The e85Freaks -6AN Male to Male Adapter with 1/8 NPT Port joins two compatible female -6AN connections while adding a convenient 1/8 NPT gauge or sensor port to the fluid system.
With a male -6AN connection on both ends, the adapter is useful anywhere two female -6AN components need to be connected while also providing a location for a pressure gauge, electronic pressure sensor, pressure switch, or diagnostic fitting.
Quick Specs
- Connection 1: Male -6AN 37-degree flare
- Connection 2: Male -6AN 37-degree flare
- Auxiliary Port: Female 1/8 NPT
- Material: 6061 aluminum
- Finish: Black anodized
- Application: Universal automotive fluid-system plumbing
- Quantity: One adapter fitting
Join Two Female -6AN Connections
This adapter provides a male -6AN connection on both ends, allowing two compatible female -6AN components to be connected directly.
At the same time, the integrated 1/8 NPT side port provides an additional location for instrumentation or diagnostic equipment without requiring another separate adapter in the system.
Add a Gauge or Sensor Port to -6AN Plumbing
The integrated 1/8 NPT female port can be used with a wide variety of compatible automotive instrumentation.
Common uses include:
- Fuel-pressure gauges
- Electronic fuel-pressure sensors
- Pressure switches
- Temporary diagnostic pressure testing
- Other compatible 1/8 NPT sensors or fittings
Male -6AN 37-Degree Flare Connections
Both AN ends use standard male -6AN 37-degree flare sealing surfaces for connection to compatible female -6AN hose ends, adapters, regulators, filters, rails, and other AN plumbing components.
AN connections seal at the 37-degree flare surface rather than at the threads, so thread sealant should not be applied to the AN flare threads.
1/8 NPT Auxiliary Port
The side port uses a female 1/8 NPT thread, a common connection size for automotive pressure gauges, sensors, switches, and diagnostic equipment.
Unlike the AN connections, NPT uses a tapered pipe thread. Install the gauge, sensor, plug, or other component using the appropriate sealing method for that component.
Useful for Permanent or Temporary Instrumentation
The 1/8 NPT port can support a permanently installed pressure sensor or gauge, but it is equally useful as a temporary diagnostic connection.
For example, a pressure gauge can be installed while diagnosing a fuel-system issue and the port can later be sealed with a compatible 1/8 NPT plug 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 -6AN male to male 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 both mating components use compatible female -6AN 37-degree flare connections and that any gauge or sensor installed in the side port uses a compatible 1/8 NPT connection.
After installation, pressurize the system and inspect both AN connections, the 1/8 NPT port, and the surrounding plumbing for leaks before operating the vehicle.
