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Dapper Supply DP-CPW1140 4350 PSI Hot Water Gas Pressure Washer
Authorized dealerSKU: DP-CPW1140In stock$4,640.00
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+1 (978) 295-7538DP-CPW1140 Gas Hot Water Pressure Washer for Outdoor Jobsite Cleaning
The DP-CPW1140 runs on an 11.8 HP gas engine so it works away from power on construction sites and lots, and a diesel burner heats water to 194°F for grease that cold pressure won't move. It delivers 4,350 PSI at 5.0 GPM for 21,750 cleaning units, enough to strip caked grime off concrete, heavy equipment, and fleet vehicles. A 6.6-gallon fuel tank at roughly 0.55 GPH keeps it running through long outdoor jobs without frequent refueling.
DP-CPW1140 Pressure, Heat, and Runtime
- 4,350 PSI at 5.0 GPM — 21,750 cleaning units cut grease, oil, and heavy buildup on demanding jobsite work
- 194°F Diesel Burner — 204,720 BTU heating brings water hot enough to break down grease on contact
- 11.8 HP (420cc) Gas Engine — electric start with low-oil shutdown for reliable off-grid operation
- 6.6-Gallon Fuel Tank — about 0.55 GPH fuel use for extended runtime between fills
- Water-Cooled Triplex Pump — a direct-drive plunger pump holds steady pressure through long shifts
- 50 ft Hose Rated to 8,700 PSI — an insulated wand plus 0°, 15°, 25°, and 40° quick-connect tips cover close and broad work
- Powder-Coated Steel Frame — 9.5 in. flat-free wheels roll it across rough ground; 3/8 in. quick-connect fittings take standard accessories
- Safety Systems — pressure relief, thermal protection, and emergency shutoff; CE certified with 95 dB operation and a 1-year warranty
DP-CPW1140 Applications and Environments
Construction and site-service crews use the DP-CPW1140 where there is no power to plug into, running the gas engine to clean concrete, forms, and heavy equipment. Fleet and heavy-truck operators strip road grime and grease off chassis and undercarriages with 194°F water at 4,350 PSI. Agriculture and equipment-rental businesses clean tractors, implements, and pens on regular maintenance schedules. Facility and municipal crews handle exterior surfaces, dumpster pads, and lots where embedded grime needs hot high-pressure water. Because the engine runs at 95 dB and vents exhaust, it is built for outdoor and open-air work rather than enclosed rooms. The 6.6-gallon tank and rolling steel frame let one operator move around a site and work through large jobs without a power hookup or constant refueling.
Specifications
| Specification | Detail |
| Brand | Dapper Supply |
| Type | Gas Hot Water Pressure Washer |
| Pressure | 4,350 PSI |
| Flow Rate | 5.0 GPM |
| Cleaning Units | 21,750 |
| Heat Temperature | 194°F (Diesel Burner) |
| Burner Output | 204,720 BTU |
| Engine | 11.8 HP (420cc) Gas, Electric Start |
| Fuel Tank | 6.6 Gallon |
| Fuel Consumption | ~0.55 GPH |
| Pump | Water-Cooled Triplex Plunger |
| Hose Length | 50 ft (8,700 PSI rated) |
| Nozzles | 0°, 15°, 25°, 40° Quick-Connect |
| Noise Level | 95 dB |
| Warranty | 1-Year Parts & Labor |
What's in the Box
- 50 ft high-pressure hose (8,700 PSI rated)
- Insulated wand
- Long lance gun
- 0°, 15°, 25°, 40° quick-connect spray tips
Manufacturer's Warranty
This product comes with a full manufacturer's warranty. All warranty claims are handled directly by the manufacturer.
For specific warranty details, please contact us at +1 (978) 295-7538 or email info@uscleaningtools.com
B2B & Tax-Exempt Purchases
We supply contractors, restoration companies, property managers, schools, government agencies, and other tax-exempt organizations.
How to place a tax-exempt order:
- Write to us through our Contact Us page or email info@uscleaningtools.com and attach your valid tax exemption certificate (state resale or exemption certificate).
- We verify your certificate and mark your account tax-exempt — usually within one business day.
- Place your order and sales tax will not be charged.
For volume pricing or purchase orders, call +1 (978) 295-7538.
Shipping & Returns
Free shipping on most brands for orders over $300, delivered to the lower 48 states. Any brand-specific freight rate is shown at checkout before you pay.
Processing & delivery: in-stock orders ship in 2–7 business days. Tracking is emailed within 24 hours of shipment. Built-to-order equipment shows its lead time on this page.
Freight deliveries: inspect your equipment on arrival and note any damage on the delivery receipt. Items damaged in transit or defective on arrival are fully covered at no cost to you.
Cancellations: cancel any time before your order ships. Refunds are issued for the order total minus a non-refundable payment processing fee, which may apply, so a cancellation is not always a 100% refund. No fee is deducted if we cancel the order or the item arrives damaged or defective.
30-day returns: return unused equipment in its original packaging within 30 days of delivery. Change-of-mind returns are subject to a restocking fee. To start a return, email info@uscleaningtools.com or call +1 (978) 295-7538.
$4,640.00
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Commonly paired with the Dapper Supply DP-CPW1140 4350 PSI Hot Water Gas Pressure Washer
Frequently Asked Questions
How the Dapper Supply DP-CPW1140 4350 PSI Hot Water Gas Pressure Washer Compares to Other Dapper Supply pressure washers
Every Dapper Supply pressure washer we carry, side by side. Not sure which size fits the job? Call +1 (978) 295-7538.
| Model |
This model 
Dapper Supply DP-CPW1140 4350 PSI Hot Water Gas Pressure Washer | 
Dapper Supply DP-CPW1139 2600 PSI Electric Hot Water Pressure Washer |
|---|---|---|
| Price | $4,640 | $3,499.95 |
| Pressure | 4,350 PSI | 2,600 PSI |
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