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Brass Adapter, 0.25 Inch Female 42 deg Inverted Flare To 1/4-18 Male NPT, Straight

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Alternate Part Numbers
Alternate Part Number C1HD39, Alternate Part Number FMC601194, Alternate Part Number MI-00333371, Alternate Part Number MINO-00925F73125
Application
Other - Hydraulic brake, power steering, fuel lines and transmission cooler lines, LP and natural gas (special order)
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Aeroquip
Pack Size
1.00
UOM
EA
End Gender 1
13554
End Gender 2
13555
End Size 1
0.25
End Size 2
0.44
End Type 1
NPTF
End Type 2
UNF
L
0.89
Minimum Working Temperature
-40
Supplier Part Number
202X4X4
Thread 1
1/4-18
Thread Sealant
No
Tube O.D.
0.25
Tube O.D.
0.25
Product Weight
0.10 lbs
Product Questions & Answers 2

Product Questions & Answers

Been trying to sort out if this fitting'll work on a transmission cooler line setup. Does the 42-degree inverted flare end mate up right for that kind of application?
Question by: Keith P on Mar 15, 2026, 10:39 AM
Transmission cooler lines are one of the listed applications for this adapter, so yeah, it fits right in with that kind of work. The 0.25 inch female 42-degree inverted flare end connects on one side, and the 1/4-18 male NPT threads in on the other. Brass construction holds up well to the fluid exposure and temperature swings that cooler line setups tend to see, and the straight configuration keeps the install pretty clean without needing to fight any angle.
Answer by: Customer Support on Mar 17, 2026, 8:22 AM
Will this adapter work for hooking up the fuel line on my old Ford pickup?
Question by: Lyle S on Mar 31, 2025, 1:54 PM
This brass adapter can be used in fuel lines, along with hydraulic brake systems, power steering, and transmission cooler lines. Just make sure the thread sizes match up with your truck; it's designed for a 0.25 Inch Female 42-degree Inverted Flare to a 1/4-18 Male NPT connection.
Answer by: Customer Support on Apr 2, 2025, 12:29 PM

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