APEX DESIGN USA 3/8" Braided Hose to 1/4" NPT Male Fitting with Cover Nut - Air System Adapter

APEX 3/8" Braided Hose to 1/4" NPT Male Air Fitting

The APEX DESIGN USA 3/8" braided hose to 1/4" NPT male fitting with cover nut is a hose-end air system adapter for customers building, repairing or refining an APEX braided air line. It connects APEX 3/8" braided hose to a female 1/4" NPT fitting, helping off-road, overland and workshop air setups stay serviceable without replacing larger components.

What This Air System Adapter Does

Air systems depend on matching hose ends and threaded ports. If the hose and port do not match, a compressor, tyre inflation setup or pneumatic accessory cannot be connected cleanly. This APEX DESIGN USA fitting is designed to thread together and clamp onto the end of APEX braided hose, creating a 1/4" NPT male connection for a female 1/4" NPT fitting.

• Adapts APEX 3/8" braided hose to a 1/4" NPT male connection.
• Mates with female 1/4" NPT fittings where the rest of the system is compatible.
• Includes a cover nut as part of the hose-end assembly.
• Useful for servicing air lines or fittings while on the trail or on the go.
• Suited to onboard air, portable air and workshop air-line builds where the sizes match.

Who This APEX Air Fitting Is For

Choose this fitting if you are working with APEX braided hose and need a 1/4" NPT male hose-end connection. It is a small supporting component, not a complete compressor kit, tyre inflation system or vehicle-specific upgrade.

Compatibility is based on hose size and thread size rather than vehicle model. Ford Raptor, 4x4 and overlanding owners should confirm the actual air-line dimensions and port type before ordering.

Building the Rest of an APEX Air Line

If you are assembling a broader tyre inflation or air-management setup, this fitting can be matched with other APEX components. For multi-tyre layouts, compare the APEX DESIGN USA 3/8" Free Flow Y Fitting. For an alternative air-line adapter, see the APEX DESIGN USA Banjo Fitting. If you need a quick-connect style 1/4" NPT connection, the APEX DESIGN USA Compact Quick Coupler to 1/4 NPT is also worth checking.

Technical Specifications

Before Ordering and Installation Checks

Confirm that your hose is APEX 3/8" braided hose and that the part you are connecting to uses a female 1/4" NPT fitting. Check the full air-system layout before assembly, especially if you are combining compressor outlets, gauges, valves, couplers or tyre inflation accessories.

The fitting is designed to thread together and clamp onto the hose end. After assembly, inspect the connection before pressurising the system. If your application requires a specific material, pressure rating or temperature rating, confirm suitability before use.

Frequently Asked Questions

Is this a complete tyre inflation kit?

No. This is a hose-end fitting with a cover nut. It is used as one component within a compatible air system.

What hose does this fitting suit?

It is sized for APEX 3/8" braided hose. Other hose types should be checked carefully before use.

What thread does the fitting use?

The threaded end is 1/4" NPT male and is intended to connect to a female 1/4" NPT fitting.

Is it vehicle specific?

No exact vehicle fitment is confirmed. Choose it by hose size, thread type and your air-system layout.

Can it be carried as a trail spare?

Yes, it is useful for servicing compatible air lines or fittings while on the trail or on the go.

Are material and pressure ratings listed?

No verified material, pressure rating or temperature rating is available for this item. Confirm suitability if those details are critical to your build.

Payment Terms

For UK customers, the price shown includes VAT, customs charges and supplier shipping costs, so you can order with confidence and avoid unexpected customs bills after purchase. If any customs-related questions or issues arise, Hoonies Adrenaline will handle them for you.

For orders outside the UK, please contact us through the contact form before purchasing so we can prepare a personalised quote.

Shipping and Lead Times

We aim to keep strong stock availability across the products we sell, but imported, specialist and custom-order items may have a lead time. If you need an estimated delivery window before ordering, please contact us and we will be happy to check this for you.

If you place an order for an item that is currently out of stock or already on order with a supplier, Hoonies Adrenaline will contact you as soon as possible with an update.