FORD AM5Z-17626-B Lower Deflector

( Manufacturer Part Number: AM5Z-17626-B ), ( Part Type: Deflector ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Universal Fitment: Direct Replacement ), ( Year: 2016 2017 2018 ), ( Parts Included: Only Part Reference 15 On The Diagram Is Included )

Review FORD Genuine Lower Deflector fits FOCUS 2016–2018

The **Ford AM5Z-17626-B Lower Deflector** is a precision-engineered component designed specifically for Ford vehicles equipped with the 3.5L EcoBoost V6 engine, particularly those featuring the **Twin Scroll Turbocharger** system. This lower deflector serves as a critical part of the intake system, ensuring optimal airflow while minimizing turbulence and pressure loss during engine operation. Crafted from high-quality **polymer material**, it is engineered to withstand the demands of high-performance driving, offering durability and resistance to heat and wear. The deflector s unique design features a **smooth, aerodynamic contour** that directs intake air efficiently toward the turbocharger, enhancing turbo spool-up times and overall engine responsiveness. Its precise fitment ensures a secure seal, preventing air leaks that could compromise engine performance or fuel efficiency. Whether installed in a **Ford F-150, Mustang, Explorer, or other compatible models**, this deflector plays a vital role in maintaining the integrity of the intake manifold system, contributing to smoother power delivery and improved throttle response. For enthusiasts seeking to optimize their engine s performance or restore stock functionality, this part is an essential upgrade or replacement option, ensuring reliable operation under both daily driving and high-performance conditions.

### **Pros and Cons of buying a Ford AM5Z-17626-B Lower Deflector**

1. **Improved Fuel Efficiency** The lower deflector helps reduce drag and turbulence under the vehicle, allowing for better airflow and improved fuel economy, especially at highway speeds.

2. **Enhanced Cooling Performance** By directing airflow more efficiently around the engine bay and radiator, the deflector can help maintain optimal operating temperatures, reducing the risk of overheating.

3. **Reduced Underbody Noise** The deflector minimizes wind noise and turbulence that passes beneath the vehicle, leading to a quieter cabin during high-speed driving.

4. **Compatibility with Performance Upgrades** If you ve added a cold air intake, high-flow exhaust, or other performance modifications, the deflector can help optimize airflow for better engine performance.

5. **Durability** Ford s aftermarket parts are generally well-built, and this deflector is designed to withstand typical driving conditions without excessive wear.

6. **Easy Installation** The part is designed to fit standard Ford vehicles with minimal modifications, and installation typically requires only basic tools.

7. **Cost-Effective Upgrade** Compared to full underbody aerodynamics kits, this deflector is relatively inexpensive while still providing noticeable benefits.

1. **Limited Effectiveness at Low Speeds** The benefits of the deflector are most noticeable at highway speeds (55 mph). At lower speeds, the impact on fuel economy and noise reduction may be minimal.

2. **Potential for Increased Underbody Wear** If the deflector is not properly secured or if road debris is common, it could contribute to minor wear on the vehicle s undercarriage over time.

3. **Aesthetic Considerations** While functional, the deflector may not appeal to those who prefer a cleaner, stock underbody appearance. Some drivers find it visually intrusive.

4. **Installation Challenges on Some Models** Depending on the vehicle s underbody design, installation may require additional steps, such as removing or adjusting existing components (e.g., exhaust or splash shields).

5. **Not a Substitute for Major Aerodynamics** For significant drag reduction or high-performance applications, a full underbody aerodynamics kit (e.g., a rear diffuser or front splitter) would be more effective than just a lower deflector.

6. **Potential for Airflow Disruption** If not properly aligned, the deflector could redirect airflow in unintended ways, potentially affecting cooling or handling in extreme cases.

7. **Warranty Concerns (If Installed Incorrectly)** Improper installation could void certain manufacturer warranties or lead to issues if the deflector interferes with critical components.

---

### **Conclusion**

The **Ford AM5Z-17626-B Lower Deflector** is a practical and relatively low-cost upgrade that offers measurable benefits for fuel efficiency, cooling, and underbody noise reduction particularly at highway speeds. Its installation is straightforward, and it integrates well with many performance modifications. However, its effectiveness is speed-dependent, and it may not be as impactful for daily city driving. Additionally, while durable, it requires proper installation to avoid potential downsides like increased underbody wear or aesthetic concerns.

For drivers who prioritize efficiency, cooling, and a quieter ride at highway speeds, this deflector is a worthwhile addition. Those who prefer a stock appearance or primarily drive in urban areas may find the benefits less compelling. If you re considering aerodynamics upgrades beyond this, a full underbody kit could provide greater long-term benefits.

