NISSAN 21558-5BC0B Air

( Manufacturer Part Number: 21558-5BC0B ), ( Part Type: Guide ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Year: 2015 2016 2017 2018 ), ( Parts Included: Only Part Reference 11 On The Diagram Is Included ), ( Replaces Part Number: 215585bc0a )

Review NISSAN Genuine Air Guide fits MURANO 2015–2018

The **Nissan 21558-5BC0B Air Suspension Control Unit** is a high-performance, electronically managed component designed to enhance the driving experience by dynamically adjusting the vehicle s ride height, damping, and overall suspension behavior. This advanced control module is integral to Nissan s air suspension systems, which are commonly found in luxury and performance-oriented models such as the Nissan GT-R, Armada, and Murano. Engineered with precision, the 21558-5BC0B unit interfaces seamlessly with the vehicle s air springs, compressors, and solenoid valves to provide real-time adjustments based on driver inputs, road conditions, and vehicle stability requirements. Its robust construction ensures durability under demanding conditions, while its sophisticated internal circuitry allows for precise control over air pressure, enabling features like load-leveling, adaptive damping, and even off-road mode adjustments. Whether navigating tight city streets, cruising on highways, or tackling rough terrain, this control unit optimizes both comfort and handling by maintaining optimal tire contact with the road surface. For enthusiasts seeking to upgrade or repair their Nissan s air suspension system, this component is a critical replacement part that ensures smooth operation, extended suspension life, and enhanced vehicle performance. Its compatibility with Nissan s diagnostic systems also allows for easy integration with existing vehicle electronics, making it a reliable choice for both professional mechanics and DIY automotive enthusiasts.

**Pros and Cons of Buying a Nissan 21558-5BC0B Air Suspension Kit**

The **Nissan 21558-5BC0B** is an air suspension kit designed for certain Nissan models, primarily the **Altima (V35), Maxima (V36), and Rogue (Yaris-based)**, as well as some older models like the **Frontier and Pathfinder**. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **Improved Ride Comfort**

The air suspension system allows for adjustable firmness, providing a smoother ride over rough roads compared to traditional coil springs. It can be set to a softer setting for comfort or a firmer setting for better handling.

2. **Better Handling and Stability**

Air suspension can improve weight distribution, reducing body roll during cornering and enhancing overall stability. This is particularly useful for vehicles that carry heavy loads or have a higher center of gravity.

3. **Adaptability to Different Loads**

Unlike fixed suspension systems, air suspension can automatically adjust to the weight of passengers, cargo, or towing loads. This helps maintain optimal ride height and handling, reducing strain on other suspension components.

4. **Reduced Wear on Other Suspension Parts**

By absorbing more impact and distributing weight more evenly, air suspension can reduce stress on shocks, struts, and bushings, potentially extending their lifespan.

5. **Customization and Adjustability**

Many air suspension systems allow for manual or automatic height adjustment, which can be useful for driving in different conditions (e.g., lowering for better aerodynamics or raising for off-road capability).

6. **Potential for Improved Resale Value**

For high-end or performance-oriented Nissan models, aftermarket air suspension can be seen as a premium feature, potentially increasing resale value if installed properly.

7. **Compatibility with Nissan s Factory Air Suspension Systems**

The **21558-5BC0B** is designed to integrate with Nissan s original air suspension components, such as the compressor, valves, and control modules, making installation and maintenance more straightforward for owners who already have these parts.

8. **Reduced Body Sag Over Time**

Traditional coil springs lose firmness over time, causing the vehicle to sit lower and handle less predictably. Air suspension can compensate for this sag, maintaining a consistent ride height.

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### **Cons**

1. **High Upfront Cost**

Air suspension kits are significantly more expensive than traditional coil springs or shocks. The **21558-5BC0B** itself is not cheap, and installation may require additional components like a compressor, control module, and wiring harness, adding to the total cost.

2. **Complex Installation and Maintenance**

Installing air suspension requires mechanical skill and may involve modifications to the vehicle s frame or suspension mounts. Maintenance is also more involved, as air springs, compressors, and valves can fail and require replacement or repair.

3. **Potential for Air Leaks**

Air suspension systems rely on sealed components, and over time, air springs or hoses can develop leaks. This can lead to a gradual loss of pressure, requiring frequent top-ups or repairs.

4. **Power and Electrical Dependence**

Most air suspension systems require electrical power to operate the compressor and valves. If the system fails electrically (e.g., due to a dead battery or wiring issue), the suspension may collapse, leaving the vehicle unstable or difficult to drive.

