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Evopower EPW275/10AR-DE 4000psi Diesel Pressure Washer Inc. Hose Reel

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  • Max Pressure: 3988psi
  • Power: 10hp Engine
  • Weight: 110kg
  • Optional hose reel included
  • Discount for buying both together
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£979.00 exc. VAT £1,174.80 inc. VAT


The EPW275-10AR/DE is an electric start, 10 hp diesel driven pressure washer with a maximum output of 275bar or 4000psi. It comes with an Italian-made Annovi Reverberi Triplex professional triplex pump, and this washer is built to be put to work on commercial cleaning jobs and is of an industrial quality.

The pump comes with a brass head  and ceramic pistons which helps with crack resistance and is generally much more hard wearing than the aliminium pumps found on a large proportion of pressure washers. Coupled with the brass head pump, theceramic pistons can also help stop rusting or wear, especially when using detergent. It is powered by the Hyundai D400, which is a 10hp, 420cc, direct injection diesel engine, which is more economical to run and can also prolong the lifespan of the machine. Being a Hyundai engine, this ensures the driving force of this pressure washer is reliable and long lasting. The engine itself has electric key start with a heavy duty 36ah sealed battery, making it a pleasure to start and work with continuously.

Like all other pressure washers in the Evopower range, it has a thermal relief valve for pump protection against heat. t's a failsafe mechanism for machines that have been left running without the trigger on the lance being fired. The valve dispenses the water that circulates around the pump and gets hot, and replaces it with cooler water. This is because process can be damaging to the pump innerds so the thermal valve helps to make sure this doesn't happen. It comes with a rugged 4 wheel tubular frame with lifting hook. It has bronze conrods for longer life and can draw from a barrel if gravity feeding.

It has a 15m high pressure hose, 3m suction hose, fitted suction filter, turbo nozzle and 5 standard quick release nozzles included in the package. It can also be fitted with an optional hose reel.

It also has a detergent foam injection and a parking brake for safety.

Diesel pressure washers are also known for their fuel economy, with typical running costs around 1 to 1.5 litres an hour at 70 pence a litre for red diesel. (Compared to a petrol pressure washer running at 2 litres an hour at £1.40 per litre) meaning that you can get upto a 75% saving in fuel costs.

The rugged tubular steel frame with heavy duty wheels and tyres, as well as lifting hook is designed to last and protect the engine and pump and it comes fully tested and inspected, filled with oil ready for us, and all you need to do is just add diesel and it's ready to use.

Below is a list of key terms for this pressure washer, explained in a little more detail:

Brass Pump Cylinder Head

High pressure pumps can have cylinder heads made from either aluminium or brass. The forged brass pump head is by far the best option, giving a longer lifespan and greater resistance against cracks due to frost damage. N.B. whatever type of pressure washer you have, it is advisable to prevent frost damage by not storing in areas that will have a temperature drop below zero Celsius.

Thermal Relief Valve

This is to protect the pump from over heating. The pump will not over heat when in normal use, however, with all petrol and diesel engine driven pressure washers, when the trigger on the lance is released and you are not pressure jetting, the engine continues to run, but there is no flow of cool water through the pump. This flow of water keeps the pump cool and also lubricates the seals. When you are not jetting, the pump continues to pump, but the flow of water through the trigger gun is stopped, so the water in the pump body is re-circulated around the pump, this water gains heat after a few minutes. The thermal relief valve will release valve the hot water when it reaches 60 degrees Celsius, this is replaced with cool water and prevents damage to the pump and seals. It is good practice and saves fuel to always switch the engine off when you stop jetting for more than a few minutes.

Ceramic Pistons

Each triplex pump has three ceramic pistons. Ceramic pistons offer a far greater lifespan than stainless steel or aluminium pistons. They also increase the life of the seals, as they have a smoother surface.

Adjustable Pressure

The pressure is adjustable from zero to the maximum of 3600psi. The adjuster features forged brass housing and stainless steel banjo bolts, attaching the external unloader valve to the brass head.

Chemical Injection

The outlet of the pump unloader valve has a chemical hose connector. The chemical  function is activated when the black low pressure nozzle is used in the end of the lance.  This would be used to spray a vehicle with detergent, then the high pressure nozzle would be used to jet the detergent off the vehicle.

Bronze Connecting Rods

The connecting rods are a highly stressed component connecting the ceramic piston and the steel crankshaft. For commercial use machines it is essential that the con-rods are made from bronze. Lower quality pumps often have aluminium connecting rods, which are not designed for long periods of use. Bronze is a lot stronger and has better lubricating properties.



Manufacturer Evopower
Starting Method Electric
Engine Manufacturer Hyundai
Engine Model D420
Engine Capacity (cc) 418.00
Engine Oil 15w40
Oil Capacity (l) 1.75
Fueled/Driven by Diesel
Max Pressure (PSI) 3988.00
Max Pressure (Bar) 275.00
Continuous Presssure (PSI) 3200.00
Continuous Pressure (Bar) 220.00
Pump Italian AR
Flow Rate (l/hr) 900.00
Fuel Tank Capacity (l) 5.00
Maximum Run Time (hr) 4.50
Inc. Accessories 15m Hose. worth £70.80, 5 Face Masks. worth £5, 5 Nozzles. worth £14.40, Detergent Suction Hose. worth £3.99, Ear Plugs. worth £2.50, Garden Hose Adaptor. worth £2.99, Hi-Vis Waistcoat. worth £7.50, Protective Gloves. worth £5, Rain Suit. worth £9.99, Safety Glasses. worth £7.50, Suction hose. worth £19.99, Trigger Gun and Lance. worth £45.60, Turbo Nozzle. worth £29.99
Warranty 1 year parts and labour

 We provide FREE SHIPPING (terms apply) to mainland UK addresses on the majority of items.

Pricing for extended shipping areas like Northern Ireland, the Scottish Highlands and outlying Islands (the Outer Hebrides, Channel Islands, Isle of Man, Scilly Isles, etc) will incur a surcharge.

Please note: Very small items like spare parts will carry a cost for shipping, as will very large or heavy items like our 1500rpm diesel generators.

Feel free to contact us on 01437 700 123 or via live chat if you have any questions before ordering. 

If you place an order for an extended area, a small part or a large item which requires a postage fee we will contact you to discuss.

For full shipping and delivery terms and conditions, please click here.


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Frequently Asked Questions

Q. please can you give me the overall dimensions of this machine just need to know if it will fit in my van thanks

A. Fully assembled, L: 101 x W: 74 x H: 134 (mm) The washer height is 84mm without the hose reel attached. The trigger gun and lance that comes with this washer has a full length of 110mm, but can be broken down in two

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