1 14
Product / Pressure Washers / 5640DG

3,500 PSI 5.2 GPM Hot Water Diesel Pressure Washer Skid with General Triplex Pump - 5640DG

3,500 PSI 5.2 GPM Hot Water Diesel Pressure Washer Skid with General Triplex Pump - 5640DG

Specifications

FRAME

Built-In Truck Mount Brackets

ENGINE

Diesel Kohler KDW702

CC

686CC

PSI

3,500

GPM

5.2

UNLOADER

External

SERIES

Industrial

WARRANTY

Engine: 2 Years / Pump: 5 Years / Burner: 3 Years

ENGINE START

Electric

PUMP MODEL

General TSF2021

PUMP TYPE

Triplex

Hose Length

50'

MAX TEMPRATURE

93°C / 200°F

MATERIAL

Powder Coated

Nozzles Included

25° & 40°

Oil Type

30W Non-Detergent

Weight

925 lbs

View full details

PRODUCT

DESCRIPTION

Industrial Hot Water Cleaning Power with Diesel KDW702 and Belt-Driven Triplex Pump

The BE Power Equipment 5640DG Hot Water Pressure Washer Skid is engineered for professionals who need reliable heat, consistent pressure, and durable construction in a compact industrial hot-water system. Delivering 3,500 PSI at 5.2 GPM, the 5640DG provides the ideal balance of pressure, flow, and temperature for demanding commercial and industrial cleaning applications.

Powered by a diesel KDW702 686cc electric start engine and paired with an industrial-grade General triplex pump, the 5640DG is designed for continuous operation in tough environments. A 12V Beckett burner, high-efficiency heating coil, and adjustable thermostat allow the system to deliver hot water up to 93°C / 200°F, dramatically improving cleaning performance when tackling grease, oil, and heavy contamination.

Mounted on a heavy-duty powder-coated steel skid, this unit is designed for truck or trailer installation and is plumbed for mobile water tank use with bypass return—making it a dependable solution for professional mobile cleaning operations.

Built for Serious Industrial and Mobile Cleaning

The 5640DG hot water pressure washer skid is purpose-built for industrial, commercial, and fleet environments where heat and reliability are essential. It is ideal for:

  • Industrial facility and plant maintenance

  • Heavy equipment and machinery cleaning

  • Fleet, transport, and trailer washing

  • Oil, grease, and contaminant removal

  • Construction, agricultural, and municipal cleaning

With steady flow and controlled heat, the 5640DG reduces cleaning time, labor effort, and chemical use while delivering consistent, professional-grade results.

Features

Diesel KDW702 Electric Start Engine

At the core of the 5640DG is the diesel KDW702 686cc engine, designed for dependable power, fuel efficiency, and long service life. Diesel engines provide strong torque and extended runtime, making them ideal for professional cleaning applications.

Engine features include:

  • Electric start for easy operation

  • Excellent fuel efficiency for extended runtime

  • Compact design with strong output

  • Built for continuous industrial use

Diesel power ensures reliable performance in demanding environments where downtime is not an option.

Industrial Grade General Triplex Pump

Paired with the diesel engine is an industrial-grade General triplex pump (TS2021), built for continuous high-pressure operation. The pump is designed for durability, smooth pressure delivery, and long service life.

Pump features include:

  • Reinforced pump body for strength

  • Forged brass manifold for corrosion resistance

  • Solid ceramic plungers for extended durability

  • Stainless steel check valves

  • External unloader for precise pressure regulation

This triplex pump configuration delivers consistent pressure and dependable performance during long work cycles.

High-Efficiency Hot Water System

The 5640DG hot water system is engineered to deliver reliable heat output for industrial cleaning performance.

Hot water system features include:

  • 12V Beckett burner

  • 350,000 BTU output

  • 175’ x 1/2” Schedule 80 cold-rolled steel heating coil

  • Adjustable thermostat for precise temperature control

  • Maximum water temperature of 93°C / 200°F

  • Stainless steel control panel and burner cover

  • Diagnostic indicator lights for system monitoring

Hot water significantly improves cleaning efficiency when removing grease, oil, and heavy buildup.

External Unloader and Integrated Safety Systems

A heavy-duty external unloader regulates pressure and can be plumbed to bypass water back into a mobile tank, ideal for truck-mounted applications. Integrated safety features include:

  • Pressure relief valve

  • Safety and thermal relief protection

  • Flow and pressure switch

  • Toggle burner switch

  • Inline fuel filter

These systems protect the pump, burner, and components during extended operation.

Heavy-Duty Skid Frame for Truck or Trailer Mounting

The 5640DG is mounted on a powder-coated steel skid frame designed for durability and long service life. The skid design allows for easy mounting to trucks or trailers and provides a stable foundation for mobile cleaning setups.

Product Details

Model: 5640DG
Pressure: 3,500 PSI
Flow Rate: 5.2 GPM
Engine: Diesel KDW702, 686cc
Start Type: Electric
Pump: General Triplex Pump TS2021
Pump Class: P8
Burner: 12V Beckett
Maximum Temperature: 93°C / 200°F
BTU Output: 350,000
Heating Coil: 175’ x 1/2” Schedule 80 cold-rolled steel
Burner Fuel Tank: 45.42 L / 12 gal black poly
Engine Fuel Tank: 45.42 L / 12 gal
Thermostat: Adjustable
Hour Meter: Yes
Flow / Pressure Switch: Yes
Pressure Relief Valve: Yes
Diagnostic Lights: Yes
Burner Switch: Toggle
Inline Fuel Filter: Yes
Oil Drain Hoses: Engine: No • Pump: No
Adjustable Injector: Optional
Unloader: External

Warranty Coverage

  • Engine: 3 Years

  • Pump: 5 Years

  • Burner: 3 Years

  • Coil: Lifetime

Shipping Information

Shipping Weight: 1,205 lbs
Shipping Dimensions (L × W × H): 61” × 53” × 64”

Factory Tested for Performance

Each BE Power Equipment hot water pressure washer is fully tested at the factory before shipping. Units may contain residual oil or fuel odor, confirming that the system has passed quality inspections and is ready for operation.

