The UNDERHOOD™ air compressor is the best choice for customers who need to save cargo space, reduce vehicle GVW, and minimize maintenance requirements. Working closely with leading manufacturers, VMAC engineers mounting kits for the easiest possible installation and ensures that mounting kits do not affect OEM warranties. Mounting kits are available for the most popular work trucks and commercial vans.

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Underhood 40 Air Compressor
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Underhood 70 Air Compressor
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VMAC Underhood 150 Air Compressor
Description N/A The UNDERHOOD™ 40 rotary screw air compressor is the best solution for service trucks and operators who use small air tools for light duty applications. The UNDERHOOD™ 40 is the lightest weight mobile air compressor available. This compact lightweight, and powerful air compressor mounts in the engine compartment of the truck, with engineered applications for Ford, GMC/Chevrolet, and RAM. N/A

UNDERHOOD™ 70 air compressors use patented rotary screw technology designed to maintain 100% of the required tool CFM so operators don’t have to wait for their air compressor to fill an air receiver tank. This maximizes air tool performance and eliminates downtime.

 		N/A UNDERHOOD™ 150 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 of materials to the jobsite, make only one trip to the jobsite, or reduce the number of trucks you need on the jobsite.
Height with Oil Filter N/A 17.5 in N/A N/A
Width with Oil Filter N/A 8 in N/A N/A
Length with Oil Filter N/A 19.75 in N/A N/A
Duty Cycle N/A 100 %
Compressor Type N/A Belt-Driven VMAC Oil-Injected Rotary Screw N/A Rotary Screw N/A
Rated Air Capacity at 100 psi (150 psi Maximum) N/A 40 cfm N/A 70 cfm N/A 140 cfm
Approximate Weight (Wet) N/A 62 lb N/A 150 lb N/A 200 lb
WHASP Tank N/A Combined air/oil cooler and air/oil separator tank N/A N/A
Bracket N/A Application Engineered Easy Installation Mounts in OEM Optional Secondary Alternator Position N/A N/A
Throttle Control N/A Two-speed Operation; Automatically modulates engine RPM depending on air usage; adjustable

 		N/A Variable speed; adjusts truck engine speed automatically to match air demand N/A Variable speed; adjusts truck engine truck speed automatically to match air demand
Control System N/A
Interface Panel N/A Easy to Read Hour Meter On/Off Controls with Indicator Light N/A N/A
Safety Features N/A Electro-magnetic clutch
Compressor thermal protection circuit
Automatic rapid blow-down vavle on tank
200 psi air pressure relief valve 		N/A LCD Display
Service notifications 
Error Messages
System temperature  		N/A LCD Display
Service notifications
Error messages
System temperature 
Why Choose UNDERHOOD™ 40? N/A Minimum 6-Gallon air receiver tank; recommmended for best performance.

Call for information on below freezing applications 		N/A N/A
Note N/A Why Choose UNDERHOOD™40?
  • Do you require compressed air to run your air tools?
  • Is space at a premium and you can't afford to lose valuable room?
  • Are you concerned with carrying fuel for a gas-powered compressor?
  • Have you had to reduce what you can carry due to payload concerns?
  • Is your productivity affected by using compressors that don’t run at 100% duty cycle?
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Warranty N/A N/A Two years on all major components; VMAC air-ends are covered by VMAC's Lifetime Limited Warranty  Years on all major components N/A