PartSmith Co. supplies the HPS AN Male to Male Union Adapter (Reducer) Fitting [Straight] [AN -8 to -4] (Aluminum, Black) to drivers, shops and fleets across the USA.
![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-a012-4a693c216e11-2.jpg)
Inner diameter must match the fitting exactly, since eyeballing sizes is how leaks begin. Use constant tension or lined clamps so the hose surface survives heat cycles.
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.
Explore more: Hoses & Fittings · HPS AN Female Bulkhead Jam Nut AN Fitting [Straight] [-8] (Aluminum, Black) · HPS AN Female Bulkhead Jam Nut AN Fitting [Straight] [-6] (Aluminum, Black) · full catalog
Parcels leave our USA warehouse promptly and arrive protected, because packaging failures are returns waiting to happen.
Background reading that is not trying to sell you anything: the NHTSA vehicle safety hub.
Buyer questions
Can you check fitment before I order?
Share your vehicle details with our team and we cross reference this listing before dispatch. Anything doubtful gets a message from us rather than a shipment.
Do you ship the same day?
We ship from a USA warehouse with quick dispatch, and delivery estimates appear at checkout once you enter your address.
How do returns work here?
Report any transit damage with a photo and we will send a replacement or refund you. We handle the carrier claim ourselves.
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] [-10] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/150-120_1_2ac48160-6f50-4c53-8c37-0cf776a30fac-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] [-8] (Aluminum, Black)](https://partsmithco.com/wp-content/uploads/2026/07/150-120_1_b7ae2165-4f89-472c-a9fc-72ba3e09b875-300x300.jpg)
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