EVIL ENERGY 6AN male to 5/16 inch quick-disconnect fitting close-up for EFI systems
EVIL ENERGY aluminum 6061-T6 body shows durable engine bay construction
EVIL ENERGY 37-degree seal provides leak-free EFI connection
EVIL ENERGY LS swap-ready quick-disconnect design for easy installation
EVIL ENERGY 6AN male to 5/16 inch quick-disconnect fitting close-up for EFI systems
EVIL ENERGY aluminum 6061-T6 body shows durable engine bay construction
EVIL ENERGY 37-degree seal provides leak-free EFI connection
EVIL ENERGY LS swap-ready quick-disconnect design for easy installation

EVIL ENERGY 6AN to 5/16 Quick-Disconnect EFI Fitting – 2PCS, Aluminum 6061-T6

EVIL ENERGY 6AN to 5/16 Quick-Disconnect EFI Fitting Engineered to deliver a reliable connection for mid- to...
Vendor: EVIL ENERGY
Availability: In stock
£30.73
£30.73
Please hurry! Only 5 left in stock
Subtotal: £30.73
10 customers are viewing this product

Free UK Delivery on All Orders

No Minimum Spend Fast & Reliable Delivery Ships Across the UK

Free Returns

30-Day Free Returns
EVIL ENERGY 6AN male to 5/16 inch quick-disconnect fitting close-up for EFI systems

EVIL ENERGY 6AN to 5/16 Quick-Disconnect EFI Fitting – 2PCS, Aluminum 6061-T6

£30.73
EVIL ENERGY 6AN male to 5/16 inch quick-disconnect fitting close-up for EFI systems
EVIL ENERGY aluminum 6061-T6 body shows durable engine bay construction
EVIL ENERGY 37-degree seal provides leak-free EFI connection
EVIL ENERGY LS swap-ready quick-disconnect design for easy installation

EVIL ENERGY 6AN to 5/16 Quick-Disconnect EFI Fitting – 2PCS, Aluminum 6061-T6

£30.73
Description
Description
x

EVIL ENERGY 6AN to 5/16 Quick-Disconnect EFI Fitting

Engineered to deliver a reliable connection for mid- to high-pressure EFI systems, this 2-piece set from EVIL ENERGY combines a lightweight aluminum body with a precision flare seal. Built for hobbyists and professionals alike, it stands up to common under-hood conditions while remaining straightforward to install.

Key specifications at a glance

  • Size and thread: 6AN thread with 9/16-18UNF, plus a 5/16 inch ID screw for precise fitment.
  • Sealing design: 37-degree flare seals to minimize leakage risks during pressure changes.
  • Performance range: working pressure up to 1500 psi; temperature range from -40°F to 250°F.
  • Material: aluminum alloy 6061-T6 for a strong, corrosion-resistant, lightweight profile.
  • Applications: ideal for engine fuel rails, LS swaps, transmission coolers, return lines, and fuel sensors.

Why choose this fitting for your build

In real-world use, a high-pressure rating, broad temperature tolerance, and a proven 37-degree flare translate to consistent performance. The aluminum body stays light in the engine bay and resists heat-induced wear, while the seal reduces the chance of drips during maintenance.

  • Durable under demanding EFI conditions
  • Clear, reliable seal minimizes leaks
  • Compatibility with standard 6AN lines and common EFI configurations

Installation notes and compatibility

Designed to fit standard 6AN lines with a 9/16-18UNF thread and a 5/16 inch ID. This 2-piece set is easy to install on EFI components, including LS swaps, fuel rails, and related lines that use quick-disconnect connections.

As with any upgrade, verify thread compatibility and service limits for your specific vehicle configuration.

FAQ

Q: What is the compatibility of the EVIL ENERGY 6AN to 5/16 inch Quick-Disconnect EFI fitting?

A: It uses a 6AN thread with 9/16-18UNF and a 5/16 inch ID, suitable for EFI fuel rails, LS swaps, and related lines.

Q: What benefits does the 37-degree flare seal offer?

A: It provides a tight, leak-resistant seal while handling up to 1500 psi and temperatures from -40 °F to 250 °F.

Shipping & Return
Shipping & Return
x

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Complete Your Setup

Example product title
£30.73
£30.73
Example product title
£30.73
£30.73
Example product title
£30.73
£30.73
Example product title
£30.73
£30.73
Example product title
£30.73
£30.73
Example product title
£30.73
£30.73
Example product title
£30.73
£30.73
Example product title
£30.73
£30.73
Example product title
£30.73
£30.73
Example product title
£30.73
£30.73

Recently Viewed Products