Gauge port or pressure port AN adapter fitting
Gauge port or pressure port AN adapter fitting
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$15.99 USD
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$15.99 USD
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Gauge Port / Pressure Port Adapter Fitting
Add a clean, serviceable 1/8" NPT pressure port anywhere in your plumbing. This adapter converts AN, ORB, or NPT connections to a convenient 1/8" NPT gauge/take-off port—perfect for fuel pressure gauges, sensor senders, or diagnostics on EFI systems.
What’s included
- Gauge/Pressure Port Adapter with integrated 1/8" NPT port (gauge/sensor not included)
Select your base connection in the options: AN (flare), ORB (O-ring boss), or NPT (tapered). All versions provide a 1/8" NPT side port for gauges/senders.
Choose your base connection
- AN (flare) → 1/8" NPT port: in-line with PTFE hose & AN ends for tidy installs.
- ORB (O-ring boss) → 1/8" NPT port: ideal on regulators, filters, and fuel rails.
- NPT (tapered) → 1/8" NPT port: add a gauge port to NPT-based hardware.
- Accurate monitoring: mount a mechanical gauge or sensor where it actually matters.
- Service-friendly: standardized 1/8" NPT port for gauges, transducers, or test lines.
- Clean integration: avoids clumsy tees and stacks of adapters.
- PTFE system ready: pairs perfectly with PTFE hose and AN fittings for EFI builds.
Where this adapter shines
- Fuel pressure gauges at the regulator, filter outlet, or rail feed.
- Sensor senders (1/8" NPT) for EFI data logging or dash inputs.
- Temporary test ports during tuning and diagnostics.
Specs
| Base side | AN (flare) or ORB (O-ring) or NPT (tapered) |
| Port | 1/8" NPT (gauge/sender) |
| Material/finish | CNC-machined aluminum, anodized |
| Primary use | Fuel system pressure monitoring |
Install tips:
- AN flare: no sealant on the flare. Hold the base with soft aluminum vice jaws; tighten with an aluminum AN wrench.
- ORB: lightly oil the O-ring; thread by hand to seat the O-ring. Do not over-torque.
- NPT threads: use a fuel-safe thread sealant or PTFE paste on the NPT threads only (not on AN/ORB). Avoid tape shreds entering the system.
- Install the gauge/sender into the 1/8" NPT port with sealant as specified by the gauge manufacturer.
- For EFI, run a 10 micron or finer (≤10 μm) filter on the pressure side and pressure-test after assembly.
PTFE hose tip: when cutting braided PTFE hose, wrap the cut area tightly with tape before shearing; remove tape after seating the olive/ferrule. See our install guide.
Important: For fuel system use. Not for brake or power steering.
Recommended add-ons
- PTFE AN hose end fittings (match your AN size)
- AN adapter fittings (hardline, metric, Y-adapters)
- EFI fuel filters (≤10 μm)
- AN hose install tools (aluminum AN wrench & vice jaws)
Lifetime Warranty on adapter fittings
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Expert Support
Quick FAQs
Will this work on my regulator/fuel rail?
Yes—choose the base that matches your port (AN flare, ORB O-ring, or NPT). All versions provide a 1/8" NPT gauge/sender port.
Do I need thread sealant?
Use fuel-safe sealant on NPT threads only. Do not use sealant on AN flares or ORB O-rings.
Is a plug included for the 1/8" NPT port?
If you need to cap the port, add a 1/8" NPT plug from our adapters collection.
Warranty
Adapter fittings are covered by our lifetime warranty against manufacturing defects.
Shipping
Fast shipping. Free shipping on orders $99+. Rates and options shown at checkout.
Returns
Hassle-free returns on new, unused items in original packaging per our Returns Policy.
Quality
CNC-machined adapter designed to pair with PTFE AN plumbing for leak-resistant EFI performance.
