The e85Freaks -8AN Male to Female Inline Adapter with 1/8 NPT Port adds a convenient 1/8 NPT gauge or sensor port directly into an existing -8AN fuel line or fluid-system connection.
With a -8AN male connection on one end and -8AN female connection on the other, the adapter can be installed inline without changing the AN size of the surrounding plumbing.
Quick Specs
- Male Connection: -8AN 37-degree flare
- Female Connection: -8AN 37-degree flare
- Auxiliary Port: 1/8 NPT female
- Material: 6061 aluminum
- Finish: Black anodized
- Application: Universal automotive fluid-system plumbing
- Quantity: One adapter fitting
Add a Gauge or Sensor Port to -8AN Plumbing
This adapter provides a simple way to add a 1/8 NPT port anywhere a compatible -8AN male-to-female inline connection can be installed.
Common uses include:
- Fuel-pressure gauges
- Electronic fuel-pressure sensors
- Pressure switches
- Temporary diagnostic pressure testing
- Other compatible 1/8 NPT sensors or fittings
Instead of replacing a fuel rail, regulator, filter, or other component simply to gain an additional sensor port, this adapter allows the port to be added directly into the AN plumbing where appropriate.
-8AN Male to Female Inline Design
The adapter maintains a -8AN connection through both ends, making it useful when a gauge or sensor needs to be added without changing the AN size of the surrounding plumbing.
The male and female AN connections use standard 37-degree flare sealing surfaces. AN flare connections seal at the flare rather than at the threads, so thread sealant should not be applied to the AN threads.
1/8 NPT Auxiliary Port
The side port uses a female 1/8 NPT thread, a common connection size for automotive pressure gauges, pressure sensors, switches, and other instrumentation.
Unlike the AN flare connections, NPT is a tapered pipe-thread connection. Install the gauge, sensor, adapter, or plug using the appropriate sealing method for the component being installed.
Useful for Permanent or Temporary Instrumentation
The 1/8 NPT port can be used for a permanent gauge or sensor installation or as a convenient diagnostic access point.
For example, the adapter can provide an accessible location to temporarily install a fuel-pressure gauge while testing or troubleshooting a fuel system, then be plugged when the test equipment is removed.
6061 Aluminum Construction
The fitting is manufactured from 6061 aluminum and finished in black anodizing for a clean appearance that integrates naturally with aftermarket AN plumbing.
Unbranded by Design
Like other e85Freaks AN plumbing components, this fitting uses a clean exterior without oversized logos or manufacturer markings.
Unbranded by design—because the fitting should complete your build, not compete with it.
What Is Included?
- One e85Freaks -8AN male to female inline adapter with 1/8 NPT port
Gauge, sensor, 1/8 NPT plug, AN hose, and other fuel-system components are not included.
Installation Notes
Confirm that the plumbing uses compatible -8AN 37-degree flare connections and that the gauge or sensor uses a compatible 1/8 NPT connection before installation.
After installation, pressurize the system and inspect the AN connections, 1/8 NPT port, and surrounding plumbing for leaks before operating the vehicle.
