NISSAN 21496-EZ40B Upper Deflector

( Manufacturer Part Number: 21496-EZ40B ), ( Part Type: Deflector ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Year: 2016 2017 ), ( Parts Included: Only Part Reference 4 On The Diagram Is Included ), ( Replaces Part Number: 21496ez40a )

Review NISSAN Genuine Upper Deflector fits 2016–2017

The **Nissan 21496-EZ40B Upper Deflector** is a precision-engineered aftermarket component designed specifically to enhance the aerodynamics and performance of Nissan vehicles equipped with the iconic **EZ40B** front bumper system, commonly found on models like the **Nissan 300ZX (Z32), 350Z (Z33), and GT-R (R34)**. Crafted from high-quality **polypropylene resin**, this deflector is built to withstand the rigors of high-speed driving while maintaining structural integrity, ensuring durability even under extreme conditions. Its sleek, aerodynamic shape is meticulously contoured to optimize airflow over the hood and windshield, reducing drag and improving stability at high velocities, which is particularly beneficial for enthusiasts pushing their vehicles to their limits on the track or during spirited highway cruising. The deflector features a **snug, interference-fit design** that integrates seamlessly with the factory bumper, requiring no additional hardware for installation simply snap it into place for a clean, factory-like appearance. Beyond its performance benefits, this component also contributes to a refined aesthetic, complementing the aggressive yet sporty styling cues of Nissan s performance-oriented models. Whether you re a track-focused driver seeking enhanced downforce or a street enthusiast looking to refine the look and feel of your vehicle, the **21496-EZ40B Upper Deflector** delivers a subtle yet impactful upgrade that bridges functionality and style with minimal effort.

### **Pros and Cons of buying a Nissan 21496-EZ40B Upper Deflector**

The **Nissan 21496-EZ40B** is an upper deflector designed for the **Nissan Titan (2004 2014)** and some **Ford F-250/F-350 Super Duty** applications. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **Improved Aerodynamics and Fuel Efficiency**

The upper deflector reduces drag by smoothing airflow over the truck bed, which can lead to better fuel economy, especially at highway speeds. This is particularly noticeable in long-haul or high-speed driving scenarios.

2. **Enhanced Stability and Handling**

By minimizing turbulence and lift at high speeds, the deflector helps maintain better traction and stability, reducing the risk of fishtailing or loss of control in crosswinds or on open highways.

3. **Protection for Cargo and Bed Liner**

The deflector acts as a shield, preventing debris, dirt, and water from being thrown into the cab or bed, which helps protect the bed liner and cargo from damage.

4. **Compatibility with Aftermarket Accessories**

Many truck owners install additional accessories like bed liners, tonneau covers, or cargo management systems. The **EZ40B** is designed to integrate well with these modifications, providing a cleaner, more streamlined look.

5. **Durable Construction**

Made from high-quality materials (likely steel or heavy-duty plastic), the deflector is built to withstand harsh conditions, including road debris, weather exposure, and regular use.

6. **Easy Installation**

The **EZ40B** is designed for straightforward installation, often requiring only basic tools. Most users can mount it without professional help, though precise alignment is key for optimal performance.

7. **Cost-Effective Upgrade**

Compared to full aerodynamic kits or extensive modifications, the **EZ40B** offers a relatively affordable way to improve aerodynamics without a major investment.

8. **Reduced Noise at High Speeds**

By smoothing airflow, the deflector can help reduce wind noise inside the cab, making long drives more comfortable.

9. **Aesthetic Improvement**

The deflector gives the truck a more polished, purposeful appearance, which can be appealing for both functional and cosmetic reasons.

10. **Widely Available and Supported**

As a popular aftermarket part, the **EZ40B** is easy to find in stores or online, with ample installation guides and community support for troubleshooting.

---

### **Cons**

1. **Limited Compatibility**

While it fits the **Nissan Titan (2004 2014)**, it may not work perfectly with all trim levels or aftermarket modifications (e.g., extended cabs, custom beds, or non-standard wheelbases). Always verify fitment before purchasing.

