ReelUp tracking pixel Read the Privacy Policy
Skip to content
BFCM Sale! Code: BFCM26 for 5% OFF sitewide | DeWalt Workwear 15% OFF | Kress Deals: Save Up to $2,407! Shop Now
BFCM Sale! Code BFCM26 for 5% OFF
DeWalt Workwear 15% OFF
Kress: Save Up to $2,407! Shop Now

DeWalt 3800psi Petrol Pressure Washer (CETA Certified) DXPW3813

SKU DXPW3813
BARCODE 636893407314
By: Dewalt
Save 13% Save 13%
Original price $1,960.79
Original price $1,960.79 - Original price $1,960.79
Original price $1,960.79
Current price $1,699.00
$1,699.00 - $1,699.00
Current price $1,699.00
Availability: This product will be delivered in 3-5 business days

SECURED SSL CHECKOUT GUARANTEED

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Satispay
  • Shop Pay
  • Union Pay
  • Visa

Delivery Notice:

Please allow 3-5 business days for processing before it's ready for delivery or pickup. All standard delivery options still apply.

Finapps equipment financing

Equipment financing made easy.

Powered by Finapps.

Learn more

DEWALT 3800 PSI Petrol Pressure Washer (270cc) – Heavy Duty Pressure Washer

Command unrelenting, industrial-grade cleaning force and utterly dominate the most grueling commercial worksites with the devastating power of the DEWALT 3800 PSI Petrol Pressure Washer (DXPW3813). When tasked with stripping thick, baked-on clay from heavy earthmoving equipment or rapidly restoring sprawling commercial carparks, standard 3000 PSI machines simply lack the necessary kinetic punch and water volume. This elite heavy duty pressure washer is a true industrial powerhouse. It is driven by a massive 270cc DEWALT commercial-grade engine that generates a ferocious, CETA-certified 3,800 PSI of blasting pressure. Crucially, it pushes an exceptional 13.25 Litres of water per minute, providing the massive flushing power required to wash heavy, thick mud away the exact second it is cut from the surface.

Engineered to survive extreme, continuous daily abuse, the heart of the DXPW3813 is an industrial AAA Triplex Pump. Triplex pumps are the absolute gold standard in commercial cleaning, featuring heavy-duty ceramic plungers and forged brass manifolds designed to run vastly cooler and outlast standard axial pumps by years. Housed within a rugged, heavy-gauge steel frame and mounted on large pneumatic tyres for flawless all-terrain mobility, it arrives fully equipped with a massive 15-metre steel-braided hose, allowing you to wash entire massive vehicles without moving the engine block. Equip your fleet with this uncompromising petrol pressure cleaner and slash your heavy-duty cleaning times in half.

Who Is The DEWALT 3800 PSI Pressure Washer Ideal For?

The DXPW3813 delivers a massive 270cc engine, Triplex Pump durability, and 13.25 LPM flow. It is highly recommended for:

  • Commercial Exterior Cleaners: Utilizing an extreme-output heavy duty pressure washer to effortlessly drive massive 20-inch concrete surface cleaners across sprawling warehouse floors and commercial driveways without the machine stalling.
  • Construction & Earthmoving: Relying on the colossal 3800 PSI water force to violently blast dried cement, abrasive slurry, and heavy mud off massive excavators and dump trucks in remote, off-grid locations.
  • Agricultural & Farming Fleets: Deploying the highly mobile steel cart across deeply rutted farm terrain to rapidly sanitize massive livestock pens and heavy harvesters, relying on the huge 13.25 LPM flow to flush waste quickly.
  • Industrial Maintenance Teams: Upgrading their wash bay with a highly reliable petrol pressure cleaner featuring an industrial Triplex pump designed to handle 8-hour continuous cleaning shifts without burning out.

Key Features and Performance Benefits:

  • Colossal 3800 PSI & 13.25 LPM: The ultimate combination of pressure and flow. 3800 PSI violently shatters rock-hard stains, while the massive 13.25 Litres per minute flow rate instantly flushes the heavy debris down the drain, saving massive amounts of labor time.
  • Industrial AAA Triplex Pump: Triplex pumps are engineered for professionals. They utilize three heavy-duty ceramic plungers running at lower RPMs, drastically reducing friction heat and ensuring the pump lasts thousands of hours longer than cheap consumer variants.
  • Massive 270cc DEWALT Engine: Provides incredible commercial torque. It features a cast iron cylinder sleeve for extreme longevity and a low-oil shutdown sensor that instantly kills the engine if oil drops, preventing catastrophic engine seizure.
  • Extended 15m Steel-Braided Hose: A massive operational advantage. The 15-metre, kink-resistant hose allows the operator to walk completely around a large truck or massive piece of machinery without constantly having to drag the heavy engine cart behind them.
  • Pro-Style Gun & 78cm Lance: Designed to drastically reduce operator fatigue. The ergonomic trigger gun features a side grip for two-handed control, while the extra-long 78cm stainless steel lance keeps the dangerous high-pressure jet safely away from the operator's feet.

