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Vibrant -3AN to -4 ORB Flare Adapter vs EVIL ENERGY AN to ORB Fuel Rail Adapter

These are different adapters, not two versions of one part. The Vibrant 16818 is a -3AN male flare to -4 ORB male straight adapter with an O-ring, sized for small lines and tight spaces. The EVIL ENERGY adapter is an AN female swivel to ORB male fitting offered in 6AN through 12AN, straight or 90 degree. Buy the Vibrant for a -3AN to -4 ORB straight connection; buy EVIL ENERGY for larger AN lines or a 90 degree bend. Both use 6061 aluminum with a black anodized finish, and both rely on the standard 37-degree AN flare and ORB O-ring seal.

  • Choose the Vibrant 16818 if you need a straight -3AN male flare to -4 ORB male adapter for a small feed or gauge line.
  • Choose the EVIL ENERGY adapter if you need a female AN swivel to ORB male fitting in 6AN, 8AN, 10AN or 12AN, straight or 90 degree.

Prices

  • Vibrant -3AN to -4 ORB Flare Adapter: $24.84 at eBay (last seen Nov 9)
  • EVIL ENERGY AN to ORB Fuel Rail Adapter: $12.99 at Amazon (last seen Nov 10)
  • Difference: the EVIL ENERGY AN to ORB Fuel Rail Adapter is $11.85 cheaper than the Vibrant -3AN to -4 ORB Flare Adapter at the latest prices (Nov 9 and Nov 10)
Vibrant
Vibrant 16818 -3AN Male Flare to -4 ORB Male Straight Adapter w/O-Ring

Vibrant -3AN to -4 ORB Flare Adapter

Vibrant 16818 -3AN Male Flare to -4 ORB Male Straight Adapter w/O-Ring

$24.84at eBayChecked Nov 9
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Pros
  • Correct -3AN to -4 ORB straight adapter for small lines
  • O-ring included on the ORB end
  • 6061 aluminum with black anodized finish
  • Compact body fits tight routing
Cons
  • Only one size combination
  • No swivel on the AN side
  • No published pressure or temperature rating
  • Limited angle options
EVIL ENERGY
EVIL ENERGY AN Female to ORB Male Fuel Rail Adapter

EVIL ENERGY AN to ORB Fuel Rail Adapter

EVIL ENERGY AN Female to ORB Male Fuel Rail Adapter

$12.99at AmazonChecked 16 h ago
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Pros
  • Wide size range from 6AN to 12AN
  • Straight and 90 degree styles
  • Female AN swivel helps with alignment
  • Published 1500 PSI and -65°F to 212°F ratings
Cons
  • No -3AN or -4 ORB option
  • 90 degree not offered in every size
  • Buyer pays return shipping on change-of-mind returns
  • Inspect on delivery; damaged packages must not be signed for

What separates them

Vibrant -3AN to -4 ORB Flare AdapterEVIL ENERGY AN to ORB Fuel Rail Adapter
Connection type-3AN male flare to -4 ORB male, straightAN female swivel to ORB male
Size rangeSingle size: -3AN to -4 ORB6AN, 8AN, 10AN and 12AN combinations
Angle optionsStraight onlyStraight or 90 degree, depending on size
SwivelFixed male AN end, no swivelFemale AN side swivels for easier clocking
Material and finish6061 aluminum, black anodized6061-T6 aluminum, black anodized
Seal type37-degree AN flare and ORB O-ring37-degree AN flare and ORB O-ring
Published pressure and temperature ratingsNot published on the listing1500 PSI, -65°F to 212°F
Return termsNot stated on the listing30-day returns; buyer pays shipping unless the item is wrong or defective

Price history

$27.32$12.99
Nov 9Nov 10
  • Vibrant -3AN to -4 ORB Flare Adapter: lowest $27.32 on Nov 9 at Amazon; $27.32 on Nov 10.
  • EVIL ENERGY AN to ORB Fuel Rail Adapter: lowest $12.99 on Nov 10 at Amazon.

Prices at every store

Vibrant -3AN to -4 ORB Flare Adapter

  • eBayNew

    Availability unknownSold by jjboy925 (100% positive, 46,800 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $24.84Free shippingChecked Nov 9
    Visit eBay
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $27.32Free shippingChecked 16 h ago
    Visit Amazon

Store links may earn us a commission.

All 2 stores and price history →

EVIL ENERGY AN to ORB Fuel Rail Adapter

  • eBayNew

    In stockSold by baby-i-love-u (99.5% positive, 83,722 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $17.74Free shippingChecked 16 h ago
    Visit eBay
  • ievilenergyNew

    In stock

    $13.99+ $6.99 shippingChecked 16 h ago
    Visit ievilenergy
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $12.99Checked 16 h ago
    Visit Amazon

Store links may earn us a commission.

All 3 stores and price history →

Specs compared

SpecVibrant -3AN to -4 ORB Flare AdapterEVIL ENERGY AN to ORB Fuel Rail Adapter
FinishBlack AnodizedBlack anodized
Material6061 Aluminum6061-T6 aluminum
AN Size-3—
ORB Size-4—
Connection—AN female swivel to ORB male
Size range—6AN, 8AN, 10AN, and 12AN combinations
Angle options—Straight or 90 degree, depending on size
Seal type—37-degree AN flare and ORB O-ring
Maximum pressure—1500 PSI
Temperature range—-65°F to 212°F
AN-side mating connection—Matching male AN flare
ORB-side mating connection—Matching female ORB port
Show all 13 specsShow fewer specs
SpecVibrant -3AN to -4 ORB Flare AdapterEVIL ENERGY AN to ORB Fuel Rail Adapter
Actual Style choices—Straight, 90 Degree

What reviewers say

EVIL ENERGY AN to ORB Fuel Rail Adapter

Mixed feedback: many appreciate the low cost and decent build, but quality control issues like rough threads and occasional leaks are common.

What people mention
  • Build qualityMixedSome units are well-machined, but others have rough threads or imperfections.
  • LeaksCriticisedSeveral users report leaks at the ORB side, often due to O-ring issues.
  • ValuePraisedBuyers appreciate the low cost compared to name-brand fittings.
  • Thread qualityCriticisedThreads may be poorly cut, making installation difficult or causing cross-threading.

Questions and answers

Which is better for a small -3AN feed line?
The Vibrant 16818. It is the only one of the two made in -3AN, and it adapts to a -4 ORB port. The EVIL ENERGY adapter starts at 6AN.
Which handles a tight 90 degree bend?
The EVIL ENERGY adapter, in the sizes where the 90 degree style is offered. The Vibrant is straight only, so a bend needs a separate fitting or hose end.
Do both seal the same way?
Yes. Both use a 37-degree AN flare on the AN side and an O-ring on the ORB side, so assembly practice is the same.
Is the EVIL ENERGY swivel worth stepping up to?
If you need to clock the fitting after tightening the ORB end, yes. The swivel female AN side lets the hose end rotate. The Vibrant has a fixed male AN end.
Which has published pressure ratings?
EVIL ENERGY lists 1500 PSI and -65°F to 212°F. Vibrant does not publish ratings for this adapter, so check with the maker for high-pressure use.
Are the materials the same?
Both are 6061 aluminum with a black anodized finish. EVIL ENERGY specifies 6061-T6; Vibrant lists 6061 without the temper.

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