The Milwaukee 2475-20 M12 Compact Inflator is a cordless inflator built for fast, accurate tire inflation on the go. This is a cordless inflator designed for tire inflation and pressure top-offs. Model Number 2475-20. If you already run Milwaukee M12 batteries and want a compact tool that lives in the truck, garage, or trailer, this is the kind of tool that saves time the first time a tire is low and you do not want to mess with a full-size compressor.

What makes this inflator matter is how it balances speed with control. Milwaukee rates it for true 120 PSI capability, and the high-efficiency pump and motor are built for more than bike tires and beach toys. It is meant for car tires, light truck tires, and compact equipment tires. On the job or on the road, that means you can top off passenger vehicle tires quickly and handle more demanding inflation work without being tied to an outlet or a bulky air tank.

The standout feature here is TrueFill auto shut-off. In practical terms, you set the target pressure, start the fill, and the tool shuts off at the desired PSI. That matters because tire work is usually done in a hurry, often in awkward positions, and usually while multitasking. The digital gauge gives you both target and current pressure readings on a back-lit display, so you are not guessing, counting seconds, or checking with a separate gauge every few moments.

Milwaukee also built this unit like a tool, not like a glovebox gadget. The reinforced cage helps it deal with vehicle storage and jobsite bumps, while the anti-vibration feet keep the tool from walking around while it runs. The 26 inch hose gives you enough reach to work around the valve stem without fighting the tool body, and the all-brass Schrader chuck is the right call for repeated tire use because it is more durable than cheap plastic fittings.

From a portability standpoint, the 6.5 inch length, 6.5 inch width, and 7.5 inch height keep it easy to store in a truck compartment, back seat bin, or service van drawer. At 3.83 pounds, it is light enough to carry one-handed but still substantial enough to stay planted while running. That is a useful middle ground for mobile technicians, contractors, and anyone who wants a real cordless tire inflator without jumping up to a much larger platform.

As a bare tool, the Milwaukee 2475-20 M12 Compact Inflator is meant for users already invested in the Milwaukee M12 battery system. It runs on M12 batteries, so it drops into the same platform used by a wide range of Milwaukee compact cordless tools. In the box, Milwaukee includes a ball inflation needle, Presta chuck, Schrader chuck, and inflator nozzle, which broadens its usefulness beyond vehicle tires to sports equipment and other inflation jobs that come up around the house, shop, or trailer.

This is a smart buy for mechanics, mobile service techs, contractors, and serious DIY users who want a compact cordless air solution for routine tire maintenance. It is especially good for anyone who needs something faster and more accurate than a cheap 12V inflator, but does not need a full compressor setup. If your main use is topping off tires, dialing in pressure accurately, and keeping an inflator in the vehicle at all times, this one makes a lot of sense.

Milwaukee 2475-20 M12 Compact Inflator Is the One You Keep in the Truck

This is a compact cordless inflator that earns its spot by being fast enough for real tire work and accurate enough that you do not have to babysit it.

• Who it's for: M12 users, mechanics, contractors, and drivers who want a reliable cordless tire inflator for car, light truck, and small equipment tires.
• Why it stands out: The mix of true 120 PSI capability, digital target pressure setting, and TrueFill auto shut-off makes it more useful than the cheap inflators people replace every year.
• Worth knowing: This is a bare tool, so you will need an M12 battery and charger if you are not already on the platform.

• What battery platform does this inflator use? It is part of the Milwaukee M12 system and runs on M12 batteries.
• What is the maximum pressure rating? The Milwaukee 2475-20 M12 Compact Inflator is rated for up to 120 PSI.
• Can it be used on more than standard car tires? Yes. Milwaukee states it is designed for car, light truck, and compact equipment tires, and it also includes accessories for other inflation tasks.
• Does it stop automatically at the selected pressure? Yes. TrueFill auto shut-off is designed to shut the inflator off at the desired PSI and help prevent overfill.