---
product_id: 503812659
title: "6AN Male to 3/8\" Hardline Compression Fitting Adapter Aluminum Black 2PCS"
brand: "evil energy"
price: "฿1696"
currency: THB
in_stock: true
reviews_count: 13
category: "Evil Energy"
url: https://www.desertcart.co.th/products/503812659-6an-male-to-3-8-hardline-compression-fitting-adapter-aluminum
store_origin: TH
region: Thailand
---

# 37° flare angle for leak-proof seal 6AN male flare, 9/16 UNF thread Precision aluminum alloy & brass ferrule 6AN Male to 3/8" Hardline Compression Fitting Adapter Aluminum Black 2PCS

**Brand:** evil energy
**Price:** ฿1696
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your fuel line game with precision and style!

## Quick Answers

- **What is this?** 6AN Male to 3/8" Hardline Compression Fitting Adapter Aluminum Black 2PCS by evil energy
- **How much does it cost?** ฿1696 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/503812659-6an-male-to-3-8-hardline-compression-fitting-adapter-aluminum)

## Best For

- evil energy enthusiasts

## Why This Product

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

## Key Features

- • **Leak-Proof Confidence:** 37° flare angle ensures a secure, no-drip seal under pressure
- • **Plug & Play Compatibility:** Designed specifically for stainless steel or aluminum hardlines—measure before you buy!
- • **Seamless Fuel System Upgrade:** Perfect 6AN to 3/8" hardline fit for high-performance fuel delivery
- • **Trusted by Pros & Enthusiasts:** Top-rated with 4.8 stars and proven reliability in classic GM truck fuel lines
- • **Premium Materials, Maximum Durability:** Crafted from lightweight aluminum alloy with brass ferrule for corrosion resistance

## Overview

The EVIL ENERGY 6AN Male to 3/8" Hardline Compression Fitting Adapter is a high-quality, aluminum alloy and brass component designed for secure, leak-proof connections in fuel systems. Featuring a 37° flare angle and 9/16 UNF thread size, it fits 3/8" OD stainless steel or aluminum hardlines, making it ideal for engine modifications and fuel delivery upgrades. This 2-piece set is trusted by automotive professionals and enthusiasts alike for its durability and perfect fit.

## Description

Buy EVIL ENERGY 6AN Male to 3/8" Hardline Compression Fitting Adapter Aluminum Black 2PCS: Fittings - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Good quality item - Good quality. Did not leak. Good price for the money. Works perfect for the steal fuel line on 90's GM trucks
Review: Good part - Good fit. Worked like they should.

## Features

- Size: 6AN male flare to 3/8 inch, the thread size of the 6 AN is 9/16 UNF. Fits to 3/8" OD hardline, please measure before purchase.
- Material: Made of aluminium alloy fitting and brass ferrule.
- Sealing: The AN thread of the flare is sealed by a 37 degree angle.
- Application:This 3/8 compression to 6an fitting is widely used in fuel delivery, fuel system, engine modification, etc.
- Note:Only applicable to stainless steel or aluminum hardline.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BN5SVK35 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #2,658 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Replacement Fuel System Fittings |
| Brand | EVIL ENERGY |
| Color | 2PCS |
| Connector Type | Flare |
| Customer Reviews | 4.8 4.8 out of 5 stars (639) |
| Date First Available | November 23, 2022 |
| Exterior Finish | Aluminum, Brass |
| Item Package Quantity | 1 |
| Item Weight | 1.44 ounces |
| Manufacturer | Speedwow Tuning |
| Material | Aluminum |
| Number of Pieces | 2 |
| Package Dimensions | 4.8 x 4.17 x 1.1 inches |
| Set Name | 2-Piece Set (6AN to 3/8) |
| Size | 6AN to 3/8 |
| Style | 2PCS |
| Thread Size | 0.375 inch |
| Thread Type | UNF |

## Product Details

- **Brand:** EVIL ENERGY
- **Color:** 2PCS
- **Connector Type:** Flare
- **Exterior Finish:** Aluminum, Brass
- **Item Weight:** 0.04 Kilograms
- **Material:** Aluminum
- **Number of Pieces:** 2
- **Size:** 6AN to 3/8
- **Thread Size:** 0.375 inch
- **Thread Type:** UNF

## Images

![6AN Male to 3/8" Hardline Compression Fitting Adapter Aluminum Black 2PCS - Image 1](https://m.media-amazon.com/images/I/61cCwN15lWL.jpg)
![6AN Male to 3/8" Hardline Compression Fitting Adapter Aluminum Black 2PCS - Image 2](https://m.media-amazon.com/images/I/61LtSYa+dvL.jpg)
![6AN Male to 3/8" Hardline Compression Fitting Adapter Aluminum Black 2PCS - Image 3](https://m.media-amazon.com/images/I/71Eagwe-++L.jpg)
![6AN Male to 3/8" Hardline Compression Fitting Adapter Aluminum Black 2PCS - Image 4](https://m.media-amazon.com/images/I/71Nb9RQDkNL.jpg)
![6AN Male to 3/8" Hardline Compression Fitting Adapter Aluminum Black 2PCS - Image 5](https://m.media-amazon.com/images/I/81rl5ES+CqL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality item
*by D***S on October 16, 2025*

Good quality. Did not leak. Good price for the money. Works perfect for the steal fuel line on 90's GM trucks

### ⭐⭐⭐⭐⭐ Good part
*by S***N on November 12, 2025*

Good fit. Worked like they should.

### ⭐⭐⭐⭐⭐ Perfect
*by J***N on October 16, 2025*

I am very pleased. Worked perfectly and don’t leak a drop. Easy to do. My first time ever doing these and I was very satisfied. I actually used this to make a repair for a hardline that got damaged and had to make a splice. Used compression fittings and it works flawlessly.

## Frequently Bought Together

- EVIL ENERGY 6AN Male to 3/8" Hardline Compression Fitting Adapter Aluminum Black 2PCS
- EVIL ENERGY 6AN Fuel Line Kit, 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black
- EVIL ENERGY 6AN Male to 3/8" & 5/16" Quick-Disconnect Female EFI Fuel Rail Fitting Aluminum

---

## 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.co.th/products/503812659-6an-male-to-3-8-hardline-compression-fitting-adapter-aluminum](https://www.desertcart.co.th/products/503812659-6an-male-to-3-8-hardline-compression-fitting-adapter-aluminum)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-25*