# Air compressor accessory Proline 66319 — replacement/maintenance part

**URL:** https://aio.lv/en/product--proline-5663191--10786466
**Data updated:** 2026-03-12 10:13 (EET)
**Category:** Air Compressors
**Manufacturer:** Proline
**Manufacturer code:** 5663191
**EAN:** 5903755663191
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 2.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-5663191--10786466

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

Accessory for air compressors by Proline, model 66319 (MPN 5663191, EAN 5903755663191). Designed as a replacement or maintenance part to support compressor operation and prolong service life. Compatible details and installation requirements depend on the compressor model. Suited for routine repairs, part replacement during servicing, and maintaining compressor performance in workshops or garages.

## Long description

Proline quick connector is designed for connecting 12 mm diameter hoses in pneumatic systems, providing a fast and reliable connection for air supply components. Manufactured from quality materials, it ensures durability and long service life.
Advantages
The Proline quick connector offers a secure fit for 12 mm hoses, simple and fast coupling and uncoupling, and resistance to wear due to durable construction. Its compact design facilitates installation in confined spaces and reduces downtime during maintenance.
Suitable for
 Workshop air lines and compressed air systems
 Pneumatic tools and air-operated equipment
 Automotive servicing and tyre inflation stations
 Industrial and hobby pneumatic projects
Key specifications
 Compatible hose diameter: 12 mm
 Brand: Proline
 Manufacturer part number (MPN): 5663191
 EAN: 5903755663191
How to use
Ensure the hose end is cut squarely and free of debris, then push the 12 mm hose firmly into the connector until it seats. For disconnection, depress the release mechanism (if present) or pull back the sleeve and remove the hose. Check the connection for leaks after installation and tighten or reseat if necessary.
Usage recommendations
Use with clean, dry compressed air within the pressure limits of your pneumatic system. Regularly inspect the connector and hose for wear or damage and replace components if sealing performance degrades. Follow Proline and system manufacturer guidelines for safe operation.

## Specifications

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### How much does the Air compressor accessory Proline 66319 cost, and is it available for purchase?

The price is 3.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 273 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 22.06.2026 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, Bank cards on-line, Apple Pay, Google Pay. 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 Proline 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 Proline 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/10786466/64449308_large.webp