---

### **Recommendation**

- You frequently drive at highway speeds (55 mph) and want to improve fuel economy and reduce wind noise.

- You ve made performance modifications (e.g., cold air intake, exhaust) and need better airflow management.

- You re willing to accept a minor aesthetic compromise for functional benefits.

- You re comfortable with a relatively simple installation process.

- You primarily drive in stop-and-go traffic or urban areas where the benefits are negligible.

- You prefer a completely stock underbody appearance and dislike aftermarket additions.

- You re on a tight budget and could allocate funds to more impactful upgrades (e.g., a full aerodynamics kit).

- Your vehicle has a complex underbody design that makes installation difficult or risky.

**Final Verdict:** For most highway-focused drivers, this deflector is a **solid, cost-effective upgrade** that delivers real-world benefits without major drawbacks. However, weigh its pros and cons against your driving habits and priorities before purchasing.

Details:

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

part #: am5z17626 prices

• $21.89-$30.12

specifications ocoosys:

• for models: Focus
• for makes: Ford
• for years: 2016-2018
• mpn: Am5z-17626-b
• part type: Deflector
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• year: 2016 2017 2018
• parts included: Only Part Reference 15 On The Diagram Is Included

returns ocoosys:

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

payments ocoosys:

• other
• wallet: Paypal
• credit card: Mastercard

general ocoosys:

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

seller ocoosys:

• rating: 99.8%
• city: St. George, Utah
• # reviews: 18604

offer ocoosys:

• options: Ship-to-home
• sold: 0
• started: March 28, 2026
• availability: In Stock
• quantity: 1

shipping ocoosys:

• class: Standard, Expedited
• cost: $0.00
• service: Standard, Expedited
• type: Fixed
• transit: 5-10 Days

Ford AM5Z-17626 Is Similar To:

• -w702527-s437 W702527-s437 Ford W702527s437 Genuine Oem (35.4% similar) Don't wait order today to take advantage of the best deals...(November 3rd, 2017)
• 1875358c91 Ford Genuine Fuel Filter Housing Powerstroke (39.6% similar) Depending on the circumstances swag will either replace or credit item. Must be included and in new condition. All boxes, cartons etc. Must be in new condition and deemed ready for resale...(August 9th, 2018)
• 3c2z-6c354-aa Ford 3c2z6c354aa Genuine Oem (41% similar) Part: 3C2Z-6C354-AA prices...(January 2nd, 2018)
• 3c3z-8a193-aa Motorcraft Ford Genuine Oem Excursion Radiator Support Bracket (32.5% similar) Higher shipping and handling cost prevail. Free shipping: if an item is offered with shipping - for lower 48 USA only. All photography is for illustrative purposes only and persons depicted are model's...(April 8th, 2018)
• 3l8z-12a648-a Ford Lincoln Mercury Genuine Oem Engine Coolant Temp Sensor (36.8% similar) For any questions, comments, concerns, or suggestions, please. Part must be uninstalled and in original package. If you re looking for great service and quality original parts, ve come to the right place. Multi packs will say quantity. Shipping carrier substitutions may be made at our determination ...(November 2nd, 2018)
• 4c3z-6k775-ba Motorcraft Ford Genuine Oem Excursion Cyl Intercooler (35.2% similar) Free shipping: if an item is offered with shipping - for lower 48 USA only. Inter cooler genuine oem ford motor craft parts photos of actual part can be supplied upon request. Higher shipping and handling cost prevail. All photography is for illustrative purposes only and persons depicted are model'...(July 8th, 2018)
• 5c3z-6k769-aa Ford 5c3z6k769aa Genuine Oem (45.8% similar) ...(August 9th, 2017)
• 5c3z8b614ca Ford Genuine Oem Radiator Fan Shroud Superduty Excursion Gas Diesel (30% similar) Depending on the circumstances swag will either replace or credit item. All boxes, cartons etc. Must be included and in new condition. Must be in new condition and deemed ready for resale. Must be in new condition and deemed ready for resale...(September 12th, 2018)
• 5s4z16a238aa Ford Brand New Oem Under Hood Air Deflector Focus (36.9% similar) Manufacturer part number: 5S4Z16A238AA identified in schematic if applicable.: brand new oem under hood air deflector ford focus 5S4Z-16A238-AA: brand that is a direct factory replacement for...(September 19th, 2018)
• 6c3z-6c646-a Ford 6c3z6c646a Genuine Oem (42% similar) ...(September 9th, 2017)
• 8c3z-6k769-a Ford 8c3z6k769a Genuine Oem (44.4% similar) ...(September 9th, 2017)