Is the Karcher K1800PSB good for washing a car?

Yes. The 15° nozzle and soap nozzle with the detergent tank are the right setup for car washing, and 1,800 PSI is more than enough. Keep the turbo nozzle away from paint and trim.

The washer, a trigger gun and wand, three quick-connect nozzles (15°, turbo, 65° soap), a high-pressure hose and the removable detergent tank. No tools are needed for assembly.

How does it compare with the Karcher K5?

The K5 delivers higher pressure and flow and is built for heavier, more frequent use. The K1800PSB is lighter, cheaper and aimed at occasional homeowner jobs.

Does it come with a hose and cord?

It includes a high-pressure hose for the gun side. It is corded electric, so you supply an outdoor extension cord and a garden hose to the inlet.

When is the K1800PSB cheapest?

Spring and early summer bring the most pressure washer promotions, and fall clearance can match them. At $159.97 at Walmart as of November 5, 2026, it is already near the bottom of its recent range.

Where can I buy the Karcher K1800PSB Cube Electric Pressure Washer?

7 stores we checked sell it, including Home Depot, FactoryPure, Target, Walmart, eBay.

Karcher K1800PSB Cube Electric Pressure Washer

Q: Where is the Karcher K1800PSB Cube Electric Pressure Washer cheapest?

At Walmart, for $159.97, 27% under what the other stores charge, as of our latest check.

Q: What do buyers say about the Karcher K1800PSB Cube Electric Pressure Washer?

Rated 4.8 out of 5 from 21 ratings.

4.8

Best price now

$159.97at WalmartObserved at 5:33 PM

27% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

Visit Walmart

What reviewers say

4.8 / 521 ratings

Rated 4.8 out of 5 from 21 ratings, buyers treat the K1800PSB as an easy, reliable light-duty washer. The nozzle selection, detergent tank and simple setup come up as the main wins.

What people mention

SetupPraisedOwners say it goes together without tools and is cleaning within minutes.
NozzlesPraisedThe 15°, turbo and soap nozzles cover car washing and patio cleaning well.
Detergent tankPraisedThe removable top tank is easy to fill and rinse after soap jobs.
Flow rateMixed1.2 GPM is fine for cars and furniture but slow on big, grimy surfaces.
BuildMixedThe plastic housing and fittings feel light-duty to some owners.

About the Karcher K1800PSB Cube Electric Pressure Washer

The Karcher K1800PSB is a versatile electric pressure washer ideal for all-around cleaning. With a 1800 Psi CETA certified TruPressure output and a Gpm of 1.2, this power washer is easy to use for any homeowner and offers convenient features for efficient cleaning. The kit includes three different spray nozzles with a universal quick-connect fitting: a 15 Deg nozzle for regular cleaning tasks, a turbo nozzle for intense cleaning power, and a 65 Deg soap nozzle for applying detergent and achieving a sparkling finish. The integrated detergent tank on the top of the unit makes it easy to apply your favorite pressure washer detergents. For added convenience, the detergent tank is removable to fill and clean when needed. Thanks to the three different nozzles, the K1800PSB can be used to clean cars, patios, fencing, decks, and much more. Convenient features like onboard storage, a cord wrap, and never-flat tires offer ease of use and storage. No tools are needed for the assembly of the K1800PSB, so you can start cleaning as soon as it arrives. The on/off foot switch provides easy power control, allowing you to turn the pressure washer on and off with a simple tap of your foot. Water flow is controlled separately through the trigger gun.