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The best post-Amazon Prime Day deals on Karcher pressure washers - save on the K2, K4 before they end

  • Parkers has found the best Karcher pressure washer deals
  • Upgrade your pressure washer for the spring clean
  • Prime Day has ended, but you can still save 

Written by Alex Boyd Updated: 14 July 2025

Amazon Prime Day is the ideal opportunity to upgrade your pressure washer. We found the best Karcher pressure washer deals to get you a premium brand at an affordable price during the Prime Day sales event, which while it’s ended, there are still some deals lingering around the famous yellow machines.

A name synonymous with what it is, like Transit or Biro, Karcher pressure washers have built up a reputation for durability, performance and excellent cleaning abilities. Resplendent in the iconic shade of yellow, Karcher pressure washers are traditionally viewed as premium tools, but there are always great deals especially during Amazon sales.

Whether you’re after an entry-level Compact model that won’t take up too much room or a top-of-the-range example that will tackle all manner of dirt and debris, we’ll be hard at work finding the best deals when Prime Day kicks off. A pressure washer is the ultimate car cleaning upgrade and infinitely useful for outdoor maintenance, so now is the perfect time to pick up a bargain one.

When is the next Amazon Prime Day?

Amazon haven’t officially announced dates, but the next Prime Day event usually takes place in early-to-mid October – usually under the name Prime Deal Days. It’s the last Prime event before Black Friday arrives in November.

The best Karcher pressure washer deals

Save 34%
Karcher K2 next to Range Rover Sport
Karcher K2 next to Range Rover Sport
Price: £99.00 (was £149.99)
From muddy bikes to dirty garden furniture, the K2 Power Control makes light work of any cleaning tasks around the car and garden. It even includes a patio cleaner and cleaning solution. It's currently 37% off, but that deal won't last long.

Pros

Cons

11% off
Karcher K2 Horizontal pressure washer
Karcher K2 Horizontal pressure washer
Price: £79.99 (was £89.99)
The most compact version of any corded Karcher pressure washer, the K2 Horizontal still boasts the same 360l/h, 110-Bar flow rate and pressure as its larger siblings but comes in a package that's cheaper and easier to store.
Save 15%
Karcher K7 pressure washer standing upright
Karcher K7 pressure washer standing upright
Price: £399.99 (was £469.99)
With 550l/h of flow rate on tap as well as a massive 180 Bar of pressure, this beast of a machine is the flagship of the Karcher range, excluding all the professional-grade stuff used by businesses. Now at a healthy discount thanks to Amazon's Prime Day sales event.
Save 19%
Karcher K4 Power Control
Karcher K4 Power Control
Price: £195.99 (was £229.99)
The K4 Power Control boasts 420 litres per-hour at 130 Bar of pressure. This kit comes with two spray lances, but no patio cleaner or other extras included.
Save 11%
Karcher K2 Classic
Karcher K2 Classic
Price: £89.00 was £99.99
This model of K2 sits above the Horizontal model and below the Power Control. It still boasts the same capabilities with 360 l/h at 110 Bar of pressure, while being packed in a slightly more compact design.
22% off
Karcher VC6 Cordless Vacuum
Karcher VC6 Cordless Vacuum
Price: £179.99 (was £319.99)
Okay, it's not a pressure washer per-sae, but this near half-price deal on Karcher's cordless vacuum cleaner is too good to miss. It weighs only 2.8kg, runs for up to 50-minutes and includes both crevice and dust attachments. Perfect for the home and car.

FAQs

  • What is Karcher?

    Founded in 1935, Karcher is a German company that originally manufactured aircraft engine warmers before switching to more general warming equipment and then on to cleaning equipment. Since its first foray into the world of domestic pressure washers in 1984, Karcher has been an industry leader and a safe pair of hands whenever water needs pressurising.

  • How do I use my Karcher pressure washer properly?

    • Make sure you test on an inconspicuous area before cleaning. This can help gauge whether the surface to right to be power washed.
    • Don't stand too close to the object you're cleaning. If you do, delicate surfaces can be damaged.
    • Select the correct nozzle for the task at hand. Narrow nozzles deliver more power and are best for baked-on muck, while wider nozzles cover a larger surface area.
    • Make sure you're using the correct pressure washer attachment for the job. This can prevent damage and give better results.

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