After researching dozens of models, comparing manufacturer specifications, and evaluating aggregated owner feedback, we narrowed the field to the seven best truck mounted air compressors. Our evaluation focuses on CFM output at 90 PSI, duty cycle, build quality, mounting ease, and safety features. Whether you need air for tires, air tools, or lockers, this guide helps you choose the right on-board air system for your truck.
| Photo | Product | Score | Buy |
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ARB High Performance CKMTA12 On-Board Twin Air Compressor Best Overall 6.16 CFM @ 0 PSI, 2.55 CFM @ 90 PSI, 100% duty cycle at 100 PSI |
9.0 | 🛒 Check Price |
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Viair 400P Automatic Portable Compressor Best Portable Value 1.8 CFM @ 0 PSI, 0.55 CFM @ 90 PSI, 33% duty cycle at 100 PSI |
8.5 | 🛒 Check Price |
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Smittybilt 5.65 CFM Universal Air Compressor Best Budget Twin Cylinder 5.65 CFM @ 0 PSI, 2.1 CFM @ 90 PSI, 50% duty cycle at 100 PSI |
8.1 | 🛒 Check Price |
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VIAIR 450P Automatic Portable Compressor Upgraded Portable 2.4 CFM @ 0 PSI, 0.72 CFM @ 90 PSI, 33% duty cycle at 100 PSI |
8.7 | 🛒 Check Price |
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ARB Single High Performance CKMTA12 On-Board Compressor Compact Premium 3.08 CFM @ 0 PSI, 1.27 CFM @ 90 PSI, 100% duty cycle at 100 PSI |
8.8 | 🛒 Check Price |
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Puma 12V DC Air Compressor PD1006 High Volume Workhorse 6.5 CFM @ 0 PSI, 2.6 CFM @ 90 PSI, 100% duty cycle |
8.2 | 🛒 Check Price |
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ExtremeAire Magnum 12V Compressor Off-Road Specialist 5.5 CFM @ 0 PSI, 2.0 CFM @ 90 PSI, 33% duty cycle at 150 PSI |
7.8 | 🛒 Check Price |
1. ARB High Performance CKMTA12 On-Board Twin Air Compressor: Best Overall
The ARB CKMTA12 is the gold standard for truck mounted air compressors. In our evaluation of manufacturer specs and owner feedback, it consistently delivers reliable performance with a 100% duty cycle at 100 PSI, meaning it can run continuously without overheating. The twin motor design provides ample airflow for air lockers, tire inflation, and running small air tools. Build quality is exceptional, with an IP67 dust and water ingress rating that ensures longevity even in harsh environments.
However, the premium cost may not be justified if you only need occasional tire inflation. The installation requires some mechanical skill and space for the compressor and wiring. If budget is a primary concern or you have limited mounting room, consider a more compact or value-oriented option. But for serious off-roaders and those who demand maximum reliability, the ARB is hard to beat.
- Twin piston design delivers high flow and fast tire inflation
- Sealed against dust and water with IP67 rating
- Includes braided stainless steel hose and comprehensive wiring kit
Pros: Extremely reliable and proven in off-road use; Compact and easy to mount under hood or in bed
Cons: Premium price compared to similar output compressors; Installation can be time-consuming for beginners
2. Viair 400P Automatic Portable Compressor: Best Portable Value
The Viair 400P is a portable compressor that can be mounted semi-permanently or used as a portable unit. Based on owner feedback, it is one of the most popular choices for truck owners who need reliable tire inflation on the go. It features an automatic shut-off and thermal overload protection, adding safety during use. The included accessory kit with a braided hose and tire chuck makes it ready out of the box.
However, its 33% duty cycle means it must rest after inflating a few tires, and it cannot power air tools or operate air lockers. If you need continuous air or plan to run tools, look at a larger unit. But for occasional off-road trips and daily tire checks, the 400P offers great value and convenience.
- Portable design with alligator clips and accessory kit
- Automatic shut-off at preset pressure
- Thermal overload protection prevents overheating
Pros: Excellent value for the performance; Compact and easy to store in the truck cab
Cons: Not designed for continuous duty; limited to tire inflation; Duty cycle too low for air tools or lockers
3. Smittybilt 5.65 CFM Universal Air Compressor: Best Budget Twin Cylinder
The Smittybilt 5.65 CFM compressor is a budget-friendly twin cylinder option that delivers decent airflow for the price. In our comparison of specs and owner reviews, it performs well for tire inflation and can run small impact wrenches intermittently. The included mounting bracket and wiring harness simplify installation, and the automatic pressure switch adds convenience.
However, durability concerns appear in long-term owner feedback, with some units failing after a few years of heavy use. It is also louder than premium models. If you need a compressor for occasional use and want to save money, this is a solid choice. But if you plan to rely on it daily or in remote areas, investing in a more durable unit like the ARB is wise.
- Twin cylinder design for high airflow at a low price
- Includes mounting bracket and wiring harness
- Automatic pressure switch with thermal protection
Pros: Very affordable for a twin cylinder compressor; Good airflow for tire inflation and light air tools
Cons: Build quality not as robust as ARB or Viair; Some owners report noise and vibration issues
4. VIAIR 450P Automatic Portable Compressor: Upgraded Portable
The VIAIR 450P is an upgraded portable compressor that offers higher CFM than the 400P, making it suitable for larger truck tires. Based on owner feedback, it inflates 33-inch tires from 15 to 35 PSI in about 4 minutes. The included accessories are comprehensive, and the 3-year warranty provides peace of mind. The automatic shut-off and thermal protection are standard.
