UNDERHOOD® 150 Air Compressors

The UNDERHOOD® 150 air compressor system is the best choice for fleet managers and owners with space and weight concerns on their service or utility truck.

The powerful rotary screw air compressor is ideal for operating large-size air tools like post-pounders or jackhammers. This means that it replaces large utility-mount or portable tow-behind air compressors.

UNDERHOOD 150 Logo_Red&Black

VMAC engineers truck mounting kits for the easiest possible installation. Working closely with leading truck manufacturers, VMAC ensures that mounting kits do not affect OEM warranties.

Mounting kits available for:

ford-logoRAM Logo

  • Ford F-250 to F-600 Power Stroke Diesel
  • Ford F-250 to F-600 Gas
  • RAM 3500 to 5500 Chassis Cab Cummins Turbo Diesel
Some applications are restricted to specific series and/or models. Please confirm compatible vehicles on VMAC’s Application List.

Applications – Common jobs that use the UNDERHOOD150 air compressor are:

  • Pressurizing gas lines
  • Fiber optic cable shooting
  • Sandblasting
  • Sprinkler irrigation
  • Monument engraving
  • Road repair/crack sealing
  • Utility servicing

Commonly used air tools – UNDERHOOD150 air compressors can be used for:

  • 90 lb jackhammers/pavement breakers
  • Trenchless piercing tools
  • Pneumatic saws
  • Post-pounders
  • Piercing tools
  • Rock drills
  • Air knives

UNDERHOOD® 150 Air Compressors Benefits

Free Up To 80 Cubic Feet On Your Truck Body

UNDERHOOD150 air compressors free up to 80 cubic feet on the truck deck when compared to utility mount options by positioning the air compressor in the engine compartment. No components get installed on the truck deck, which ensures a clean and professional-looking truck with more space for other equipment, tools, and materials. 

Reduce Truck GVW By Up To 1,900 lb

UNDERHOOD150 air compressors reduce truck GVW by as much as 1,900 lb. While utility mount air compressors are heavy and add significantly to truck GVW, UNDERHOOD air compressors are lightweight at only 200 lb. Choosing UNDERHOOD means you can add extra tools and equipment to your truck, carry more materials, take advantage of better fuel economy, or even downsize your truck classification.

Up To 110 CFM, 100% of The Time

UNDERHOOD150 air compressors use patented rotary screw technology designed to run at 100% duty cycle without stopping, so operators can power large pneumatic tools with the push of a button on their truck.

Avoid Frustrating Breakdowns & Maintenance Issues

UNDERHOOD150 air compressors are powerful enough to replace engine-driven utility mount or portable tow-behind air compressors. As a result, less time and money is spent fixing engine issues, and more time is spent making money on jobs.

Free Up Your Hitch

UNDERHOOD150 air compressors allow you to free up your truck hitch so it can be used for towing other equipment. By freeing up your hitch for other equipment, you can haul more materials, eliminate the need for extra trips, or reduce the number of trucks you need on the job site.

Work In Any Climate

UNDERHOOD150 air compressors are proven to work in any extreme climate, making them the air compressor of choice in arctic and desert environments. The compressor is protected in the truck's engine compartment, ensuring it starts in any climate every time.

UNDERHOOD® 150 Air Compressors Components

VMAC Air Compressor

Oil-injected rotary screw; 90-110 CFM* @ 100 psi; 100% duty cycle; up to 175 psi


Liquid-to-liquid cooler integrates into truck’s cooling system and mounts under the radiator

Control Box

LCD for on/off controls; observing system status, service reminders, displays error messages, and stores error codes

Air/Oil Separator Tank

Separates compressor oil from compressed air and mounts safely to truck’s frame rail or inboard of frame location

Throttle Control

Variable speed; digital throttle control connects to OBD2 CAN bus connector**; adjusts truck engine speed automatically to match air demand

UNDERHOOD150 Air Compressors Specifications

Air Compressor Output
  • 90 to 110 CFM* @100 psi (175 psi max)
Air Compressor Type
  • Belt-driven, 100% duty cycle, VMAC oil-injected rotary screw
Total System Weight (wet)
  • Approximately 200 lb (90 kg)
Control System
  • LCD display
  • Service notifications
  • Displays error messages and stores error codes
  • System temperature
Throttle Control
  • Variable speed; digital throttle control connects to OBD2 CAN bus connector**; adjusts truck engine speed automatically to match air demand
Safety System
  • Electro-magnetic clutch
  • Compressor over-temp sensor
  • Automatic rapid blow-down valve on tank
  • 200 psi pressure relief valve
  • Truck drive disable circuit on throttle control
  • Truck park brake safety shut-off switch on control box
  • Two years on all major components; VMAC air-ends are covered by VMAC’s Lifetime Warranty (Limited); for details, visit www.vmacair.com/warranty

*Actual maximum CFM output of the air compressor varies by vehicle application. See Application List for details.

**2019+ model year trucks only

UNDERHOOD® 150 Air Compressors Downloads


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