UNDERHOOD™ 40 Air Compressors – Truck Series

Overview

The UNDERHOOD™ 40 rotary screw air compressor system is the perfect solution for service trucks and operators who use small air tools for light duty applications.

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:

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 UNDERHOOD™ 40 air compressor are:

Commonly used air tools – UNDERHOOD™ 40 air compressors can be used for:

Benefits

Free up to 23 cubic feet on your truck deck

UNDERHOOD™ 40 air compressors free up to 23 cubic feet on the truck deck or cargo area because the air compressor mounts in the engine compartment. The only space required on the truck deck or cargo area is 1.7 cubic feet for a combined air/oil cooler and air/oil separator tank.

Decrease truck GVW by up to 290 lb

UNDERHOOD™ 40 air compressors reduce truck GVW by as much as 290 lb. Choosing a lightweight air compressor means you’ll be able to add more tools and equipment to your truck, carry more materials, or take advantage of better fuel economy.

Up to 40 CFM. 100% of the time

UNDERHOOD™ 40 air compressors use patented rotary screw technology designed to run at 100% duty cycle without stopping, so operators don’t have to wait for their air compressor to fill up a large air receiver tank.

Components

UNDERHOOD™ AIR COMPRESSOR

Oil-injected rotary screw; up to 40 CFM* @ 100 psi;
100% duty cycle; up to 150 psi

WHASP TANK

(Waste Heat Air Separation Package)
An integrated cooler/tank that both cools and separates the air/oil mixture

INTERFACE PANEL

Easy to read hour meter, high idle adjustment;
On/off controls; easy to read

Specifications

Air Compressor Output

Up to 40 CFM @ 100 psi (150 psi max)

Air Compressor Type

Belt-driven, 100% duty cycle, VMAC oil-injected rotary screw

Total System Weight (wet)

Approximately 62 lbs (28 kg)

Interface Panel

  • Easy to read hour meter
  • On/Off controls with indicator light

WHASP Tank

  • Combined air/oil cooler, air/oil separator tank
  • 19.75” (l) x 8.0” (w) x 17.5” (h); 44.5 cm (l) x 20.3 cm (w) x 50.2 cm (h)

Cooler

  • Integrated hydraulic / compressor oil
  • 12V or 24V fan

Throttle Control

Two-speed operation; digital throttle control connects to OBD2 CAN bus connector**, automatically modulates engine RPM depending on air usage; high idle adjustment

Safety System

  • Electro-magnetic clutch

  • Compressor thermal protection circuit
  • Automatic rapid blow-down valve on tank
  • 200 psi pressure relief valve

Air Receiver Tank (recommended, not included)

Minimum 6-Gallon Air Receiver Tank – Recommended for best performance.

Warranty

Two years on all major components; VMAC air-ends are covered by VMAC’s Lifetime Limited Warranty; 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

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Available units

Stock units