Technical Specifications & Inclusions:

  • Brand: DEWALT
  • Model: DXPW3813
  • Product Type: Petrol Pressure Washer / Heavy Duty Pressure Washer
  • Max Pressure: 3,800 PSI (CETA Certified)
  • Flow Rate: 13.25 Litres per minute (LPM)
  • Engine: DEWALT 270cc Commercial Grade (Low-Oil Sensor)
  • Pump Type: AAA Industrial Triplex (Forged Brass Head)
  • Hose Length: 15 Metres (Steel-Braided)
  • Lance Length: 78cm (Stainless Steel)
  • Inclusions: Spray gun, lance, 15m hose, 5x Quick-Connect Nozzles.

Dispatch: Items marked as “In stock” or “Ready to be shipped” are usually dispatched within 1 business day after payment is received. If an item is not in stock and ordered from our supplier, please allow 3–5 business days for processing before it is ready for delivery or pickup. All standard delivery options still apply.

Shipping: Delivery costs are calculated at checkout based on your location and order size. Bulky items and chemicals may attract additional freight charges and cannot be sent to PO Boxes.

Delivery: Parcels are delivered by road freight. Authority to leave may be used if no one is available to receive the order. For full details, please see our Shipping & Delivery Policy

Business days to delivery

NSW
City 1 Day
VIC
Melbourne 1 Day
Regional 3–4 Days
QUEENSLAND
Brisbane 1–2 Days
Regional 3–4 Days
SOUTH AUSTRALIA
Adelaide 2–3 Days
Regional 4–5 Days
NORTHERN TERRITORY
All Areas 4–6 Days
WESTERN AUSTRALIA
All Areas 4–6 Days
TASMANIA
All Areas 4–6 Days
Why is a 'Triplex' pump better than a normal pump?

Cheap domestic washers use 'Axial Cam' pumps which spin very fast, generate massive heat, and wear out quickly. A 'Triplex' pump (like the one on this DEWALT) uses three commercial ceramic plungers connected to a crankshaft. It runs much cooler, is vastly more durable, and can be easily rebuilt by a mechanic, giving it a massive lifespan.

Is 13.25 Litres per minute a lot of water?

Yes! This is true commercial territory. Standard domestic washers only push about 6 or 7 LPM. 13.25 LPM provides a massive, heavy volume of water that is absolutely necessary for rapidly flushing thick mud off tractors and running large concrete surface cleaners.

What does the 'Low Oil Shutdown' feature do?

It is a critical engine protection mechanism. If the engine detects that the oil level has dropped to a dangerously low level, it will automatically shut the 270cc engine down. This completely prevents the engine from seizing and destroying itself.

Can I use this machine to wash my personal car?

You must be incredibly careful. 3800 PSI is devastatingly powerful and will violently strip the clear coat and paint off a car if you use a narrow nozzle. You MUST use the widest white 40-degree nozzle, stand well back, and avoid pointing it directly at tires or plastic trims.

Is the 15-metre hose difficult to manage?

While 15 metres is very long and features stiff steel-braiding to prevent blowouts, the massive advantage is that you can leave the heavy, noisy engine block at the front of a house while you walk the hose all the way into the backyard to clean.

Does it require oil before I start it?

Absolutely. The machine is shipped DRY to prevent dangerous oil spills during transit. You MUST fill the DEWALT engine with the correct 4-stroke engine oil, and check the pump oil reservoir, before attempting to start it.

Can I pump hot water into this machine?

No. This DEWALT is explicitly designed as a 'Cold Water' pressure washer. Pumping boiling hot water into the Triplex pump will instantly melt the high-pressure water seals inside the brass head.

Are the 5 quick-connect nozzles included?

Yes. The machine arrives with 5 color-coded nozzles (0º, 15º, 25º, 40º, and a black Soap nozzle). You simply pull back the brass collar on the end of the lance and snap the nozzle you need into place instantly.

Is this machine heavy?

Yes, because it features a massive 270cc commercial engine and a solid brass Triplex pump, it is very heavy. However, the heavy-gauge welded steel frame is perfectly balanced on large pneumatic tyres, making it surprisingly easy to wheel around a flat jobsite.

How do I apply soap with this?

The AAA Triplex pump features an integrated chemical injector barb. You attach a clear plastic tube to it, drop the other end into a bucket of detergent, and attach the Black nozzle to the gun. The machine will automatically suck up the soap and spray it at low pressure.

Can I run a 20-inch surface cleaner with this?

Yes! Because it produces 3800 PSI and an incredibly strong 13.25 LPM, this machine provides the exact kinetic specifications required to flawlessly run a massive 20-inch commercial concrete surface cleaner without bogging down.

Do you offer trade pricing for commercial contractors?

Yes, Freshway Supplies provides highly competitive volume pricing and trade accounts for heavy earthmoving contractors, commercial exterior cleaners, and agricultural facilities. Contact us to establish your account.