However, like the 400P, it is not designed for continuous duty and cannot power air tools. Its weight makes it less convenient for quick carry. If you need a portable unit for faster inflation and don’t mind the size, the 450P is a great choice. But for on-board installation with higher duty cycle, consider a dedicated mount.
- Higher output than the 400P for faster inflation
- Includes a 25' coiled hose, pressure gauge, and blow gun
- 3-year limited warranty
Pros: Faster tire inflation than smaller portables; Rugged build with a metal cylinder head
Cons: Still limited by 33% duty cycle; Heavier than the 400P at 10.5 lbs
5. ARB Single High Performance CKMTA12 On-Board Compressor: Compact Premium
The ARB single compressor is a more compact alternative to the twin, ideal for those who need a reliable on-board air source but have limited space. It still carries the same 100% duty cycle and IP67 rating, ensuring longevity. In our evaluation, it is perfect for operating air lockers and inflating tires, though slower than the twin.
However, the price is still premium for a single piston unit, and the output may disappoint if you frequently air up large tires or run tools. If you need maximum airflow or have a larger truck, the twin is better. But for space-constrained installations or dedicated locker operation, this is an excellent choice.
- Single piston version of the ARB twin, compact size
- 100% duty cycle allows continuous operation
- IP67 rated dust and water resistant
Pros: Smaller footprint fits in tight engine bays; Same reliability as the twin for lighter air needs
Cons: Lower CFM than twin; slower tire inflation; High cost per CFM compared to other single compressors
6. Puma 12V DC Air Compressor PD1006: High Volume Workhorse
The Puma PD1006 is a high-volume compressor that includes a 2.5 gallon tank, making it suitable for running impact wrenches and other air tools. In our spec comparison, it delivers the highest CFM among the compressors we evaluated. The 100% duty cycle means it can run continuously, and the tank provides a buffer for heavy tool use.
However, it is extremely heavy and large, requiring a dedicated mounting location in the truck bed or under the chassis. Some owner reviews mention reliability issues after extended use, such as check valve failures. If you need a workhorse for heavy-duty air tool operation and have the space, this is a strong contender. But for typical tire inflation and occasional tool use, a smaller unit may be more practical.
- Oil-free twin cylinder pump for high CFM
- Large 2.5 gallon air tank included
- 100% duty cycle for continuous use
Pros: Excellent airflow for running air tools; Integrated tank reduces cycling
Cons: Very heavy and bulky; requires permanent mounting; Build quality concerns reported by some owners
7. ExtremeAire Magnum 12V Compressor: Off-Road Specialist
The ExtremeAire Magnum is marketed toward off-road enthusiasts who need a compact compressor capable of high pressure. In our research, it performs well for tire inflation, especially for larger tires that require higher pressures. The included bracket simplifies mounting, and the unit is relatively compact.
However, its 33% duty cycle at 150 PSI means it cannot run continuously, and owner feedback indicates it can overheat during prolonged use in hot weather. The value is lower compared to similarly priced competitors with better duty cycles. If you only need occasional high-pressure inflation and have a limited budget, it may work. But for reliability and longer run times, other options are better.
- High pressure capability up to 150 PSI
- Designed for off-road and overlanding use
- Includes mounting bracket and hardware
Pros: Can air up tires to high pressures quickly; Compact size for its output
Cons: Duty cycle limited; requires cool-down periods; Some owners report overheating in hot climates
Frequently Asked Questions
What CFM do I need for a truck mounted air compressor?
For tire inflation, 1-2 CFM at 90 PSI is sufficient for most trucks. For air tools like impact wrenches, you need at least 2-3 CFM at 90 PSI. For air lockers, even low CFM compressors work since lockers require minimal air volume. We recommend matching the compressor’s CFM to your primary use case, keeping in mind that higher CFM often means larger and more expensive units.
Can I mount a truck air compressor myself?
Yes, many truck owners install compressors themselves. Most compressors come with mounting brackets, wiring harnesses, and instructions. Basic mechanical skills and tools are required. However, for complex installations involving air tanks or hardwiring into the vehicle’s electrical system, professional installation is recommended to avoid electrical issues or damage.
What is duty cycle and why does it matter?
Duty cycle is the percentage of time a compressor can run within a given time period (usually an hour) without overheating. For example, a 50% duty cycle at 100 PSI means it can run for 30 minutes and must rest for 30 minutes. For continuous use like airing up multiple tires or running tools, a 100% duty cycle is ideal. For occasional inflation, lower duty cycles are acceptable.
Do I need an air tank with my truck mounted compressor?
An air tank is not essential but can improve performance by reducing compressor cycling and providing a buffer for air tools. Tanks are beneficial for high-volume tools but add weight and installation complexity. For tire inflation and lockers, a tank is often unnecessary. Consider your air needs and available space before adding a tank.
How do I protect my truck mounted compressor from the elements?
Choose a compressor with a high IP rating (e.g., IP67) for dust and water resistance. Mount it in a protected location like under the hood, in a truck bed tool box, or inside the cab. Some compressors come with weather-resistant covers. Regularly check and clean air filters and electrical connections to prevent corrosion.
Our Verdict
After researching and comparing manufacturer specs, industry standards, and owner feedback, the ARB High Performance CKMTA12 Twin Compressor is our top pick for its exceptional durability, 100% duty cycle, and proven performance. For a more budget-friendly portable option, the Viair 400P offers excellent value for tire inflation. Choose based on your specific air needs and mounting preferences.
