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:
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.
UNDERHOOD™ AIR COMPRESSOR
Oil-injected rotary screw; up to 40 CFM* @ 100 psi;
100% duty cycle; up to 150 psi
(Waste Heat Air Separation Package)
An integrated cooler/tank that both cools and separates the air/oil mixture
Easy to read hour meter, high idle adjustment;
On/off controls; easy to read
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)
Two-speed operation; digital throttle control connects to OBD2 CAN bus connector**, automatically modulates engine RPM depending on air usage; high idle adjustment
Air Receiver Tank (recommended, not included)
Minimum 6-Gallon Air Receiver Tank – Recommended for best performance.
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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