PartSmith Co. keeps the HPS AN Male to Male Union Adapter Fitting [90 Degree] [AN -4] (Aluminum, Black) in stock so your repair is not waiting on a supplier.
![HPS AN Male to Male Union Adapter Fitting [90 Degree] [AN -4] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN821-M_pic1_1_614bf7ed-e5bf-4f5a-ac76-1627fd2f440c-3.jpg)
Silicone tolerates far more heat than standard rubber and stays flexible for many years. Re check clamp torque after the first few heat cycles.
At a glance
- Material: Aluminum
- Finish: Black
- Category: AN Fitting Components
- Price: $23.10 with free shipping over $99
- Availability: in stock, dispatched from the USA
Every order gets a fitment review before dispatch, and anything doubtful gets a message rather than a shipment.
Customers also open: Hoses & Fittings · HPS AN Male to Male Union Adapter AN Fitting [Straight] [-2] (Aluminum, Black) · HPS AN Male to Male Union Adapter AN Fitting [Straight] [-16] (Aluminum, Black) · full catalog
Finished surfaces are wrapped and hardware is bagged, so the part arrives ready to install.
For neutral background on this kind of maintenance, see the fuel economy maintenance guidance.
Frequently asked questions
Will this part fit my vehicle?
We verify every doubtful order by hand. Give us the year, make, model and engine option and we will confirm compatibility in one reply.
How fast does this ship?
Orders placed before early afternoon on a business day usually leave our USA warehouse the same day, and tracking is emailed when the label is created.
What is the return policy?
A straightforward returns window applies from delivery. Keep the original packaging until you have test fitted the part and contact support for a fast exchange or refund.
Is the part inspected before dispatch?
We verify diameter and reinforcement specification on every hose order.
![HPS AN 3-Way Tee Adapter (Tee with female on run) Fitting [Tee] [AN -6] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN9261_1_13ceb207-d699-42c1-9a48-035b83f670cc-300x300.jpg)
![HPS AN Male to NPT Adapter Fitting [Straight] [-8 to 3/8 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_a94183bf-0c19-4e60-a94a-8eee322012ab-300x300.jpg)
![HPS AN Female Flare Cap Fitting [Straight] [AN -16] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN929_1_c735b1de-9c47-4378-8770-106277ec99ca-300x300.jpg)
![HPS AN Male to NPT Adapter Fitting [Straight] [-8 to 1/2 NPT] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_b76d947d-1e43-4e38-b986-a8f6682cdca6-300x300.jpg)
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