Atlas Air Force AF14G Air Compressor

The Atlas Air Force AF14G is a gas-powered two-stage air compressor built around a Kohler CH440 14-horsepower electric-start engine, a 2-cylinder two-stage pump, and a 30-gallon horizontal steel tank made in the USA. Working pressure runs 145-175 PSI, with delivered output of 25 CFM at 90 PSI and 19 CFM at 175 PSI — enough air to drive large impact wrenches against stubborn lug nuts on a mobile service call.

Gas drive makes the AF14G a fit for service trucks, jobsite shops, and any bay without 240V service. A pneumatic throttle idles the engine down between draws and ramps it up on demand, conserving fuel and easing wear on the engine and pump. Head unloaders cut the load off the engine on every restart so the electric start fires reliably. A set of vibro-isolation pads ships with the unit to dampen pump and engine vibration on truck beds and trailer decks. The tank itself uses a finned inlet tube that reduces condensate accumulation inside the tank over a working day.

• Kohler CH440 14 HP electric-start engine — 4-cycle air-cooled single cylinder, EPA / CARB emission compliant
• 2-cylinder, 2-stage pump — staged compression reaches 175 PSI working pressure with lower per-stage heat than a single-stage equivalent
• 30-gallon horizontal steel tank, made in the USA — finned tank-inlet tube reduces water accumulation inside the tank
• Delivered air: 25 CFM at 90 PSI, 19 CFM at 175 PSI
• 3/4" NPT air outlet for high-flow tool connections
• Pneumatic throttle control — engine ramps with air demand instead of running at full throttle
• Head unloaders — engine restarts under no load for reliable electric starting
• Heavy-duty metal belt guard over the drive belt and pump pulley
• Engine charging system keeps the electric-start battery topped up during operation
• Vibro-isolation pads included to reduce vibration when mounted on a service-truck bed or trailer

1-year parts-only warranty from Atlas Automotive Equipment. Coverage is for parts; labor and freight on warranty parts are not included under this term. Confirm current warranty registration steps with the supplier when the unit ships.

How much air does the AF14G deliver?

25 CFM at 90 PSI and 19 CFM at 175 PSI. That is enough flow to keep up with a 1-inch impact gun for sustained lug-nut work, with the 30-gallon tank acting as a reserve for short high-draw events.

Is the AF14G usable from a service truck?

Yes — it is the use case the Air Force line was designed around. Gas drive removes the need for shop power, the pneumatic throttle conserves fuel between draws, and the included vibro-isolation pads reduce vibration transferred into the truck bed or trailer deck.

What size air outlet does it have?

A single 3/4" NPT outlet, sized for high-CFM tools and air-tool manifolds without bottlenecking flow.

What engine drives it?

A Kohler CH440 14 HP single-cylinder 4-cycle air-cooled gas engine with electric start, EPA / CARB compliant. It includes head unloaders so the engine restarts under no load, and a charging system to keep the start battery topped up while running.

How heavy is it for service-truck mounting?

Shipping weight is 627 lbs. Overall dimensions are 46" long × 19" wide × 37" tall. Confirm bed capacity and tie-down points against those numbers before installation.

What's the warranty?

One year, parts only, from Atlas Automotive Equipment. Labor and freight on warranty parts are not covered under this term.

Manual and technical documents available on request — contact sales@mygaragesupplies.com or call 307-381-1810.