This listing covers the HPS AN Male to NPT Adapter Fitting [Straight] [-3 to 1/8 NPT] (Aluminum, Black), one of the parts our fitment desk checks most often.
![HPS AN Male to NPT Adapter Fitting [Straight] [-3 to 1/8 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_20f41be6-193d-4b1f-9937-a463c0f93bb2.jpg)
Inner diameter must match the fitting exactly, since eyeballing sizes is how leaks begin. Measure inner diameter at the fitting rather than estimating by eye.
Shops order the hps an male to npt adapter fitting from us in volume because the data on the page is accurate.
If your build is unusual, tell us and we will confirm the hps an male to npt adapter fitting against it.
The hps an male to npt adapter fitting ships protected, because a damaged part helps nobody.
What you are buying
- Material: Aluminum
- Finish: Black
- Category: AN Fitting Components
- Price: $14.67 with free shipping over $99
- Availability: in stock, dispatched from the USA
Ask before you order and the only surprise on installation day is how smoothly it goes.
More in this department: Hoses & Fittings · HPS AN Male to Male Union Adapter AN Fitting [Straight] [-4] (Aluminum, Black) · HPS AN Male to Male Union Adapter AN Fitting [Straight] [-2] (Aluminum, Black) · full catalog
Finished surfaces are wrapped and hardware is bagged, so the part arrives ready to install.
If you want independent guidance before ordering, the fuel economy maintenance guidance is a useful reference.
Before you order
Can you check fitment before I order?
Trim level, engine option and drive type decide most fitment questions. Send those three details or the VIN and we will check them for you.
What are the shipping times?
Most orders dispatch within one business day. You receive tracking by email the moment the parcel is handed to the carrier.
What is the return policy?
Contact support before removing or returning anything, so the right process starts on the first message and nothing is voided by accident.
How do you protect it in transit?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
![HPS NPT Allen Plug Fitting [1/4 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN932_1_fb2df01f-9eb8-4975-89d8-8afd92a49ee4-300x300.jpg)
![HPS NPT Hex Plug Fitting [1/8 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN933_1-300x300.jpg)
![HPS AN Male to Metric Adapter Fitting [Straight] [-6 to M18 x 1.5] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_f414e18f-37ad-4910-8abb-c7f9ac2080bf-300x300.jpg)
![HPS AN Male to Metric Adapter Fitting [Straight] [-6 to M14 x 1.5] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_ef8cf05a-8f9b-4a44-938e-d86cae0e4307-300x300.jpg)
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