# Quick-lock coupling Einhell 4139209

**URL:** https://aio.lv/en/product--einhell-4139209--3096198
**Data updated:** 2026-01-06 11:08 (EET)
**Category:** Air Compressors
**Manufacturer:** EINHELL
**Manufacturer code:** 4139209
**EAN:** 4006825596939
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-06 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--einhell-4139209--3096198

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The Einhell 4139209 quick-lock coupling is designed for use with Einhell air compressors. It features a 1/2" connecting thread and comes in a pack of 1. This coupling allows for quick and easy connection and disconnection of air tools, ensuring efficient operation and reducing downtime. Its robust construction ensures durability and reliability during use.

## Long description

The Einhell 4139209 Quick-lock coupling is a durable accessory designed for use with Einhell air compressors. It has a 1/2" connecting thread and is supplied as a single unit, enabling fast connection and disconnection of air tools to maintain workflow efficiency and reduce downtime. The coupling is manufactured for reliable, everyday use and suits applications where quick hose or tool changes are required.
Advantages
The quick-lock mechanism provides rapid and secure connections without tools, while the robust construction offers resistance to wear and frequent use. Compatibility with Einhell compressors and a standard 1/2" thread simplifies installation. The single-piece packaging makes it easy to replace or keep as a spare for maintenance tasks.
Suitable for
Connecting pneumatic tools to Einhell air compressors
Workshops and DIY tasks requiring frequent tool changes
Routine maintenance where a reliable coupling is needed
Key specifications
Brand: EINHELL
Manufacturer part number (MPN): 4139209
EAN: 4006825596939
Connecting thread: 1/2"
Pack quantity: 1
How to use
Ensure the compressor is switched off and depressurised before fitting. Screw the coupling into the appropriate 1/2" port on the compressor or hose, tightening securely by hand or with a suitable wrench if needed. To connect an air tool, push the tool's matching fitting into the coupling until it locks; to disconnect, release the locking sleeve according to the coupling's design and withdraw the fitting. Check for leaks after installation and before use.
Usage recommendations
Use with compatible Einhell air compressors and fittings; inspect the coupling periodically for signs of wear or damage and replace if leakage or mechanical deterioration occurs. Avoid using the coupling on systems exceeding the compressor or tool manufacturer's recommended pressure limits.

## Specifications

| Feature | Value |
|---|---|
| Brand compatibility | Einhell |
| Connecting thread | 1/2 |
| Product type | Quick-lock coupling |
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Quick-lock coupling Einhell 4139209 cost, and is it available for purchase?

The price is 15.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 31 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 08.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All EINHELL products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized EINHELL service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/3096198/64202963_large.webp