---
product_id: 143074705
title: "X AUTOHAUX 5pcs 4mm Brass Barb Hose Fitting Straight Union for Automotive"
brand: "x autohaux"
price: "¥2339"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/143074705-x-autohaux-5pcs-4mm-brass-barb-hose-fitting-straight-union
store_origin: JP
region: Japan
---

# Leak-proof barbed seal High-temp brass durability 4mm precision fit X AUTOHAUX 5pcs 4mm Brass Barb Hose Fitting Straight Union for Automotive

**Brand:** x autohaux
**Price:** ¥2339
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your flow game with brass precision!

## Quick Answers

- **What is this?** X AUTOHAUX 5pcs 4mm Brass Barb Hose Fitting Straight Union for Automotive by x autohaux
- **How much does it cost?** ¥2339 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/143074705-x-autohaux-5pcs-4mm-brass-barb-hose-fitting-straight-union)

## Best For

- x autohaux enthusiasts

## Why This Product

- Trusted x autohaux brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision 4mm Fit:** Engineered for exact hose compatibility, ensuring seamless integration every time.
- • **Premium Brass Build:** Corrosion-resistant and heat-tolerant for long-lasting, reliable performance under pressure.
- • **Secure Barbed Design:** Creates an airtight, leak-proof seal with flexible or semi-rigid hoses—no slip, no mess.
- • **Lightweight & Compact:** At just 20g and slim dimensions, it fits discreetly without adding bulk to your system.
- • **Versatile Application:** Perfect for air, water, and oil systems—adapt your setup with confidence and ease.

## Overview

The X AUTOHAUX 4mm Brass Barb Hose Fitting is a corrosion-resistant, heat-tolerant connector designed for secure, leak-proof joins in air, water, and oil hose systems. Its barbed design ensures a tight seal with flexible hoses, making it an essential upgrade for professionals demanding durability and precision.

## Description

X AUTOHAUX 4mm Brass Barb Hose Fitting Straight Joiner for Air Water Oil 5pcs

## Features

- Made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
- Relative softness of brass threading when compared to other metals allows for a tight seal
- Barbed fitting creates a tight seal on flexible and semi-rigid hose when used with a hose clamp or crimp sleeve or ferrule
- Hose fittings can connect, control, change the direction and terminate the flow in piping and hose systems
- Note:Please confirm the shape and size before payment

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | X AUTOHAUX |
| Brand | X AUTOHAUX |
| Product Dimensions | 14 x 10.01 x 0.99 cm; 20 g |
| Item model number | a19041800ux0558 |
| Exterior | Brass |
| Manufacturer part number | a19041800ux0558 |
| Position | Outer |
| Item Weight | 20 g |

## Product Details

- **Size:** 4mm
- **Material:** Brass, Plastic
- **Brand:** X AUTOHAUX
- **Colour:** Gold Tone
- **Item dimensions L x W x H:** 14 x 10 x 1 centimetres
- **Connector type:** Union
- **Thread size:** 4mm
- **Exterior finish:** Brass
- **Thread type:** metric
- **Item weight:** 20 Grams

## Images

![X AUTOHAUX 5pcs 4mm Brass Barb Hose Fitting Straight Union for Automotive - Image 1](https://m.media-amazon.com/images/I/71XGtXGoF1L.jpg)
![X AUTOHAUX 5pcs 4mm Brass Barb Hose Fitting Straight Union for Automotive - Image 2](https://m.media-amazon.com/images/I/81VbPesFbFL.jpg)
![X AUTOHAUX 5pcs 4mm Brass Barb Hose Fitting Straight Union for Automotive - Image 3](https://m.media-amazon.com/images/I/61dC3RbZgIL.jpg)
![X AUTOHAUX 5pcs 4mm Brass Barb Hose Fitting Straight Union for Automotive - Image 4](https://m.media-amazon.com/images/I/51gy0lDS2SL.jpg)
![X AUTOHAUX 5pcs 4mm Brass Barb Hose Fitting Straight Union for Automotive - Image 5](https://m.media-amazon.com/images/I/612MACZXs3L.jpg)

## Available Options

This product comes in different **Size Name** options.

---

## 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.jp/products/143074705-x-autohaux-5pcs-4mm-brass-barb-hose-fitting-straight-union](https://www.desertcart.jp/products/143074705-x-autohaux-5pcs-4mm-brass-barb-hose-fitting-straight-union)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-11-12*