The HPS AN Male to Female Expander Adapter Fitting [Straight] [AN -3 to -4] (Aluminum, Black) is one of our steady sellers in Hoses & Fittings, and it ships from the USA.
![HPS AN Male to Female Expander Adapter Fitting [Straight] [AN -3 to -4] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN951_1-2.jpg)
Inner diameter must match the fitting exactly, since eyeballing sizes is how leaks begin. Keep petroleum away from standard silicone unless the hose is lined for it.
Buyers comparing the hps an male to female expander adapter will find the specification detail on this page rather than in a catalog footnote.
The hps an male to female expander adapter listed here is checked against your vehicle before dispatch.
Every hps an male to female expander adapter order goes through the same fitment review.
Specifications
- Material: Aluminum
- Finish: Black
- Category: AN Fitting Components
- Price: $17.58 with free shipping over $99
- Availability: in stock, dispatched from the USA
Unsure about the specification? Our desk cross references against manufacturer data at no cost.
See also: Hoses & Fittings · HPS AN Female Bulkhead Jam Nut AN Fitting [Straight] [-12] (Aluminum, Black) · HPS AN Female Bulkhead Jam Nut AN Fitting [Straight] [-10] (Aluminum, Black) · full catalog
Every parcel carries tracking that updates with each carrier scan until it reaches your door.
If you want independent guidance before ordering, the Car Care Council maintenance tips is a useful reference.
Common questions
What do you need to verify fitment?
Our parts team confirms fitment before the box is sealed. Contact us with your vehicle details and we will settle it in advance.
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.
Is there a warranty on this?
Parts are covered against defects for the period stated on this page, and non defect returns follow our standard returns window.
What happens before my order ships?
We verify diameter and reinforcement specification on every hose order.
![HPS Push-on Hose End to AN Female Fitting [120 Degree] [-8] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/150-120_1_b7ae2165-4f89-472c-a9fc-72ba3e09b875-300x300.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)
![HPS Push-on Hose End to AN Female Fitting [120 Degree] [-10] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/150-120_1_2ac48160-6f50-4c53-8c37-0cf776a30fac-300x300.jpg)
![HPS NPT Allen Plug Fitting [1/16 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN932_1-300x300.jpg)
Reviews
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