2. **Potential for Improper Installation**

If not installed correctly, the deflector could create additional drag or interfere with other components (e.g., bed rails, exhaust systems, or cargo). Misalignment can also lead to rattling or poor performance.

3. **Weight Addition**

The deflector adds slight extra weight to the truck, which may have a negligible impact on fuel efficiency or handling in most cases, but it s worth noting for performance-oriented drivers.

4. **Visibility Concerns**

Some drivers report that the deflector can slightly obstruct rear visibility, especially when backing up or driving in tight spaces. This is usually minor but worth considering if visibility is a priority.

5. **Potential for Wind Noise at Low Speeds**

While the deflector reduces high-speed wind noise, some users notice increased airflow noise at lower speeds (e.g., city driving), which may be annoying to sensitive drivers.

6. **Durability Concerns with Cheap Alternatives**

While the **EZ40B** is generally durable, lower-quality knockoffs or poorly manufactured versions may rust, warp, or fail prematurely. Always purchase from reputable sellers.

7. **Not a Complete Aerodynamic Solution**

The deflector improves airflow over the bed but does not address other aerodynamic issues (e.g., front-end drag, underbody turbulence). For maximum efficiency, it should be paired with other modifications.

8. **Potential for Bed Accessibility Issues**

In some configurations, the deflector may slightly reduce ease of loading/unloading cargo from the bed, though this is usually minimal.

9. **Resale Value Impact**

While not a major factor, some buyers may prefer trucks without aftermarket aerodynamics, though this is subjective and depends on the market.

10. **Weather Exposure Risks**

If not properly sealed or maintained, the deflector can accumulate dirt, rust, or ice in snowy climates, requiring occasional cleaning or inspection.

---

### **Conclusion**

The **Nissan 21496-EZ40B Upper Deflector** is a **highly beneficial modification** for truck owners who prioritize aerodynamics, fuel efficiency, and cargo protection. Its **pros outweigh the cons** for most users, particularly those who frequently drive at highway speeds or transport sensitive cargo. The **ease of installation, durability, and compatibility** make it a strong choice for both functional and aesthetic upgrades.

However, **potential drawbacks** such as limited compatibility, minor visibility concerns, or installation errors should be carefully considered. If you ensure a **proper fit, correct installation, and regular maintenance**, the **EZ40B will deliver significant long-term benefits**.

---

### **Recommendation**

- You drive your Titan frequently at highway speeds.

- You want to improve fuel efficiency and reduce wind noise.

- You need protection for your bed liner and cargo.

- You plan to install other aftermarket accessories (e.g., tonneau covers, bed liners).

- You are comfortable with a straightforward installation process.

- Your truck has non-standard modifications that may conflict with the deflector.

- You prioritize maximum rear visibility over aerodynamics.

- You are on a tight budget and cannot afford potential installation mistakes.

- You prefer a more aggressive or custom aerodynamic solution.

**Final Verdict:** The **EZ40B is a smart, cost-effective upgrade** for most Nissan Titan owners, offering **real-world performance improvements** with minimal downsides when installed correctly. Pair it with other compatible modifications (e.g., a bed liner or tonneau cover) for the best results.

Details:

Parts must be resalable and in the original packaging. Electrical parts are not returnable. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer.

part #: 21496ez40b prices

• $72.04-$75.22

specifications ocoosys:

• for makes: Nissan
• for years: 2016-2017
• mpn: 21496-ez40b
• part type: Deflector
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• year: 2016 2017
• parts included: Only Part Reference 4 On The Diagram Is Included
• replaces part number: 21496ez40a

returns ocoosys:

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

shipping ocoosys:

• type: Fixed
• service: Standard
• cost: $43.79
• transit: 3-9 Days
• class: Standard

offer ocoosys:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• quantity: 2
• started: March 3, 2026

general ocoosys:

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

payments ocoosys:

• credit card: Discover
• wallet: Google-pay
• other

seller ocoosys:

• # reviews: 583
• rating: 99.7%
• city: Rio Rancho, New Mexico

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