---
product_id: 550214085
title: "6AN Male to 3/8\" & 5/16\" Quick-Disconnect Female EFI Fuel Rail Fitting Aluminum"
brand: "evil energy"
price: "$39.86"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/550214085-6an-male-to-3-8-and-5-16-quick-disconnect
store_origin: US
region: United States of America
---

# 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:** $39.86
**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?** $39.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/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

- • **Extreme Condition Ready:** Operates flawlessly from freezing -40°F to scorching 250°F
- • **Multi-Application Power:** Perfect for EFI fuel rails, LS swaps, transmission coolers, and more
- • **Precision Leak-Proof Seal:** 37° flare angle ensures zero fuel leakage under pressure
- • **Versatile Quick-Disconnect:** Effortless installation with 6AN male to 3/8" & 5/16" female fittings
- • **Premium Aluminum Alloy Build:** Durable 6061-T6 aluminum for lightweight strength and corrosion resistance

## Overview

The EVIL ENERGY 6AN Male to 3/8" & 5/16" Quick-Disconnect EFI Fuel Rail Fitting is a high-performance aluminum alloy component engineered for professional-grade fuel system setups. Featuring a 37° flare seal to prevent leaks, it withstands pressures up to 1500psi and extreme temperatures from -40°F to 250°F. Ideal for engine fuel rails, LS swaps, and transmission coolers, this fitting offers quick, secure connections that keep your vehicle running at peak efficiency.

## 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 |
|---------------|-------|
| Manufacturer | EVIL ENERGY |
| Part number | 616582 |
| Item Weight | 41 g |
| Package Dimensions | 12.3 x 10.6 x 2.3 cm; 41 g |
| Item model number | 616582 |
| Size | 6AN to 3/8 & 5/16 |
| Color | Black |
| Style | Nut Lock - 2PCS |
| Material | Aluminum |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

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

## 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.

---

## 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.us/products/550214085-6an-male-to-3-8-and-5-16-quick-disconnect](https://www.desertcart.us/products/550214085-6an-male-to-3-8-and-5-16-quick-disconnect)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-26*