Karcher Replacement O-Ring Kit

Kärcher High‑Pressure Washer O‑Ring Set (2.640‑729.0)

Keep your Kärcher pressure washer running like new with this genuine O‑Ring Replacement Kit. Designed for K2, K3, K4, K5, and K7 series models, this kit prevents leaks, restores full water pressure, and ensures efficient cleaning performance. Perfect for routine maintenance, it includes durable, high-quality seals that are easy to fit on hoses, lances, guns, and accessories. Extend the life of your pressure washer and avoid costly repairs with this essential Kärcher spare part.

Product Overview

This reliable replacement kit contains all the essential seals and O‑rings needed to maintain tight, leak-free connections between hoses and accessories on Kärcher pressure washers. Over time, rubber O‑rings can wear, crack, or swell from regular use and pressure — replacing them keeps joints sealed and your washer delivering optimum pressure.

Key Features:

• Genuine Kärcher Spare Part – manufactured to original specifications for perfect compatibility and performance.
• Prevents Water Leaks – replaces worn or damaged seals to stop water loss and maintain cleaning efficiency.
• Easy to Fit – designed for straightforward replacement of O‑rings and safety plugs on rifles, lances, guns, and accessories.
• Durable Rubber Material – quality seals built to withstand high-pressure conditions and frequent use.

Compatibility:

Compatible with a wide range of Kärcher home pressure washers, including K2, K3, K4, K5, and K7 series (check your user manual for exact fit).

Why You Need It?

Routine replacement of worn O‑rings ensures your pressure washer operates efficiently, saves water, and prevents damage to internal components. Ideal for home or professional use, this kit keeps your Kärcher performing at its best.

CROWLEY CHEMICALS

Crowley Chemicals have been servicing the cleaning needs of a wide range of industries since 1978. Having built our reputation on expertise and experience, our team provides customers with both market leading products and professional service. We work closely with some of the world's leading brands, including; Kärcher, AutoSmart, Vikan, Flex, and 3M, to ensure the best results every time.

You can shop with us online via www.crowleycleaning.ie/, visit our showroom in South Link Park Ballycurreen, Co.Cork, or else request a visit from one of our trained representatives in our mobile showroom. 

Don't forget we offer Free Delivery on all orders over €100. If you need any further assistance or have any questions on any of our products ranges, require professional cleaning advice, home & garden equipment, brushes, bodyshop, or machine hire & services, please don't hesitate to contact us email - kevin@crowley-group.com