welcome for neighborhood work.
• Hose storage: The onboard storage for the gun and tips is great; a better hose wrap or reel would tidy things up.

Who it’s for

• Homeowners with big hardscapes who want pro-adjacent cleaning speed.
• Pros who need a reliable secondary unit for smaller jobs or touch-ups.
• Property managers who value a durable frame, easy transport, and low-maintenance pump.

If you’re a contractor washing daily, a triplex-pump unit with higher GPM will pay off in longevity and speed. If you only need occasional light cleaning, an electric may be quieter and simpler. The DeWalt 3300 sits comfortably in the middle: strong, fast, and fairly compact.

Safety and use tips

• Wear hearing and eye protection; this washer is loud and throws debris.
• Start with a wider tip and move closer before switching to a narrower tip.
• Keep moving on wood and soft surfaces; test on an inconspicuous area.
• Only use detergents compatible with pressure-washer pumps; avoid straight bleach through the pump.
• Flush detergents with clean water at the end of the job.

Bottom line and recommendation

I recommend the DeWalt 3300 for homeowners and light-duty pros who want a capable, easy-to-run gas washer with useful accessories included. It hits a practical balance of pressure and flow, the surface scrubber meaningfully speeds up flatwork, and the axial-cam pump keeps ownership simple. It’s loud and I’d like a longer hose out of the box, but those are manageable tradeoffs given the performance, sturdy frame, and generous warranty coverage. If your workload is seasonal or weekly rather than daily, this washer delivers the right mix of power, durability, and convenience.