Built to Clean Hotter — Trusted by Professionals

For professionals who need dependable heat, controlled flow, and industrial durability, the 5640DG Hot Water Pressure Washer Skid delivers reliable performance day after day. With a diesel KDW702 engine, General triplex pump, and high-efficiency heating system, it is built to handle demanding cleaning environments with confidence.

5640DG — Industrial heat. Proven diesel power. Professional results.

Help me Choose
my Pressure Washer.

Compare the specifications of your chosen pressure washers to determine the right fit for your application.

Download
5640DG
--- Learn More
--- Learn More
Frame
Built-In Truck Mount Brackets - -
Engine
Diesel Kohler KDW702 - -
Pump Model
General TSF2021 - -
Pump Type
Triplex - -
CC
686CC - -
PSI
3,500 - -
GPM
5.2 - -
Unloader
External - -
Series
Industrial - -
Warranty
Engine: 2 Years / Pump: 5 Years / Burner: 3 Years - -
Engine Start
Electric - -
Hose Length
50' - -
Max Temperature
93°C / 200°F - -
Material
Powder Coated - -
Nozzles Included
25° & 40° - -

Frequently Asked Questions about Pressure Washers

How to store a pressure washer?

To ensure the durability of your heavy duty pressure washer:

  • Empty the gas tank to prevent fuel from degrading or clogging the engine.
  • Empty the pump and hoses of any remaining water.
  • Perform necessary maintenance before storage.
  • Store in a dry area.
  • Cover.

What is a pressure washer?

A power washer is a cleaning machine that uses a gasoline engine to power a high pressure water pump and nozzle. It’s used to clean driveways, decks, vehicles, outdoor furniture and more by spraying water at high PSI to remove dirt, grime, mold and other debris.Many models also come with a detergent tank for added cleaning power.

How does a power washer work?

A power washer works by drawing water from a connected hose and pumping it through a high pressure nozzle. The gas engine powers the pump which pressurizes the water and then expels it through the nozzle at high speed to clean the surface. The water pressure is measured in PSI (pounds per square inch) and the flow rate is measured in GPM (gallons per minute).Many models also feature adjustable water pressure settings to cater to different cleaning needs. BE makes pressure washing easy with models available for light jobs and heavy duty commercial cleaning projects.

Gas vs Electric power washers?

The main difference is that a gas pressure washer, known for its cleaning power, is powered by a gasoline engine, making it more powerful and portable, while an electric pressure washer is powered by electricity and is generally quieter and lighter.

Gas pressure washers are for heavy duty and large areas due to their durability, whereas electric pressure washers are for smaller jobs.

Your BE electric pressure washer is perfect for smaller jobs and built for portability, and we offer a wide range of electric models. Included with our electric models is a long extension cord for use anywhere around your house.

What to consider?

When choosing a gas pressure washer consider:

  • Pressure (PSI): More PSI means more cleaning power but also more potential for damaging delicate surfaces.
  • Flow Rate (GPM): More GPM means faster cleaning as more water is dispensed.
  • Engine Power: Bigger engines mean more durability and power.
  • Portability: Weight, handle design and wheel size for easier to move.
  • Nozzles: Multiple spray nozzles to adjust the spray pattern for different tasks.
  • Adjustable Nozzle: Allows for fine-tuning the spray intensity and pattern for various cleaning needs.

How much pressure do I need for?

The required pressure (PSI) and cleaning power depend on the surface you’re cleaning:

  • Light duty (car washing, outdoor furniture): 1,300-1,800 PSI.
  • Medium duty (patios, fences, decks): 2,000-3,000 PSI.
  • Heavy duty (driveways, brick walls, large equipment): 3,000+ PSI.

Many pressure washers come with adjustable pressure settings to handle different cleaning tasks effectively.

Can a pressure washing damage surfaces?

Yes, a power washer can damage surfaces if used incorrectly. High pressure water can strip paint, dent soft surfaces or even cause structural damage if the pressure is too high or the nozzle is held too close to the surface. Always use the right PSI for the material you’re cleaning and keep a safe distance from delicate surfaces.

To prevent damage, consider using a model with adjustable pressure settings.

How to maintain your pressure washer?

To ensure the durability and smooth operation of a pressure washer:

  • Change the oil as per manufacturer’s instructions.
  • Clean or replace the air filter to ensure good airflow.
  • Inspect and clean the nozzle regularly to prevent clogs.
  • Drain the gas tank if you’re storing the washer for a long time.
  • Check the hoses for leaks or damage and replace them if needed.
  • Follow regular maintenance requirements to keep the washer in optimal condition.

Can I use a pressure washer in cold weather and low water temperature?

You can use a pressure washer in cold weather but it’s more difficult. The water flow rate in the hoses and pump can freeze and damage the equipment. If you plan to use your pressure washer in cold temperatures make sure to winterize it and store it in a warm area when not in use. You can also use anti-freeze solutions for pressure washers.

Some models are designed to use hot water, which can be particularly effective for cleaning in cold weather.

Do I need any accessories?

Common accessories for power washers: