New in
Save £26.40
Hawk Gear 7HP Petrol Pressure Washer 3000 PSI High Power Jet Cleaner Water Spray
In stock — ship 1-3 days
£237.59 £263.99
Added to basket
Petrol-driven jet washers for jobs beyond the reach of a mains socket — driveways, patios, farm yards, plant and vehicles. 3000 PSI and 3800 PSI models, plus replacement pumps.
In stock — ship 1-3 days
£237.59 £263.99
In stock — ship 1-3 days
£273.23 £303.59
In stock — ship 1-3 days
£71.27 £79.19
In stock — ship 1-3 days
£11.81 £13.12
Buy petrol for one reason: you need to clean somewhere there is no mains socket, or you need more power than 13 amps can deliver. Farm yards, building sites, long driveways, plant and machinery, and anything where dragging an extension lead 30 metres is the actual problem. Electric is quieter, lighter, cheaper and perfectly adequate for washing a car on a driveway. If you are only doing the car, you do not need petrol.
Pressure (PSI or bar) lifts the dirt. Flow rate (litres per minute) carries it away — and it is flow that determines how fast you actually finish a driveway. A high-PSI machine with poor flow cuts a narrow stripe and takes all afternoon. PSI is the number manufacturers advertise because it is the bigger figure, so check both before comparing on headline pressure alone.
3000 PSI handles domestic driveways, patios, decking, fencing and vehicles. 3800 PSI is for hardstanding, farm and site work — heavy oil, ingrained algae, plant and machinery. More pressure is not always better: high pressure will strip soft render, lift the surface off tarmac, force water behind pointing and take the paint off a car. Start at distance with a wide nozzle and work in.
A petrol washer will out-draw a slow garden tap, and running one dry damages the pump within seconds. Confirm your tap delivers enough flow to keep up, or feed the machine from a butt or tank if it is rated to draw by suction.
Engines are generally reliable; pumps are what wear out, and a pump failure usually means a scrapped machine unless a replacement is available. We stock an aluminium replacement pump covering 6.5–8.5HP engines and 2200–3800 PSI, which is worth knowing before you buy a washer that cannot be repaired. Store it drained over winter — a frozen pump is the most common way these machines die.
Most machines ship with a set of colour-coded nozzles: a narrow 0° pencil jet for stubborn spots, 15° and 25° for general work, 40° wide fan for rinsing and delicate surfaces, and a low-pressure soap nozzle. Using the 0° on a car or on soft masonry is how damage happens. Wide first, narrow only if you need it.
Last reviewed August 2026.
| Job | Machine | From |
|---|---|---|
| Driveways, patios, decking, fencing | 7HP, 3000 PSI | £237.59 |
| Vehicles, vans and horseboxes | 7HP, 3000 PSI — wide nozzle, keep your distance | £237.59 |
| Farm yards, hardstanding, plant | 3800 PSI, Loncin engine | £273.23 |
| Repairing an existing machine | Aluminium pump, 6.5–8.5HP, 2200–3800 PSI | £71.27 |
| Washing one car on a driveway | An electric washer is enough — petrol is overkill | — |
Only if you need to clean away from a mains socket, or need more power than a 13 amp supply can give. Farm yards, sites, long driveways, plant and machinery. For washing a car on a driveway, an electric machine is quieter, lighter, cheaper and entirely adequate.
No. Pressure lifts dirt but flow rate carries it away, and flow is what decides how quickly you finish a driveway. High pressure will also strip soft render, lift the surface off tarmac, force water behind pointing and remove paint. Compare flow rate as well as PSI, and start wide.
No. Petrol engines produce carbon monoxide, which is colourless, odourless and can kill in an enclosed space. Use outdoors in open air only, well away from windows and doors, and refuel with the engine off and cool.
Check the product page for your model. Some petrol washers can draw from a tank by suction; others need a pressurised mains feed. Confirm before you buy if you plan to feed from a butt or bowser — running a pump dry damages it within seconds.
Pumps wear out long before engines do, and on many budget machines a pump failure means scrapping the whole unit. We stock a replacement aluminium pump covering 6.5–8.5HP engines and 2200–3800 PSI. Draining the pump before winter is the single best thing you can do to avoid needing one.
Yes, with care. Use the wide 40° nozzle, keep at least 30cm from the paintwork, and never use the 0° pencil jet on a vehicle. Avoid pointing directly at seals, badges and wheel bearings.
Yes. Every order ships free to any UK mainland address — no minimum spend. Most in-stock items dispatch within 1–3 working days, and free 30-day returns are included on all orders.
