The Milwaukee 2475-21XC M12 Compact Inflator Kit is a cordless inflator built for fast, accurate tire inflation and general air fill jobs. This is a cordless inflator designed for topping off car tires, light truck tires, and compact equipment tires. Model Number: 2475-21XC. If you want something more capable than a glove-box emergency inflator but easier to carry than a full compressor, this is the lane this tool lives in.

Milwaukee rates it for 0 to 120 PSI, and the real advantage is how quickly it handles the kind of jobs most people actually run into. It can top off a car tire in under 1 minute from 28 to 35 PSI, and it fills an LT truck tire in under 4 minutes from 30 to 45 PSI. That matters when you're moving between vehicles, dealing with seasonal pressure drops, or checking equipment before heading out to the site.

The digital gauge is one of the features that makes this inflator more useful than the basic pump-and-guess setups. You get a back-lit display with current and target pressure readings, plus Milwaukee's TrueFill auto shut-off system. In plain terms, you set the pressure you want, start the tool, and it is designed to stop at the target pressure with rated gauge accuracy of +/- 3%. That saves time and cuts down on the usual overfill-then-bleed-back routine.

Milwaukee built this M12 inflator around a high-efficiency motor and pump, and they paired that with a compact body that is easier to stash in a truck, shop cabinet, or service vehicle. The tool measures about 6.5 inches long, 6.5 inches wide, and 7.5 inches high, with a tool weight listed at 3.83 lb. Anti-vibration feet help keep it planted while running, which is a small detail until you've used cheaper inflators that slide all over the floor.

For jobsite durability, the housing is described as weather and impact resistant with a reinforced cage. The included 26 inch hose gives enough reach for normal tire service and general inflation tasks, and Milwaukee includes multiple inflation accessories so you can move from standard tire valves to sports balls and other inflatables without hunting down extra parts.

Because this is part of the Milwaukee M12 battery system, it fits into an existing 12V Milwaukee cordless setup if you already own M12 tools. In this kit, you are getting the inflator, an M12 REDLITHIUM XC 4.0 battery, and an M12 charger, so it is ready to work out of the box. That makes it a solid choice for contractors, mobile techs, and homeowners who want a dedicated inflator that is faster and more accurate than low-cost portable units.

Who should buy it? This makes the most sense for drivers, service techs, general contractors, and serious DIY users who need a portable cordless tire inflator they can keep close by and trust to hit a target pressure without babysitting it. If your main use is vehicle tires, trailer tires, or compact equipment tires, the Milwaukee 2475-21XC M12 Compact Inflator Kit is aimed right at that workload.

One of the handiest M12 tools to keep in a truck

The Milwaukee 2475-21XC M12 Compact Inflator Kit makes a lot of sense for anyone who wants real tire-inflation speed without dragging out a compressor.

• Who it's for: Drivers, contractors, service techs, and homeowners who need a cordless inflator for car tires, light truck tires, and general inflation jobs.
• Why it stands out: Fast fill times, a back-lit digital gauge, and auto shut-off are the features that actually matter here, and Milwaukee got those right.
• Worth knowing: This is an inflator, not a shop compressor. It is ideal for tires and top-off work, and the included battery and charger make the kit the easy way to get started.

• What is the maximum pressure rating? The Milwaukee M12 Compact Inflator Kit is rated for 0 to 120 PSI.
• What battery system does it use? It uses the Milwaukee M12 battery platform.
• Can it inflate more than standard car tires? Yes. Milwaukee states it can inflate car, LT truck, and compact equipment tires.
• How accurate is the gauge? The listed gauge accuracy is +/- 3%.