Nitrogen tanks for shocks are essential for off-roaders, racers, and anyone running adjustable air or coilover suspension. We researched manufacturer specifications, industry safety standards, and aggregated owner feedback to compare the top models. Our evaluation focuses on capacity, pressure rating, build quality, portability, and real-world reliability. Here are seven of the best nitrogen tanks for shocks, with honest assessments of each product’s strengths and weaknesses.
| Photo | Product | Score | Buy |
|---|---|---|---|
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Power Tank Pro Series 10 lb Best Overall 10 lb CO2/N2 capacity, 3000 psi max, aluminum cylinder |
9.0 | 🛒 Check Price |
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VIAIR 90C Portable Air Compressor (with tank) Best Portable Air Compressor 1.5 gal tank, 150 psi max, 100% duty cycle |
8.5 | 🛒 Check Price |
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Nitrogen Tank 20 cu ft (Aluminum) Best Budget Pick 20 cu ft capacity, 3000 psi, aluminum construction |
8.1 | 🛒 Check Price |
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Shock Therapy Nitrogen Tank Kit Best Kit for Off-Road 2.5 lb CO2/N2 tank, adjustable regulator, hose and chuck |
8.7 | 🛒 Check Price |
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Pro Eagle 5 lb Nitrogen Tank Best Mid-Size Option 5 lb capacity, 3000 psi, aluminum with rubber base |
8.4 | 🛒 Check Price |
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ARB High Performance Air Locker System with Tank Best for Onboard Air 2.5 gal steel tank, 12V compressor, 150 psi max |
7.8 | 🛒 Check Price |
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Firestone Ride-Rite Air Spring Kit (with tank) Best for Air Springs 1.5 gal tank, 150 psi max, steel construction |
7.3 | 🛒 Check Price |
1. Power Tank Pro Series 10 lb: Best Overall
The Power Tank Pro Series 10 lb is the gold standard for nitrogen shock filling. It features a thick-walled aluminum cylinder rated to 3000 psi and includes a high-flow regulator with a precision gauge. In our evaluation of owner feedback, users consistently praise its durability and the ability to fill multiple shocks without pressure drop. The tank is DOT certified, which adds peace of mind for safety-conscious buyers.
However, the all-metal construction makes it heavier than composite alternatives, which could be a drawback for those who need to carry it long distances. If you prioritize ultimate reliability and don’t mind the weight, this is the top choice. But if you need a lighter portable option, consider a composite tank.
- High-pressure aluminum tank with DOT certification for safety
- Includes adjustable regulator with gauge for precise shock tuning
- Fills multiple shocks quickly; refillable at any paintball or welding supply
Pros: Industry-leading build quality and safety certification; Consistent pressure output even in cold conditions
Cons: Heavier than some composite tanks
2. VIAIR 90C Portable Air Compressor (with tank): Best Portable Air Compressor
The VIAIR 90C is a complete portable air system that includes a 1.5-gallon tank and a 12V compressor. While it is not a pure nitrogen tank, many off-roaders use it to fill air shocks with compressed air or nitrogen. Our research shows it is popular for its reliability and the convenience of having an onboard air source. The 100% duty cycle means you can run it continuously without overheating.
That said, the 150 psi max pressure is lower than dedicated nitrogen tanks, which typically go to 3000 psi. This means you cannot achieve the high pressures needed for some racing shocks. If you need high-pressure nitrogen, skip this. But for moderate shock tuning and general air tools, it is an excellent value.
- Compact 1.5-gallon steel tank with integrated 12V compressor
- 100% duty cycle allows continuous operation for multiple shocks
- Includes pressure switch and gauge for automatic shut-off
Pros: Great value for a complete air system; Portable and easy to mount in vehicle
Cons: Lower pressure capacity than dedicated nitrogen tanks
3. Nitrogen Tank 20 cu ft (Aluminum): Best Budget Pick
This generic aluminum nitrogen tank offers the same 3000 psi rating as premium brands at a fraction of the cost. It holds 20 cubic feet of nitrogen, enough to fill several shocks. The tank is DOT certified, meeting safety standards. Owner feedback indicates it works well with aftermarket regulators.
The biggest downside is that it does not come with a regulator, so you need to buy one separately, adding to the total cost. Additionally, the valve can be finicky with some regulators. If you are on a tight budget and already have a regulator, this is a solid choice. But if you want an all-in-one solution, look elsewhere.
- Affordable 3000 psi aluminum tank, DOT certified
- Standard CGA-580 valve compatible with most regulators
- Lightweight and compact for its capacity
Pros: Low price for a full-size nitrogen tank; DOT certified for safety
Cons: No regulator included; must purchase separately
4. Shock Therapy Nitrogen Tank Kit: Best Kit for Off-Road
The Shock Therapy Nitrogen Tank Kit is purpose-built for off-road shock tuning. It includes a 2.5 lb aluminum tank, a high-quality regulator with a gauge, a 3-foot hose, and a shock fill chuck. We researched owner reviews and found it praised for its ease of use and portability. The kit simplifies the process of adjusting shocks on the trail.
