---
product_id: 550214085
title: "6AN Male to 3/8\" & 5/16\" Quick-Disconnect Female EFI Fuel Rail Fitting Aluminum"
brand: "evil energy"
price: "¥5751"
currency: JPY
in_stock: true
category: "Evil Energy"
url: https://www.desertcart.jp/products/550214085-6an-male-to-3-8-and-5-16-quick-disconnect
store_origin: JP
region: Japan
---

# 1500psi max working pressure 6AN thread size 9/16-18UNF -40°F to 250°F temperature range 6AN Male to 3/8" & 5/16" Quick-Disconnect Female EFI Fuel Rail Fitting Aluminum

**Brand:** evil energy
**Price:** ¥5751
**Availability:** ✅ In Stock

## Summary

> ⚡ Fuel your ride with precision and power — don’t get left behind!

## Quick Answers

- **What is this?** 6AN Male to 3/8" & 5/16" Quick-Disconnect Female EFI Fuel Rail Fitting Aluminum by evil energy
- **How much does it cost?** ¥5751 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/550214085-6an-male-to-3-8-and-5-16-quick-disconnect)

## 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

- • **Trusted by Tuners:** Top-rated with 4.8 stars from 597 enthusiasts—join the elite
- • **Wide Compatibility:** Perfect for EFI fuel rails, LS swaps, transmission coolers, and more
- • **High-Pressure Ready:** Engineered to withstand up to 1500psi for peak performance
- • **Premium Aluminum Alloy:** Crafted from durable 6061-T6 aluminum for lightweight strength
- • **Precision Quick-Disconnect:** Effortless installation with secure 37° flare seal to prevent leaks

## Overview

The EVIL ENERGY 6AN Male to 3/8" & 5/16" Quick-Disconnect EFI Fuel Rail Fitting is a high-performance aluminum alloy component designed for seamless, leak-proof fuel system connections. Rated for 1500psi and a wide temperature range, it’s ideal for professional tuners and enthusiasts upgrading their engine fuel rails, LS swaps, and transmission coolers.

## Description

Evil energy is our brand, we're a direct and professional manufaturer in China, one of greatest manufacturer and exporter in Tuning parts include intake system, exhaust system, engine system, cooling system, interior & exterior parts. Accept customized order with minimum quantity. These fuel fittings are precisely manufactured for a quick and easy installation. 6AN Male to 3/8" factory fuel line The fitting made of T6061 Aluminum, high strength and good durability.

## Features

- [Size] The thread size of 6an is 9/16-18UNF. The ID of the screw is 3/8 inch and 5/16 inch.
- [Seal] The 6an flare efi fitting is sealed at 37 degree angle to avoid leakage.
- [Parameter] Working pressure: 1500psi; Temperature range: -40°F-250°F.
- [Material] Made of aluminum alloy 6061-T6. Spring lock is made of plastic.
- [Application] Widely used in engine fuel rail, ls swap, transmission cooler, return line, fuel sensor, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C4SHM6QL |
| ASIN  | B0C4SHM6QL |
| Best Sellers Rank | #84,259 in Automotive ( See Top 100 in Automotive ) #58 in Car Fuel Fitting Kits |
| Brand Name | EVIL ENERGY |
| Color | Black |
| Connector Type | Flare |
| Customer Reviews | 4.8 4.8 out of 5 stars (597) |
| Customer reviews | 4.8 4.8 out of 5 stars (597) |
| Date First Available  | 2 August 2023 |
| Exterior Finish | Aluminum |
| Item Weight | 0.04 Kilograms |
| Item model number  | 616582 |
| Manufacturer | EVIL ENERGY |
| Manufacturer  | EVIL ENERGY |
| Manufacturer Part Number | 616582 |
| Material Type | Aluminum |
| Model Number | 616582 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Package Dimensions  | 12.3 x 10.6 x 2.3 cm; 41 g |
| Set Name | 2-Piece Set |
| Size | 6AN to 3/8 & 5/16 |
| Thread Size | 9/16-18UNF |
| Thread Type | UNF |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** EVIL ENERGY
- **Colour:** Black
- **Connector type:** Flare
- **Material:** Aluminum
- **Size:** 6AN to 3/8 & 5/16

## Images

![6AN Male to 3/8" & 5/16" Quick-Disconnect Female EFI Fuel Rail Fitting Aluminum - Image 1](https://m.media-amazon.com/images/I/61U1Bu7EyuL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.jp/products/550214085-6an-male-to-3-8-and-5-16-quick-disconnect](https://www.desertcart.jp/products/550214085-6an-male-to-3-8-and-5-16-quick-disconnect)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-04*