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EVIL ENERGY 8AN Male to 5/16" SAE Quick-Disconnect Female Push-On EFI Fuel Rail Fitting

  • Based on 2,000 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jan 21
Order within 6 hours and 21 minutes
Available payment plans shown during checkout

Size: 8AN to 5/16


Color: Blackblue-straight


Features

  • [Size] The thread size of 8an is 3/4-16 UNF. The ID of spring lock is 5/16 inch.
  • [Seal] The 8an flare efi fitting is sealed at 37 degree angle to avoid leakage.
  • [Parameter] Working pressure: 1500psi, Temperature range: -40F to 176F.
  • [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.

Size: 8AN to 5/16


Material: Aluminum, Plastic


Brand: EVIL ENERGY


Color: Blackblue-straight


Connector Type: Flare


Exterior Finish: Aluminum


Thread Type: UNF


Number of Pieces: 1


Size: ‎8AN to 5/16


Material: ‎Aluminum, Plastic


Brand: ‎EVIL ENERGY


Color: ‎Blackblue-straight


Connector Type: ‎Flare


Exterior Finish: ‎Aluminum


Thread Type: ‎UNF


Number of Pieces: ‎1


Manufacturer: ‎Speedwow Tuning


Item Weight: ‎0.634 ounces


Package Dimensions: ‎5.12 x 4.29 x 0.83 inches


Manufacturer Part Number: ‎KT01391AN8BK-AMZ1


Date First Available: June 24, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jan 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • High-Quality Male to SAE Quick-Disconnect Female EFI Fuel Rail Fitting
Size: 8AN to 5/16 Color: Blackblue-straight
I recently purchased the Male to 5/16" SAE Quick-Disconnect Female Push-On EFI Fuel Rail Fitting from Amazon, and I must say, it has exceeded my expectations. As an automotive enthusiast and DIY mechanic, I often work on my own vehicles, and this fitting has proven to be an invaluable addition to my toolkit. First, I was impressed with the build quality of this fitting. It is made from durable materials, ensuring its longevity and resistance to the harsh conditions under the hood. I appreciated the attention to detail and precision engineering that went into its construction. The installation process was a breeze. The fitting connected seamlessly to my fuel rail, ensuring a tight and secure connection without any leaks. Its push-on design allows for quick and effortless installation, saving me precious time during critical projects. Furthermore, the compatibility of this fitting is remarkable. It fits perfectly with my 5/16" SAE quick-disconnect female connectors, making it a versatile component for various fuel system setups. The compatibility with EFI systems is particularly noteworthy, as it guarantees optimal performance and fuel delivery. In terms of performance, this fitting delivers exceptional results. It maintains consistent fuel flow, ensuring proper combustion and engine efficiency. I haven't experienced any issues with fuel leakage or pressure loss since installing this fitting, which speaks volumes about its performance and reliability. Lastly, I would like to commend the customer service provided by the seller. They promptly answered my questions and provided assistance whenever needed. It's always reassuring to know that support is available should any concerns arise. In conclusion, the Male to 5/16" SAE Quick-Disconnect Female Push-On EFI Fuel Rail Fitting is a high-quality component that every automotive enthusiast and DIY mechanic should consider. Its durability, ease of installation, compatibility, and outstanding performance make it a worthwhile investment. I highly recommend this product for anyone in need of a reliable fitting for their EFI fuel rail setup. Disclaimer: I received no incentives or compensation for writing this review. ... show more
Reviewed in the United States on December 27, 2023 by Shopaholic

  • as described
Size: 6AN to 3/8 Color: Black-long rod
used this fitting before for the fuel system worked great. im using this to adapt my transmission cooler lines on the radiator side. doesn't fit well ill try cut locking side down to make them work. but , the fittings do work well for the fuel system .
Reviewed in the United States on September 24, 2023 by Nathan Wong

  • Perfect fit on my fuel pump
Size: 6AN to 3/8 & 5/16 Color: Black
Replaced all fuel lines on my 99 Suburban, and these fit the fuel pump perfectly with no leaks. Easy to install with the rest of my evil energy kit. I'd use these again
Reviewed in the United States on January 4, 2024 by Jose G.

  • Worked perfectly , soon will test for leaks
Size: 6AN to 3/8 & 5/16 Color: Black
The media could not be loaded. LS swap 5.3 to gbody
Reviewed in the United States on December 16, 2023 by Drew down Drew down

  • better than the qick disconnect
Size: 6AN to 3/8 - 2PCS Color: Black
don't do the quick disconnect style, just do these
Reviewed in the United States on February 15, 2024 by Jonathan T

  • LS SWAP
Size: 6AN to 3/8 & 5/16 Color: Blackblue-straight
Did a LS swap and need these to adapt 6an fuel fittings to stock C5 fuel regulator worked amazing no fuel leaks just push on and connect
Reviewed in the United States on December 21, 2023 by Alex

  • Pretty good part
Size: 6AN to 3/8 Color: Blackblue-90 degree
Packaging was really, really nice, considering you're going to rip it apart then throw it away. Came with extra plastic retainer clip, which was also really nice. Wish the finish was nicer, but it might improve over time. Will update if I have any issues
Reviewed in the United States on November 21, 2022 by Brad

  • Great
Size: 6AN to 5/16 - 2PCS Color: Blackblue-straight
Fits perfect
Reviewed in the United States on November 25, 2023 by Amazon Customer

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