fits year: 2015–2019.

( Brand: Motorcraft ), ( Manufacturer Part Number: TB-34 ), ( Part Type: Fuel Throttle ), ( Make: Ford ), ( Year: 2015 2016 2017 2018 2019 ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included )
The **Motorcraft TB-34 Fuel Injection Throttle Body** is a high-performance, precision-engineered component designed to deliver exceptional throttle response, fuel efficiency, and reliability for modern Ford vehicles equipped with port fuel injection systems. Built to Ford s exacting standards, this throttle body is crafted from durable materials, including a robust aluminum housing and a high-quality plastic throttle plate assembly, ensuring long-lasting performance even under demanding driving conditions. The TB-34 features a **dual-bore design**, optimizing airflow for smoother acceleration and better engine breathing, which is particularly beneficial for high-performance applications, turbocharged engines, or vehicles modified for increased power output. Its **electronic throttle control (ETC) system** integrates seamlessly with the vehicle s engine management unit (ECU), providing precise throttle response and adaptability to varying driving conditions, from city commuting to spirited highway cruising.
One of the standout features of the Motorcraft TB-34 is its **self-diagnostic capabilities**, which include built-in sensors to monitor throttle position, airflow, and potential issues such as clogs or malfunctions. This advanced functionality helps maintain optimal engine performance while reducing the likelihood of unexpected failures. The throttle body is also designed with **easy-access maintenance** in mind, featuring a removable air filter housing and a straightforward cleaning process to prevent carbon buildup and ensure consistent airflow. Whether installed in a stock vehicle for improved reliability or in a modified engine for enhanced performance, the TB-34 delivers a balance of durability, efficiency, and responsiveness that meets Ford s stringent quality benchmarks.
For enthusiasts and mechanics alike, the Motorcraft TB-34 represents a reliable upgrade or replacement option that aligns with Ford s commitment to performance and longevity. Its compatibility with a wide range of Ford applications including select models from the Mustang, F-Series, Explorer, and more makes it a versatile choice for both daily drivers and performance-focused vehicles. With its seamless integration into the vehicle s fuel injection system, the TB-34 ensures consistent fuel delivery, reduced emissions, and a refined driving experience, making it an essential component for maintaining or upgrading an engine s performance.
### **Pros and Cons of Buying a Motorcraft TB-34 Fuel Injection Throttle Body**
#### **Pros:**The Motorcraft TB-34 is a high-quality throttle body designed for Ford engines, particularly those in the 4.6L and 5.4L Modular (EcoBoost) and 5.0L Triton (Coyote) platforms. Here are its key advantages:
1. **OEM Quality and Reliability**
The TB-34 is a genuine Ford part, meaning it meets the same manufacturing standards as the original equipment installed in new vehicles. This ensures better durability, compatibility, and performance compared to aftermarket alternatives that may cut corners on materials or fit.
2. **Precision Engineering for Ford Engines**
It is specifically engineered to work seamlessly with Ford s fuel-injected engines, including those with direct injection (like EcoBoost) and port injection systems. The design accounts for Ford s fuel delivery systems, throttle response, and emissions requirements, reducing the risk of compatibility issues.
3. **Durability and Longevity**
Motorcraft parts are built to last, often exceeding the lifespan of aftermarket components, especially in high-performance or daily-driven applications. The TB-34 is constructed with materials that resist wear, corrosion, and heat, which is critical for throttle bodies that operate under high stress.
4. **Compatibility with Ford Performance Parts**
Since it is an OEM part, the TB-34 integrates well with other Ford performance components, such as intake manifolds, throttle position sensors (TPS), and fuel injectors. This makes it a straightforward choice for builds involving stock or upgraded Ford parts.
5. **Warranty Coverage**
Motorcraft parts typically come with a warranty (often 12 24 months), providing peace of mind against defects. Aftermarket throttle bodies may not offer the same level of protection, leaving you vulnerable to premature failure without recourse.
6. **Ease of Installation**
The TB-34 is designed to fit directly into Ford s engine bay without extensive modifications. It includes all necessary gaskets, mounts, and connectors, simplifying the installation process compared to some aftermarket alternatives that may require additional adapters or custom work.
7. **Emissions Compliance**
For vehicles that require emissions testing (e.g., California or other strict regions), the TB-34 adheres to Ford s emissions standards, reducing the risk of failing inspections due to throttle body-related issues.
