SKU: 204002

| Model: HPW40H

4000 PSI 4 GPM HONDA E-Start Engine Hot Water Pressure Washer with Hose Reel, HPW40H

Name: 4000 PSI 4 GPM HONDA E-Start Engine Hot Water Pressure Washer with Hose Reel, HPW40H
Brand: MechMaxx
SKU: 204002
Price: 4199.0 USD
Availability: InStock
Rating: 5.0 (6 reviews)

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Details

Estimated to ship by Aug 24, 2026. Date is subject to change due to transit delays.

Details

Type : Portable with 13 in Tires, HONDA

Portable with 13 in Tires, HONDA Skid with 175 gal Tank, HONDA Skid with 245 gal Tank, HONDA Portable with 13 in Tires, KOHLER Skid with 175 gal Tank, KOHLER Skid with 245 gal Tank, KOHLER Portable with 13 in Tires, ZONSEN Skid with 175 gal Tank, ZONSEN Skid with 245 gal Tank, ZONSEN

Payment:

315-750-4008

Sales Contact Number

sales@mechmaxx.com

Sales Contact Email

Frequently Bought Together

( 1 Pack / 1 Pcs ) Portable Hot Water Pressure Washer Cover (for SKU: 204002, 204006, 204010)

3/8" x 100' Hot Water High Pressure Hose (for SKU: 204002, 204003, 204004, 204006, 204007, 204008, 204010, 204011, 204012)

4000 PSI Turbo Rotary Nozzle, 4.0 Orifice, 1/4" Quick Connect, for Hot and Cold Pressure Washers (for SKU: 204002, 204003, 204004, 204006, 204007, 204008, 204010, 204011, 204012)

4000 PSI 4 GPM HONDA E-Start Engine Hot Water Pressure Washer with Hose Reel, HPW40H $419900 $4,599.00

( 1 Pack / 1 Pcs ) Portable Hot Water Pressure Washer Cover (for SKU: 204002, 204006, 204010) $5999 $69.99

3/8" x 100' Hot Water High Pressure Hose (for SKU: 204002, 204003, 204004, 204006, 204007, 204008, 204010, 204011, 204012) $18999 $219.99

4000 PSI Turbo Rotary Nozzle, 4.0 Orifice, 1/4" Quick Connect, for Hot and Cold Pressure Washers (for SKU: 204002, 204003, 204004, 204006, 204007, 204008, 204010, 204011, 204012) $6999 $89.99

Total Price

$

Product Overview

Powered by a HONDA GX390 electric-start engine, the MechMaxx HPW40H Hot Water Pressure Washer delivers dependable power and strong hot water cleaning performance for demanding washdown jobs. With 3,500–4,000 PSI pressure, 4.0 GPM flow, and water temperature up to 200°F, it helps remove grease, oil, mud, grime, and heavy buildup more effectively than cold water alone.
The unit is equipped with a triplex plunger pump, diesel-fired heating system, and integrated control panel for stable pressure output and convenient hot water operation. It is suitable for farm, construction, industrial, fleet, and equipment maintenance applications.
Designed as a portable model, this pressure washer features a rugged powder-coated steel frame, 13" pneumatic tires, a handlebar, and a lift hook for easier movement, loading, and transport. Since it runs on gasoline, it can be used wherever a suitable water supply is available, with no external electrical power required.

NOTE!
This machine DOES NOT COME WITH OIL AND GASOLINE in the engine. Before starting, fill the engine with both oil and gasoline. Refer to the engine manual for details.
Maximum pump pressure is 4000 PSI, with the factory working pressure preset to about 3500 PSI.
Please read the PRODUCT MANUAL carefully and review all SAFETY WARNING LABELS on the machine before operation.

Product manual (PDF)

Hot Water Pressure Washer Product manual 1.3.pdf

Engine manual (PDF)

Honda GX390 Manual.pdf

Operation Instruction (PDF)

Quick Operation Guide.pdf

Product Features

With the GX390, you’re looking at some of the best engines in the business. Powerful, reliable, durable, and quiet. Honda’s GX Series is power you can trust. Honda’s GX series engines are legendary for superior reliability and performance. Low noise levels, low vibration, and low emissions – without sacrificing power output or performance.

Electric Start with Battery

Powered by a HONDA GX390 gasoline engine with electric start and a 12V battery, this unit provides easier starting and dependable power for demanding cleaning jobs.

Triplex Plunger Pump

Equipped with a triplex plunger pump, the unit delivers a 4.0 GPM flow rate for powerful cleaning performance. The downstream chemical injection system works with the soap nozzle for detergent application.

Integrated Control Panel

The integrated control panel combines the hot water switch, reset button, indicator lights, and thermostat for convenient operation and temperature control.

Heating Coil

The heating coil crafted from 20mm diameter, 2.5mm thick seamless steel pipes, features a ceramic fiber insulation layer and a stainless steel shell. Ignited by a 12V DC diesel burner, it heats water to approx. 200°F in under 2 minutes. An intelligent temperature control system manages ignition and combustion for stable hot water output.

Rugged Steel Frame

The unit features a rugged 1-1/4'' steel frame with a powder-coated finish for durability and corrosion resistance.

Handlebar, Tires & Lift Hook

A sturdy handlebar, 13'' pneumatic tires, and lift hook make the unit easier to move, load, and transport across shops, farms, driveways, and construction sites.

Rubber Anti-Vibration Pads

Six rubber pads help reduce vibration during operation and protect the frame and components from long-term wear.

Burner Fuel Tank

The onboard 5-gallon diesel burner fuel tank supports extended hot water operation without requiring an external fuel source for the heating system.

Accessories Included

☑3/8'' x 50' High Pressure Hose,
☑0°, 15°, 25°, 40° and Chemical Nozzles,
☑36’’ Spray Gun & Wand Assembly,
☑Hose Reel,
☑Siphon Tube.

Engine	HONDA GX390	Max Temperature	200℉ (93℃)
Engine Type	Single Cylinder, 4 Stroke, Air-Cooled, OHV	Igniter	12V
Displacement	389 cc; 11.7 HP	Burner Fuel	5 US gal (19L) Diesel
Start Type	Electric Start (battery included)	Drive	Direct
Engine Fuel	1.6 US gal Clean, fresh, unleaded gasoline	Pump Type	Triplex Plunger Pump / Oil Bath Crankcase
Engine Oil	0.3 US gal SAE 10W-30	Pump Oil	SAE 10W/30 or 15W/40 Non-detergent Oil
Machine Type	Portable with 13" Pneumatic Tires	Standard Accessories	3/8" x 50' High Pressure Hose; 0°, 15°, 25°, 40° and Chemical Nozzles; 36" Spray Gun & Wand Assembly; Hose Reel; Siphon Tube
Pressure Range	3500-4000 PSI	Package Method	Iron Frame
Flow Rate	4.0 GPM	Packing Size	43.7 x 25.6 x 49.8 in
BTU Per Hour	350,700 BTU	Weight (N.W / G.W.)	450 / 507 lbs