--- product_id: 54512495 title: "Karcher O-Ring Seal Set" brand: "kärcher" price: "€ 25.15" currency: EUR in_stock: true reviews_count: 13 category: "Kärcher" url: https://www.desertcart.pt/products/54512495-karcher-o-ring-seal-set store_origin: PT region: Portugal --- # Leak-proof sealing 20 precision O-rings Made in Germany quality Karcher O-Ring Seal Set **Brand:** kärcher **Price:** € 25.15 **Availability:** ✅ In Stock ## Summary > 💧 Seal the deal with precision and never miss a clean moment! ## Quick Answers - **What is this?** Karcher O-Ring Seal Set by kärcher - **How much does it cost?** € 25.15 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/54512495-karcher-o-ring-seal-set) ## Best For - kärcher enthusiasts ## Why This Product - Trusted kärcher brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Leak-Free Performance:** Secure, tight seals that prevent leaks and maintain optimal water pressure every time. - • **Quick & Easy Maintenance:** Restore your pressure washer’s efficiency fast—no more downtime or messy leaks. - • **Premium German Engineering:** Crafted in Germany to ensure durability and long-lasting performance under pressure. - • **Complete 20-Piece O-Ring Kit:** All essential seals for your Kärcher pressure washer accessories in one pack. - • **Precision Fit for K2-K5 Models:** Guaranteed compatibility with popular Kärcher electric models for hassle-free replacements. ## Overview The Kärcher 2.640-729.0 O-Ring Set includes 20 high-quality rubber seals designed specifically for Kärcher pressure washer accessories (K2-K5 models). Made in Germany, these O-rings ensure leak-proof, durable connections that maintain optimal performance and extend the life of your equipment. ## Description Comprehensive o-ring kit with 20 replacement seals for Karcher pressure washer accessories, ensuring secure, leak-free connections for reliable performance. Review: Good quality works well - Good quality good range of sizes Review: Done the job well - Came quickly and fit very well.. no more leeks …yippie ## Features - O-rings spare part kit for Kärcher pressure washer accessories - Contains o-rings for Kärcher trigger guns, spray lances, high pressure hoses and optional accessories such as brushes - Contains 20 pieces - Made in Germany - For Karcher electric models K2/K3/K4/K5 and earlier. Does not fit K1700-K2000 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BFJ65Y | | Assembled Diameter | 17 Millimetres | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 3,347 in Garden ( See Top 100 in Garden ) 52 in Pressure Washers | | Colour | Black | | Customer Reviews | 4.5 4.5 out of 5 stars (2,818) | | Cutting Diameter | 17 Millimetres | | Date First Available | 26 Jun. 2007 | | Head Style | Round | | Included Components | 1 x O-Ring Set | | Item Package Quantity | 1 | | Item Weight | 7 g | | Item model number | 2.640-729.0 | | Manufacturer | Kärcher | | Material | Rubber | | Measurement System | Metric | | Number of Pieces | 1 | | Part Number | 2.640-729.0 | | Power Source | Corded Electric | | Temperature Range | -4E+1 Degrees Celsius | ## Product Details - **Brand:** Kärcher - **Colour:** Black - **Item diameter:** 17 Millimetres - **Material:** Rubber - **Nominal inside diameter:** 17 Millimetres ## Images ![Karcher O-Ring Seal Set - Image 1](https://m.media-amazon.com/images/I/51J3cetO+AL.jpg) ## Questions & Answers **Q: Seems like this should fit the k1900 washer. karcher.com recommends part 2.640-729.0 for the k1900, which this is. am i wrong?** A: It fits k1900 **Q: looking for o ring 9.080.4940 for karcher k3 .450 pressure washer ?** A: This will fit. **Q: Would this fit the K2.360?** A: Yes, the yellow plugs, and o-rings will fit the K2 **Q: Will it fit k 3.98?** A: I believe they are universal for Karcher. I did not choose my unit size first. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good quality works well *by K***. on 12 January 2026* Good quality good range of sizes ### ⭐⭐⭐⭐⭐ Done the job well *by F***N on 19 February 2026* Came quickly and fit very well.. no more leeks …yippie ### ⭐⭐⭐⭐ Good Quality, Fit Perfectly *by B***P on 17 April 2017* This review is for the Karcher 2640-729 O-Ring Set. A tad expensive for a few 'O' rings and a couple of jet nozzle thingies, but I couldn't be bothered with the hassle of waiting for the seals to go, then trying to go hunting about for the correct ones in town, then repeating all this when another one went! As it turned out on the day these arrived, I dragged the pressure washer out to attack the patio slabs and on checking the main seal connecting the wand hose to the washer, it has completely split! So timing was excellent and I am glad I ordered these. I suppose these should do you for a good few years of use. Knowing you've got some spares in case one splits, especially when you do have the welly to get the pressure washer out of storage and attack those jobs is handy. So 4 stars for delivery speed and quality, 1 mark deducted for the cost ( as there is extra postage on top if order is under £20). ## Frequently Bought Together - Kärcher - O-Ring Replacement Set for Kärcher Electric Pressure Washers - 20-Piece Kit - Kärcher Garden Hose Adapter Kit for Electric and Gas Pressure Washers, Quick Connect Fitting, Water Flow Regulating - Karcher Nozzle Replacement O-Rings 3 Pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/54512495-karcher-o-ring-seal-set](https://www.desertcart.pt/products/54512495-karcher-o-ring-seal-set) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-26*