# Quick-lock coupling Einhell 4139208

**URL:** https://aio.lv/en/product--einhell-4139208--3096197
**Data updated:** 2026-01-06 11:08 (EET)
**Category:** Air Compressors
**Manufacturer:** EINHELL
**Manufacturer code:** 4139208
**EAN:** 4006825560831
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.99 €
**Prices and availability valid until:** 2026-07-06 23:59
**Price without VAT (21%):** 15.69 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--einhell-4139208--3096197

## 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 4139208 quick-lock coupling is designed for seamless connection to Einhell air compressors. It features a 3/8" connecting thread, ensuring compatibility with various tools. This accessory allows for quick and easy tool changes, enhancing efficiency during tasks. Sold as a single piece, it is a reliable addition to your air compressor setup.

## Long description

The Einhell 4139208 Quick-lock coupling is a single-piece accessory designed for fast, secure connections to Einhell air compressors. With a 3/8" connecting thread, it ensures compatibility with a range of pneumatic tools and fittings, enabling rapid tool changes and reliable airflow transfer during workshop and jobsite tasks.
Advantages
This quick-lock coupling provides a compact, durable connection made to fit Einhell compressors, combining straightforward installation with consistent sealing. It is offered at an accessible price point while maintaining brand credibility and service support, making it suitable for both mass-market and traditional users seeking a good return on investment.
Suitable for
 Connecting pneumatic tools to Einhell air compressors
 Workshop and garage maintenance tasks
 Construction and DIY projects requiring quick tool changes
Key specifications
 Brand: EINHELL
 Manufacturer part number (MPN): 4139208
 EAN: 4006825560831
 Connecting thread: 3/8"
 Sold as: single piece
How to use
Thread the coupling onto the compressor or hose fitting with the matching 3/8" thread until tight, ensuring threads are clean and undamaged. Attach the mating pneumatic tool or hose to the quick-lock end and engage the locking mechanism until it clicks or feels secure. Before use, verify the connection is sealed by pressurizing the system and checking for leaks.
Usage recommendations
Use appropriate thread sealant or tape if required by the compressor or hose manufacturer, avoid overtightening, and inspect the coupling regularly for wear or damage. Replace the coupling if any leakage or mechanical wear is observed.

## Specifications

| Feature | Value |
|---|---|
| Brand compatibility | Einhell |
| Connecting thread | 3/8 |
| Product type | Quick-lock coupling |
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Quick-lock coupling Einhell 4139208 cost, and is it available for purchase?

The price is 18.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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

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