8. **Support and Availability**
As an OEM part, the TB-34 is widely available through Ford dealerships, online retailers, and automotive parts stores. This ensures easy replacement if needed and access to genuine replacement parts for related components (e.g., TPS, throttle cables).
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#### **Cons:** While the Motorcraft TB-34 is a strong choice, it is not without drawbacks:1. **Higher Cost Compared to Aftermarket Options**
The TB-34 is more expensive than many aftermarket throttle bodies. For example, a genuine Motorcraft part may cost $200 $400, whereas aftermarket alternatives (e.g., from Edelbrock, Holley, or Walbro) can range from $50 $150. This can be a significant investment, especially for budget-conscious builders or those replacing a throttle body due to failure rather than performance upgrades.
2. **Limited Customization**
The TB-34 is a stock or lightly modified part, meaning it lacks the customization options available with aftermarket throttle bodies. Aftermarket units often offer adjustable throttle plates, larger bores, or performance-focused features (e.g., improved airflow or better throttle response). If you re looking to significantly enhance airflow or tuning flexibility, the TB-34 may not be the best choice.
3. **Potential for Overkill in Stock or Mild Builds**
If you re running a stock or mildly modified engine (e.g., stock fueling, no forced induction), the TB-34 may offer no meaningful performance benefits over a high-quality aftermarket throttle body. In such cases, the extra cost may not be justified unless you prioritize OEM reliability and warranty coverage.
4. **Weight**
The TB-34 is heavier than some aftermarket throttle bodies, which can slightly reduce engine responsiveness, especially in high-revving or performance-oriented applications. Aftermarket units are often lighter and designed for better throttle response.
5. **Limited Availability for Older or Discontinued Models**
While the TB-34 is widely available for newer Ford platforms (e.g., EcoBoost, Coyote), older or discontinued models may have limited stock or require special ordering. Aftermarket options might be more readily available for legacy applications.
6. **Potential for Stock Restrictions in Performance Applications**
In high-performance builds (e.g., forced induction, aggressive tuning), the TB-34 s stock design may become a bottleneck, limiting airflow and requiring additional modifications (e.g., a larger aftermarket throttle body) to prevent fueling or tuning issues.
7. **Installation Complexity for Non-Mechanics**
While the TB-34 is designed for easy installation, replacing a throttle body can be a labor-intensive process, especially if it requires removing the intake manifold, fuel rail, or other components. Those without mechanical experience may find the job challenging and may need to pay for professional installation, adding to the cost.
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### **Conclusion and Recommendation**
The **Motorcraft TB-34 is an excellent choice** for those prioritizing **reliability, OEM compatibility, and warranty coverage**, particularly in applications where stock or near-stock performance is sufficient. It is ideal for:
- **Stock or mildly modified Ford engines** (e.g., EcoBoost, Coyote, Modular) where OEM parts are desired.
- **Builds where emissions compliance is critical** (e.g., California vehicles).
- **Owners who value Ford s engineering standards** and want to avoid potential issues with aftermarket parts.
- **Those who plan to use the throttle body long-term** and want to minimize future replacement risks.
However, if you are **building a high-performance engine** (e.g., forced induction, aggressive tuning, or significant airflow upgrades), an **aftermarket throttle body** (e.g., Edelbrock TBC, Holley, or Walbro) may offer better performance, customization, and cost savings. Aftermarket units are also preferable for **legacy or discontinued models** where OEM parts are scarce.
#### **Final Recommendation:** - **Buy the Motorcraft TB-34 if:**- You want a **reliable, OEM-quality part** for a stock or mildly modified Ford engine.
- You prioritize **warranty coverage** and **long-term durability**.
- You are **not pushing the engine to extreme performance levels** (e.g., no forced induction or aggressive tuning).
- You need **emissions compliance** or are working on a vehicle that requires OEM parts for legal or warranty reasons.
- **Consider an aftermarket throttle body if:**- You are **building a high-performance engine** and need better airflow or customization.
- You want to **save money** without sacrificing quality (many aftermarket options are just as durable).
- You are working on an **older or discontinued Ford model** where OEM parts are difficult to find.
- You plan to **modify the throttle body** (e.g., larger bore, adjustable plates) for improved performance.
For most **daily drivers or stock-to-mildly-modified builds**, the Motorcraft TB-34 is the **safest and most practical choice**. For **performance applications**, weigh the trade-offs carefully and consider aftermarket alternatives.
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