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Adapter, 1/4" Female QC » -4AN Male, CL

Quick Overview

  • 1/4" female quick-connect to -4 AN JIC male
  • Crescent-lock hex screw-in retainer
  • Viton O-rings, E85 and gasoline
  • Fuel, e-vac, vacuum and boost lines
  • E85 compatible, black anodized 6061-T6 aluminum

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Item #: QDA-14F4CL

$16.89

per EACH (USD)
This is an obsolete Item
 
 

Quick-Connect Adapter, 1/4" Female to -4 AN JIC Male, Crescent Lock, Black

Connects a 1/4" female quick-connect to -4 AN JIC male.

The Racetronix QDA-14F4CL takes a 1/4" male quick-connect tube end, such as the end of a factory fuel line, fuel rail inlet or pump module outlet. The other end is a -4 AN JIC male. It is machined from 6061-T6 aluminum and black anodized.

Key features

  • 1/4" female quick-connect.
  • -4 AN JIC male.
  • Crescent-lock hex screw-in retainer.
  • Viton O-rings in the female quick-connect.
  • Black anodized 6061-T6 aluminum, E85 compatible.
  • For fuel systems, e-vac systems and vacuum or boost lines.

How to connect

  1. Unscrew the crescent lock from the back of the female quick-connect.
  2. Slide the lock onto the male tube end first. On locks with a slot, line the tube's raised bead (barb) up with the slot.
  3. Push the male tube end fully into the adapter.
  4. Thread the crescent lock back in and tighten it by its hex until snug. No separate clip is used.

Connect the AN end to an AN female hose end or fitting of the same size. AN (37° flare) fittings seal on the flare: do not use thread sealant or tape.

Choosing the size

Quick-connect sizes go by the outside diameter of the male tube end. Measure the tube just behind the raised bead: 1/4" is about 6.4 mm, 5/16" about 7.9 mm (often called 8 mm), 3/8" about 9.5 mm (often called 10 mm) and 1/2" 12.7 mm. A female quick-connect only fits the male size it is made for.

Match the quick-connect size to the line or component you are connecting, then choose the other end to suit your hose or fitting.