However, the 2.5 lb capacity is small. If you are filling shocks for multiple vehicles or large bypass shocks, you may run out quickly. It is best suited for individual use or small groups. For heavy-duty use, consider a larger tank.
- Complete kit with tank, regulator, hose, and shock fill chuck
- Compact 2.5 lb size ideal for trail use
- Regulator features a gauge with 1/4 turn shut-off valve
Pros: Everything needed in one box; Compact and portable for off-road trips
Cons: Small capacity may require refills for multiple rigs
5. Pro Eagle 5 lb Nitrogen Tank: Best Mid-Size Option
The Pro Eagle 5 lb Nitrogen Tank is a popular mid-size option. It is made from aluminum and features a rubber base to protect surfaces. With a 3000 psi rating, it can handle most shock applications. Owner feedback highlights its durability and the convenience of the rubber base.
On the downside, it does not include a regulator, so you will need to purchase one. Also, some users report that the valve stem is slightly recessed, making it a bit awkward to attach some regulators. If you already own a regulator and want a mid-size tank, this is a good choice. But if you prefer a complete kit, look elsewhere.
- Durable aluminum tank with rubber base protector
- Compact 5 lb size balances capacity and portability
- Accepts standard regulator and fill accessories
Pros: Good balance of size and capacity; Rubber base prevents scratches and damage
Cons: Regulator sold separately
6. ARB High Performance Air Locker System with Tank: Best for Onboard Air
The ARB High Performance Air Locker System is primarily designed for air lockers but can also be used to fill shocks. It includes a 2.5-gallon steel tank and a 12V compressor. Our research shows it is very reliable and well-supported by ARB’s warranty. The system is easy to install and use.
However, the maximum pressure of 150 psi is far below the 3000 psi that many shock tuners require. This system is only suitable for low-pressure shock adjustments. If you need high-pressure nitrogen for racing or heavy-duty shocks, this is not the right product. It is best for those who already have ARB lockers and want a simple air source for occasional shock tweaks.
- Complete onboard air system with tank and compressor
- Designed for ARB air lockers but works with shocks
- Includes pressure switch, gauge, and mounting bracket
Pros: Integrated system for locker and shock inflation; Reliable ARB quality and support
Cons: Low pressure (150 psi) limits shock tuning range
7. Firestone Ride-Rite Air Spring Kit (with tank): Best for Air Springs
The Firestone Ride-Rite Air Spring Kit is a complete system for managing air springs. It includes a 1.5-gallon steel tank, a compressor, and solenoid valves for automatic pressure control. While it can be used to fill air shocks, it is optimized for air springs. Owner feedback indicates it works well for its intended purpose.
However, the 150 psi max pressure is low, and the system is not designed for the precision needed for shock tuning. Additionally, the tank is steel and can rust over time. If you need a system primarily for air springs and occasional shock inflation, this is fine. But for dedicated shock nitrogen filling, skip it.
- Includes tank, compressor, and air lines for air springs
- Automatic pressure control with solenoid valves
- Designed for Firestone air springs but universal
Pros: Complete system for air spring management; Automatic pressure regulation
Cons: Not intended for high-pressure shock tuning
Frequently Asked Questions
Can I use a CO2 tank for nitrogen shocks?
Yes, you can use a CO2 tank for nitrogen shocks, but it is not ideal. CO2 has different pressure characteristics and can cause inconsistent damping. Most shock manufacturers recommend pure nitrogen. However, many off-roaders use CO2 successfully for trail-side adjustments. If you choose to use CO2, ensure your shocks are compatible.
What pressure do I need for nitrogen shocks?
The required pressure varies by shock and application. Typical off-road shocks run between 150-300 psi, while racing shocks may require up to 3000 psi. Always check your shock manufacturer’s specifications. A tank with a 3000 psi rating covers most needs.
Do I need a regulator for my nitrogen tank?
Yes, a regulator is essential to control the pressure output. Without a regulator, you risk over-pressurizing your shocks. Most tanks do not include a regulator, so you will need to purchase one separately. Look for a regulator with a gauge that matches your shock’s pressure range.
How long does a nitrogen tank last for shocks?
The lifespan depends on the tank size and how many shocks you fill. A 10 lb tank can fill dozens of shocks before needing a refill. For example, a 20 cu ft tank at 3000 psi can fill approximately 20-30 shocks depending on volume. Refills are available at welding supply or paintball stores.
Are aluminum or steel tanks better for nitrogen?
Aluminum tanks are lighter and resist corrosion better than steel. They are preferred for portability. Steel tanks are heavier but more durable and often cheaper. Both are safe if DOT certified. For shock work, aluminum is generally recommended due to weight savings.
Our Verdict
After researching specifications, safety standards, and owner feedback, the Power Tank Pro Series 10 lb stands out as the best overall nitrogen tank for shocks due to its high-pressure capacity, DOT certification, and reliable performance. For a budget-friendly option, the generic 20 cu ft aluminum tank offers great value if you already own a regulator. The Shock Therapy Nitrogen Tank Kit is the best complete kit for off-roaders who want portability and convenience.
