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Chicago Pneumatic 400 CFM Mobile Diesel Air Compressor

Item # CPS 400 Category

Designed for demanding job sites, these compressors allow operators to run multiple hand tools and hammers at the same time for maximum efficiency. They’re also ideal for sandblasting, irrigation blow-outs and general construction applications. With noise reducing enclosures, straightforward controls and a low-maintenance design, they’re built for reliable performance day in and day out.

  • User friendly controls (with shutdowns and safeties)
  • Easy to maneuver and transport
  • Single axle trailer design
  • Low maintenance design
  • Fuel efficient design
Free Air Delivery

440/400 cfm

Effective Working Pressure

100/150 psig

Max Unloaded Pressure

175 psig

Min. Working Pressure

58 psig


1 x 1-1/2"
2 x 3/4"

Max Sound Pressure @ 23 ft

76 dB(A)

Max Ambient Temp @ Sea Level

115° F

Min. Starting Temp

With Cold Air Start Aid: -4° F
Without Cold Air Start Aid: 14° F

Oil Capacity

7.25 gal

Fuel Capacity

52 gal

Fuel Consumption @ Full Load

6.5/7.3 gal/hr

Fuel Autonomy @ Full Load

8 hr

Diesel Exhaust Fluid Cap.

5.4 gal

Engine Model

John Deere 4045

# Engine Cylinders


Engine Displacement

4.5 L

Power Output

At Normal Shaft Speed: 134 hp

Engine Full Load RPM

2400/2250 rpm

Engine Unload RPM

1500 rpm

Emission Rating

Tier 4 Final


175" L x 72" W x 74" H


4555 lbs

Chicago Pneumatic 250 CFM
Mobile Diesel Air Compressor
Spec Sheet