Trusted by over 1,000 + Customers

Join thousands who rely on our products and service—real results and proven satisfaction.

RELATED PRODUCTS

G
Freshway Supplies
Gino Calvisi

Excellent service

Great range of products, great prices. Fast delivery. Highly recommend.

Excellent product easy to use very handy to use all areas of the house

Very efficient. Received goods within 2 days.

H
Freshway Supplies
Helen Henshaw

Had exactly what I needed and where very quick to post to me. Will shop with them again when needed.

C
Freshway Supplies
Chris CUMMINS (cummo06)

Great company to deal with.. fast, efficient, will be using again.

M
Freshway Supplies
Melissa Abraham

They earned it! I hardly ever leave reviews, but Abe absolutely deserves this one.

I rang ready to spend nearly $2,000. Unfortunately, the item wasn’t in stock for pickup and would take seven days to arrive. Abe said he’d call me back.

Five minutes later, he had found one in stock at another business in Parramatta — and negotiated the same discount for me there.
He had just lost the sale, yet he was genuinely happy he could help. That says everything.

This is how an excellent reputation is earned: day by day, customer by customer. Could not possibly ask for more.

Thank you, Abe — AWESOME service!

Great product & service.

Easy purchase! This has given my original
Dyson vacuum cleaner a second lease of life! I am very happy!

I
Freshway Supplies
Ian Childs

Freshway is the best place to get your CRL glass cleaner..

K
Freshway Supplies
Kaye Mary Walsh (2273kaye)

A ' No fuss'professional seller, who provides a remarkably quick postage. Thanks very much.

R
Freshway Supplies
Robyn Neilson

Very prompt and courteous when there was a issue.

A
Freshway Supplies
Albert Lewis

Excellent service, and knowledgeable staff, two very rare things to find this days.

W
Freshway Supplies
Wesley Giddings

Super fast shipping, and grate service

Great selection of products, super fast arrival. Very happy, thanks guys!

G
Freshway Supplies
Gayle Coward

Easy transaction

B
Freshway Supplies
Bruce Kilby

Good delivery and price

C
Freshway Supplies
Cassarina Duckett

None

Shopping experience was great, website easytonavigate

quick delivery

Fast delivery very happy and will definitely use this company again

Very pleased

A
Freshway Supplies
Annette Nelson

Always delivers on time at good cost.

T
Freshway Supplies
Tyler Leon

Great customer service and very helpful. Had trouble with a lawn mower and the worker downstairs was very helpful and explained how it all works and what problems to look out for and what to keep an eye on when it’s ready for a change. Will definitely be coming back.

Thank you, Tyler! We’re so glad our team could help and make everything clear for you. Really appreciate your support, and we look forward to seeing you again! 😊

M
Freshway Supplies
Melissa Garcia

Very good!

Thank you, Melissa! We really appreciate your feedback and support 😊

N
Freshway Supplies
NICK HADJIANGELI

The best service ever

Thank you so much for your kind words, Nick! We truly appreciate your support and are thrilled to hear you had such a great experience with our service. We look forward to helping you again soon! 😊

D
Freshway Supplies
Declan Glover

I have been using Freshway for 10+ years for all cleaning supplies and repairs. These guys will provide you with service so good you will drive past other supply stores to come here.

Thank you so much for your continued support over the past 10+ years, Declan!
We truly appreciate your loyalty and kind words. It means a lot to know our service and team keep you coming back. We look forward to supporting you for many more years to come.

Great experience with Freshway Cleaning Supplies! The team is super friendly and helpful, and their products are really good quality. Orders are always on time and well-packed. Definitely recommend them if you’re looking for reliable cleaning supplies and great service!

Thank you so much for the wonderful review!
We’re really glad to hear you had a great experience with our friendly team and that you’re happy with the quality of our products and service. Your recommendation means a lot to us, and we truly appreciate your support.

Great service, great products , first visit got what I was after ringing other cleaning businesses with know success, definitely be returning,
Abe’s personality and sevice was second to none

Thank you for the great review!
We’re so glad your first visit was a success and that you found exactly what you were looking for. Abe will be thrilled to hear your kind words — his service and personality are something we’re very proud of. We look forward to welcoming you back again soon!

Extremely helpful staff, very good prices, huge stock. Thank you guys!

Thank you for your kind words!
We’re really happy to hear you found our team helpful and were happy with our pricing and range. We truly appreciate your support and hope to see you again soon!

M
Freshway Supplies
Maricar Schofield

Complete with all cleaning products and equipments you’ll need

Thank you for your review!
We’re glad to hear you found everything you needed in one place. We appreciate your support and look forward to helping you again in the future.

C
Freshway Supplies
Christopher Raheb

Fantastic customer service very very competitive pricing, just don’t tell them that. Didn’t try to up sell anything and gave frank informative advisers

Thanks so much, Christopher! We really appreciate your kind words and are thrilled to hear you had a great experience with our team. We always aim to provide honest advice and fair pricing - glad it came through! Looking forward to helping you again soon.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare