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30-Piece O-Ring Seal Set for Karcher K2-K7
$1.89$3.78Save 50%
In stock at aliexpress.com
A 30-piece NBR O-ring assortment made as spare seals for Karcher K2 to K7 pressure washers, covering gasket, washer, lance, hose and nozzle connection points. It costs $1.89, with over 2,500 orders and 98% positive feedback on AliExpress.
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Price from AliExpress at our last check (refreshed weekly). The final price, shipping and any import charges show at AliExpress checkout. We may earn a commission if you buy.
Highlights
- 30 NBR rubber O-rings
- Listed for Karcher K2, K3, K4, K5, K6 and K7
- Covers lance, hose, nozzle and brush connections
- Part number 2.640-729.0 is quoted in the title
Best for
Owners of a Karcher K-series washer whose gun or lance is leaking at a connector.
Things to consider
- It is an aftermarket set, not a Karcher-branded part
- Match the O-ring size to the connector you are fixing, as the set holds different sizes
- A small bag of O-rings is easy to mail, and a wrong-size shipment can be reported through AliExpress within the dispute window
Key specs
| Price | $1.89 |
|---|---|
| Quantity | 30 pieces |
| Material | NBR |
| Fits | Karcher K2 to K7 (per title) |
Our take
A cheap, practical repair kit for K-series washers. Match sizes before assuming a fit.
30-Piece O-Ring Seal Set for Karcher K2-K7 at a glance
| Brand | AliExpress |
|---|---|
| Price | $1.89 (was $3.78) |
| Type | Garden Tools |
| Availability | In stock at aliexpress.com |
| Returns | Eligible items can be returned within 90 days of payment, with the first return on each… |
Price check
At $1.89, the 30-Piece O-Ring Seal Set is one of AliExpress's more affordable items, whose 51,717 listed products run $1 to $1,229.
It's currently 50% below its listed price of $3.78. Sale prices can end without notice, so check the live price before you order.
Frequently asked questions
Will it fit my Karcher model?
The title lists K2 through K7, but connector sizes differ slightly between generations. Compare your old O-ring's diameter with the photos before you buy.
Is this an official Karcher part?
No. It is a compatible third-party set that references the Karcher part number. Official parts cost more but are guaranteed to match.
How do I replace the O-ring?
Remove the old ring with a small pick, wipe the groove clean, and lightly grease the new one with silicone grease. Don't use petroleum grease on rubber seals.
How long will delivery take to the US?
Seals are tiny and light, so one to three weeks is typical for US delivery, with Choice or Ship from United States stock faster. Your tracking link will show progress, and Buyer Protection can cover a missing or wrong order. Look for import charges before you pay.
Is the 30-Piece O-Ring Seal Set on sale?
Yes. AliExpress lists it at $1.89, down from $3.78 (50% off). Sale prices change, so confirm the live price on aliexpress.com.
Is there a discount on the 30-Piece O-Ring Seal Set?
AliExpress publishes these ways to save: Coins in the app. AliExpress sets the terms, which can change; our AliExpress coupons page has the details.
What is AliExpress's return policy?
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
How long does AliExpress take to ship?
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Does the 30-Piece O-Ring Seal Set come with a warranty?
AliExpress's published warranty terms: AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Where can I buy the 30-Piece O-Ring Seal Set?
The 30-Piece O-Ring Seal Set is sold directly by AliExpress on aliexpress.com. The Shop now button on this page goes straight to the product there.
Is the 30-Piece O-Ring Seal Set in stock?
Yes. AliExpress lists it as in stock on aliexpress.com as of our latest check. Stock and prices refresh throughout the day.
Is AliExpress a legit store?
AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay. Our full AliExpress review covers shipping, returns and what to check before ordering.
