VIAIR 7-Way to 2-Pin SAE Adapter — 12" Cable, 12-Gauge Wire, Smart Connect Compatible

The VIAIR 7-Way Power Access adapter converts a vehicle’s 7-way trailer plug into a protected 12V 2-pin SAE outlet for powering compressors and 12V accessories without altering trailer lighting or brake signals.

Use the VIAIR 7-Way Power Access to draw reliable 12-volt power from your truck or tow vehicle’s hitch connection. Built with heavy-duty 12-gauge wiring and a patent-pending automotive-grade design, this 12-inch adapter gives you a quick, safe way to run portable air compressors, coolers, battery chargers, and other 12V devices using the existing 7-way port. It’s also engineered to be compatible with modern Smart Connect towing systems so you can power accessories without triggering trailer alerts or interfering with lighting and braking circuits.

How do I set up the VIAIR 7-Way Power Access in seconds?

Installation is straightforward and requires no tools or under-hood access. Simply insert the adapter into the vehicle’s standard 7-way receptacle, then attach your 2-pin SAE plug from the accessory. It’s compact enough to stay in your emergency kit or glove box for instant use.

• Plug-and-play: push the 7-way adapter into the vehicle socket
• Attach accessory to the 2-pin SAE connector
• No battery clamps or wiring changes needed
• 12" cable length for easy reach and tidy storage

Will it work with vehicles that have Smart Connect towing systems?

Yes — the adapter is designed to be Smart Connect compatible so it draws accessory power without interrupting brake lights, turn signals, or trailer-system alerts. That compatibility helps avoid false warnings and keeps tow-safety systems fully operational while powering peripherals.

• Smart Connect ready: preserves trailer lighting and brake circuits
• Protected power draw to avoid triggering system alerts
• Works with modern tow vehicle wiring architectures
• Maintains normal tow functions while powering accessories

What kinds of devices can I safely run from the 7-way port?

The adapter delivers protected 12V power suitable for many automotive and recreational accessories. It’s ideal for portable air compressors, inflators, coolers, battery chargers, and low-amp 12V devices used during camping, tailgating, or roadside assistance. Avoid high-draw equipment that exceeds the vehicle or circuit ratings.

• Portable air compressors and tire inflators
• 12V coolers and small refrigerators
• Battery maintainers and small battery chargers
• Lighting, pumps, and other low-amp accessories

How durable and portable is the VIAIR trailer plug adapter?

The adapter’s 12-gauge automotive wiring and robust connector design are built for regular outdoor and towing use. At about 12 inches long, it’s small enough to store in a glove compartment, toolbox, or emergency pack, yet constructed to withstand repeated insertions and typical road conditions.

• 12-gauge wiring for dependable power delivery
• Compact 12" length for convenient storage and transport
• Automotive-grade materials for everyday towing use
• Patent-pending connector engineered for long life

Who is this for: The VIAIR 7-Way Power Access adapter suits drivers, DIYers and outdoor enthusiasts who want an on-demand 12V power source at the rear hitch without modifying vehicle wiring. It’s especially useful for truck owners, RVers, boaters, and anyone who uses portable compressors, coolers, or emergency gear and needs a quick, protected power connection from the vehicle’s 7-way trailer plug.