EFI quick-connect adapter chart: all parts

PartQuick-connect sizeQuick-connect genderOther endOther end sizeOther end genderPortAngleRetainer
QDA-14F4CL1/4"FemaleAN JIC-4MaleStraightCrescent lock
QDA-14F6CL1/4"FemaleAN JIC-6MaleStraightCrescent lock
QDA-56F65/16"FemaleAN JIC-6MaleStraightClip
QDA-56F6CL5/16"FemaleAN JIC-6MaleStraightCrescent lock
QDA-56F6MP5/16"FemaleAN JIC-6Male1/8" NPTStraightCrescent lock
QDA-56F8CL5/16"FemaleAN JIC-8MaleStraightCrescent lock
QDA-38F10CL3/8"FemaleAN JIC-10MaleStraightCrescent lock
QDA-38F63/8"FemaleAN JIC-6MaleStraightClip
QDA-38F6CL3/8"FemaleAN JIC-6MaleStraightCrescent lock
QDA-38F6P3/8"FemaleAN JIC-6Male1/8" NPTStraightCrescent lock
QDA-38F83/8"FemaleAN JIC-8MaleStraightClip
QDA-38F8CL3/8"FemaleAN JIC-8MaleStraightCrescent lock
QDA-38F8P3/8"FemaleAN JIC-8Male1/8" NPTStraightCrescent lock
QDA-12F10CL1/2"FemaleAN JIC-10MaleStraightCrescent lock
QDA-12F8CL1/2"FemaleAN JIC-8MaleStraightCrescent lock
QDA-9056F65/16"FemaleAN JIC-6Male90°Clip
QDA-FF9056F65/16"FemaleAN JIC-6Male90° radius bendCrescent lock
QDA-FF9056F85/16"FemaleAN JIC-8Male90° radius bendCrescent lock
QDA-9038F63/8"FemaleAN JIC-6Male90°Clip
QDA-9038F83/8"FemaleAN JIC-8Male90°Clip
QDA-FF9038F63/8"FemaleAN JIC-6Male90° radius bendCrescent lock
QDA-FF9038F83/8"FemaleAN JIC-8Male90° radius bendCrescent lock
QDA-56F6FCL5/16"FemaleAN JIC-6FemaleStraightCrescent lock
QDA-38F8FCL3/8"FemaleAN JIC-8FemaleStraightCrescent lock
QDA-56FHB385/16"FemaleHose barb3/8"StraightPlastic insert
QDA-56FHB565/16"FemaleHose barb5/16"StraightPlastic insert
QDA-56FHB56CL5/16"FemaleHose barb5/16"StraightCrescent lock
QDA-38FHB383/8"FemaleHose barb3/8"StraightPlastic insert
QDA-38FHB38CL3/8"FemaleHose barb3/8"StraightCrescent lock
QDA-38FHB56CL3/8"FemaleHose barb5/16"StraightCrescent lock
FIT-T38QDF383/8"FemaleTube compression3/8"Straight
FIT-T38QDF90383/8"FemaleTube compression3/8"90°
QDA-56F56CL5/16"FemaleQuick-connect5/16"FemaleStraightCrescent lock
QDA-38F38CL3/8"FemaleQuick-connect3/8"FemaleStraightCrescent lock
QDA-56F56MP5/16"FemaleQuick-connect5/16"Male1/8" NPTStraightCrescent lock
QDA-56FM6RFP5/16"FemaleQuick-connect5/16"Male-6 AN ORBStraightPlastic insert
QDA-38F38MP3/8"FemaleQuick-connect3/8"Male1/8" NPTStraightCrescent lock
QDA-38FM8RFP3/8"FemaleQuick-connect3/8"Male-8 AN ORB + 1/8" NPTStraightCrescent lock
QDA-14M41/4"MaleAN JIC-4MaleStraight
QDA-14M61/4"MaleAN JIC-6MaleStraight
QDA-56M65/16"MaleAN JIC-6MaleStraight
QDA-56M85/16"MaleAN JIC-8MaleStraight
QDA-38M103/8"MaleAN JIC-10MaleStraight
QDA-38M63/8"MaleAN JIC-6MaleStraight
QDA-38M83/8"MaleAN JIC-8MaleStraight
QDA-12M101/2"MaleAN JIC-10MaleStraight
QDA-12M61/2"MaleAN JIC-6MaleStraight
QDA-12M81/2"MaleAN JIC-8MaleStraight
QDA-9056M65/16"MaleAN JIC-6Male90°
QDA-9056M85/16"MaleAN JIC-8Male90°
QDA-9038M63/8"MaleAN JIC-6Male90°
QDA-9038M83/8"MaleAN JIC-8Male90°
QDA-38M6F3/8"MaleAN JIC-6FemaleStraight
QDA-38M6FSS3/8"MaleAN JIC-6FemaleStraight
QDA-38M10R3/8"MaleAN ORB-10MaleStraight
QDA-38M8R3/8"MaleAN ORB-8MaleStraight
QDA-12M10R1/2"MaleAN ORB-10MaleStraight
QDA-38M38MPT3/8"MaleNPT3/8"MaleStraight
QDA-56MB10S5/16"MaleMulti-barb, short10 mmStraight
QDA-56MB8S5/16"MaleMulti-barb, short8 mmStraight
QDA-3753/8"MaleMulti-barb10 mm90°
QDA-38MB11E3/8"MaleMulti-barb, extended10 mmStraight
QDA-38MB11M3/8"MaleMulti-barb, medium10 mmStraight
QDA-38MB11S3/8"MaleMulti-barb, short10 mmStraight
QDA-56M565/16"MaleQuick-connect5/16"MaleStraight
QDA-38M383/8"MaleQuick-connect3/8"MaleStraight
QDA-38P3/8"MalePlug (closed)Straight
QDA-56CL5/16"FemaleCrescent lock (retainer only)
QDA-38CL3/8"FemaleCrescent lock (retainer only)
QDA-INSERT565/16"FemalePlastic insert (retainer only)
QDA-INSERT383/8"FemalePlastic insert (retainer only)

Click a column heading to sort. The highlighted row is this part.

Specifications

Part numberQDA-14F4CL
TypeFemale quick-connect to AN JIC male
Quick-connect1/4" female quick-connect
Other end-4 AN JIC male
AngleStraight
RetainerCrescent-lock hex screw-in retainer
SealsViton O-rings
Material6061-T6 aluminum, black anodized
Fuel compatibilityGasoline and E85. Not recommended for methanol or brake fluid.

Frequently asked questions

How do I tell 5/16" from 3/8"?

Measure the outside diameter of the male tube just behind its raised bead: 5/16" is about 7.9 mm and 3/8" about 9.5 mm.

What does the crescent lock do?

It is the retainer. It threads into the back of the adapter over the male tube's bead and holds the line in. Fit it over the tube before pushing the tube in, then screw it home. A replacement is sold separately: QDA-56CL (5/16") or QDA-38CL (3/8").

Can I use it with E85?

Yes, with gasoline and E85. The Viton O-rings are not recommended for methanol or brake fluid.

Which other adapters are there?

The chart above lists every EFI quick-connect adapter we stock, with links. Sort it by quick-connect size or by the other end to find the one you need.

Questions and support

Not sure which adapter you need? Email [email protected] with your vehicle, the line sizes and a photo of the connection before you order.

Racetronix provides technical support to verified customers through our support forum, not by phone or email. Please request forum access when you place your order so your account is approved before your parts arrive. The forum is moderated, open 24/7, and holds a knowledge base going back to 1999.

© 2026 Racetronix. All rights reserved. | Part No: QDA-14F4CL | Revision: Alpha