Hyundai HYW4000DE 4000psi 15L/min 498cc Diesel Pressure Washer

£1,619.99 (inc VAT)
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Lead Time: On back order with Hyundai Power Products UK distributor

The powerful HYW4000DE is a heavy-duty diesel power washer from Hyundai. This high-pressure jet washer is perfect for cleaning professionals in industrial, agricultural, heavy plant and commercial environments.

Producing an adjustable continuous working output pressure up to 250 bar / 3600psi and a maximum pressure of 4000psi with a 900 litres per hour flow rate.

Fitted with a 12hp, 498cc Hyundai air-cooled OHV direct injection D500E diesel engine, this drives the HYW4000DE's extremely reliable and high-quality Annovi Reverberi (AR) Triplex Pump with ceramic pistons. Featuring electric key-start, this pressure washer is so easier than ever before to get started. It even has a back-up recoil pull-start should you ever need it for added reliability and also ensures you can always get the job done.

The large 5.5 litre fuel tank can be filled with red diesel which is significantly more cost-effective than standard road diesel and fuel consumption is an economical - 1 to 1.5 litres an hour.

Hyundai diesel jet washers use Annovi Reverberi (AR) high pressure pumps on their engine driven pressure washers to ensure maximum performance and longevity. Annovi Reverberi (AR) is one of the world leaders in pressure washer pump manufacture.

Both the pump and engine are mounted on an anti-vibration rubber mounted subframe to mimimise noise output and increase stability. Weighing 135kg, the HYW4000DE is built with a heavy-duty powder-coated tubular steel trolley design frame, with its large, ergonomic handlebar making it very easy to move around.

The built-in hose and lance gun holder will help keep everything organised when moving between jobs, and also makes it convenient to store all together. The quick-release couplings on the pump, hose and trigger gun allow you to quickly fit everything together to get started on the job at hand and also to add additional hoses as required. 

The HYW4000DE is a cold water pressure washer that is used with mains water or can also be gravity fed. It is able to draw water uphill 1.5m, allowing water to be taken from a water butt - no need for an outside tap, making it ideal for use during hosepipe bans.

The in-built low-pressure liquid detergent injection system ensures cleaning fluid can be concentrated into the water flow easily and efficiently, providing a thorough clean.

Ideal for cleaning farm machinery, heavy plant and commercial vehicles, skips, wheelie bins, terraces, porches, patios, swimming pools, driveways, patios, and more, this 4000psi diesel pressure washer has a huge range of use in industrial, agricultural and commercial environments.

The HYW4000DE is incredibly user-friendly with low service and maintenance requirements and has full Hyundai UK service and parts back up. It also has in-built low oil protection to shut down the engine when oil levels run low to protect it from any damage.

In The Box:-

  • HYW4000DE pressure washer
  • 15m hose
  • Quick connection trigger gun
  • High pressure lance
  • Turbo nozzle
  • Selection of standard nozzles
  • User manual
More Information
Brand Hyundai
Engine Hyundai
Engine Model D500E
Engine Type Diesel, OHV, air-cooled
Displacement 498cc
Horsepower 12hp
Rated Power Output 8.8kW @ 3400rpm
Start Method Electric
Fuel Tank Capacity 5.5L
Fuel Consumption 1-1.5L/hr
Oil Tank Capacity 1.75L
Battery 36Ah
Drive Direct
Mains Water Supply Yes
Draw From Barrel Yes (2m)
Gravity Feed Yes
Cylinder Volume 0.498L
Pump Annovi Reverberi AR RSV4G40 Triplex
Maximum Pressure 4000psi / 275 bar
Maximum Flow Rate 15L/min
Built-In Detergent Tank No
Hose Length 15m
Frame Powder-coated, tubular steel
Wheels 4, foam-filled, puncture-proof
Includes Interchangeable standard nozzles, turbo nozzle, 15m hose, lance gun, user manual
Weight 135.0kg
Assembled Dimensions L: 80cm x W: 63cm x H: 108cm
Packaging Dimensions L: 66cm x W: 64cm x H: 81cm
Global Trade Item Number 5056275799243
Warranty 1 year for domestic use
Promotional Image /h/y/hyundai-1-year-domestic-warranty_7.jpg


Hyundai Power Equipment is the trading name of  Genpower Ltd. Solely distributed by Genpower, the Hyundai Power Equipment range is in good hands. A year after founding the business in 2006, Genpower was approached and awarded the contract to become the sole importer for Hyundai Power Equipment for the United Kingdom by Hyundai Corporation, Korea, based on the knowledge and machinery sales, as well as engineering, support and maintenance expertise. Sold through a large and growing network of dealers throughout the UK and Ireland, the presence of Hyundai has never been so widely felt or as far reached.
Hyundai offers petrol generators from 1kW to 10kW and diesel generators from 5kW to 100kW. The company also imports Hyundai petrol water pumps, air compressors and garden machinery.
Designed specifically for residential, estate and amenity users, the garden machinery range includes lawn mowers, grass trimmers, brush cutters, hedge trimmers, chainsaws, leaf blowers and vacuums, as well as a brand new range of petrol-engined pressure washers, adding around 20 new products to Hyundai Power Equipment’s existing generator, air compressor and water pump line-up.
Hyundai Power Products has recently launched HYUNDAI SUPPORT where you can get answers direct from the manufacturer to a range of product questions or get in touch if you have an issue.
Hyundai - Beyond Boundaries




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Hyundai HYW4000DE 4000psi 15L/min 498cc Diesel Pressure Washer
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