5. **Noise and Vibration**

Some air suspension systems can introduce new noises, such as hissing (from air leaks) or clunking (from valve operation). Additionally, air springs can vibrate more than traditional springs, leading to cabin noise.

6. **Limited Availability of Parts**

While Nissan s air suspension parts are available, aftermarket components may be harder to find or more expensive than OEM parts. This can make repairs or upgrades more difficult and costly.

7. **Potential for Overcomplication**

For most drivers, traditional suspension systems are reliable and low-maintenance. Air suspension adds complexity that may not be justified unless the vehicle is used for heavy towing, off-roading, or high-performance driving.

8. **Compatibility Issues**

The **21558-5BC0B** is specific to certain Nissan models. Installing it on an incompatible vehicle could lead to poor fitment, handling issues, or even damage to the suspension or chassis.

9. **Risk of Voiding Warranty**

If the vehicle is still under manufacturer warranty, installing aftermarket air suspension could void coverage, especially if it involves modifications to the suspension or electrical system.

10. **Environmental Sensitivity**

Air suspension systems can be sensitive to temperature and humidity changes, which may affect air pressure and ride quality in extreme conditions.

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### **Conclusion**

The **Nissan 21558-5BC0B air suspension kit** is a high-end upgrade that offers significant benefits in terms of ride comfort, handling, and adaptability particularly for vehicles that carry heavy loads or are used for performance driving. However, it comes with substantial costs, both in terms of initial investment and long-term maintenance. Whether this kit is worth it depends on your priorities:

- **If you prioritize comfort, stability, and adaptability** (e.g., for towing, luxury driving, or off-road use), the benefits may outweigh the drawbacks.

- **If you value simplicity, reliability, and lower costs**, a traditional suspension upgrade (e.g., coilovers or high-quality shocks) may be a more practical choice.

For most everyday drivers, the added complexity and expense of air suspension may not be justified. However, for enthusiasts or those who frequently drive in demanding conditions, it can be a worthwhile investment.

---

### **Recommendation**

- Do you tow frequently, carry heavy loads, or drive on rough roads? If so, air suspension could be beneficial.

- Are you comfortable with higher maintenance and potential repair costs?

- If you re on a tight budget, consider alternative suspension upgrades like **coilovers** or **adjustable shocks**, which offer some customization without the complexity of air suspension.

- If you re already using Nissan s factory air suspension system, the **21558-5BC0B** is a solid choice for compatibility and performance.

- If you proceed with air suspension, have it installed by a professional who specializes in suspension work. Proper installation is critical to avoid handling issues or damage.

- Ensure you have access to spare parts and maintenance resources in your area.

- If possible, test-drive a vehicle with air suspension to see if the ride and handling improvements justify the cost for your driving habits.

- If you like the idea of adjustable suspension but want something simpler, consider **electronic suspension systems** (like those from **Bilstein** or **KW**) that offer some adjustability without the full complexity of air suspension.

The **Nissan 21558-5BC0B air suspension kit** is a premium upgrade best suited for those who demand the highest level of ride comfort, stability, and adaptability from their vehicle. For most drivers, it may be overkill, but for the right user, it can transform the driving experience. Weigh the pros and cons carefully against your budget, driving habits, and long-term maintenance preferences before making a decision.

Details:

Right RH refers to the passengers side. In stock orders ship within 24 hours. Electrical parts are not returnable. Parts must be resalable and in the original packaging.

Left LH refers to the drivers side. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

part #: 215585bc0b prices

• $82.76-$84.09

specifications ocoosys:

• for models: Murano
• for makes: Nissan
• for years: 2015-2018
• mpn: 21558-5bc0b
• part type: Guide
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• year: 2015 2016 2017 2018
• parts included: Only Part Reference 11 On The Diagram Is Included
• replaces part number: 215585bc0a

payments ocoosys:

• other
• wallet: Paypal
• credit card: Mastercard

general ocoosys:

• Car Truck Parts Accessories > Engine Cooling Components > Other Engine Cooling Components
• condition: New

seller ocoosys:

• # reviews: 212
• rating: 100.0%
• city: Gulfport, Mississippi

shipping ocoosys:

• type: Fixed
• service: Standard
• cost: $9.99
• class: Standard
• transit: 3-8 Days

returns ocoosys:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

offer ocoosys:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• started: February 11, 2026
• quantity: 4

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