Here is the HPS AN Male to Male Union Adapter (Reducer) Fitting [Straight] [AN -8 to -4] (Aluminum, Black), listed with the specifications that actually decide whether it fits.
![HPS AN Male to Male Union Adapter (Reducer) Fitting [Straight] [AN -8 to -4] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN919_1_3a5ae830-c6dd-4666-a012-4a693c216e11.jpg)
Hoses and fittings work under pressure and heat, where material choice decides service life. Route clear of heat sources and moving components.
The hps an male to male union adapter ships protected, because a damaged part helps nobody.
Drivers choose the hps an male to male union adapter here for honest specification detail and quick dispatch.
Buyers comparing the hps an male to male union adapter will find the specification detail on this page rather than in a catalog footnote.
At a glance
- Material: Aluminum
- Finish: Black
- Category: AN Fitting Components
- Price: $17.28 with free shipping over $99
- Availability: in stock, dispatched from the USA
If your vehicle has been modified, tell us, since the factory data will not show a previous owner changes.
Also worth a look: Hoses & Fittings · HPS AN Female Bulkhead Jam Nut AN Fitting [Straight] [-4] (Aluminum, Black) · HPS AN Female Bulkhead Jam Nut AN Fitting [Straight] [-2] (Aluminum, Black) · full catalog
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Quick answers
How do I know this is the right part?
Send your VIN or your year, make and model and our fitment desk confirms the part against manufacturer data before it ships. The check is free and usually answered the same business day.
How long does delivery take?
Same business day dispatch applies to orders placed before the early afternoon cutoff, with tracking that updates at every carrier scan.
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 verify this part?
Lines and fittings are checked for pressure rating, inner diameter and ply count before shipping.
![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 Male to Metric Adapter Fitting [Straight] [-6 to M16 x 1.5] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_b0b8871f-2b21-4f3d-9270-e611d31355a7-300x300.jpg)
![HPS AN Male to Metric Adapter Fitting [Straight] [-6 to M22 x 1.5] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/AN816-06-X_pic1_1_84a0bab4-582d-4dc1-a176-6237879f811f-300x300.jpg)
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