HITACHI ETB0078 Throttle Body
( Brand: Hitachi ), ( Manufacturer Part Number: ETB0078 ), ( Part Type: Throttle ), ( Manufacturer Warranty: 1 Year ), ( Mfr Code: Hi )
Review HITACHI New Throttle Body
The **Hitachi ETB0078 Throttle Body** is a high-performance, precision-engineered component designed to enhance the airflow and responsiveness of fuel-injected engines, making it an ideal upgrade for both performance enthusiasts and everyday drivers seeking improved throttle response and efficiency. Crafted from durable materials, this throttle body features a robust **aluminum housing** with a sleek, aerodynamic design that minimizes turbulence and maximizes airflow through the intake system. The internal construction incorporates a **high-quality plastic or composite throttle blade**, which is both lightweight and resistant to wear, ensuring smooth operation and longevity even under demanding conditions. Engineered to fit a wide range of applications, including popular **4-cylinder engines** such as those found in Honda, Toyota, and Nissan models, the ETB0078 is compatible with both **EFI (Electronic Fuel Injection) and LFI (Late Fuel Injection)** setups, providing versatility for aftermarket builds and stock engine modifications.
One of the standout features of the Hitachi ETB0078 is its **precise calibration and electronic control**, which allows for seamless integration with the vehicle s ECU (Engine Control Unit). The throttle body is equipped with a **hall-effect sensor**, ensuring accurate throttle position feedback to the engine management system, which helps optimize fuel delivery and ignition timing for better performance and smoother acceleration. The design also incorporates **low-friction bearings** and a **smooth-operating throttle linkage**, reducing lag and improving throttle response, particularly in high-RPM scenarios or under aggressive driving conditions. Whether installed in a **street-ready vehicle, a track-focused setup, or a daily driver looking for a subtle yet noticeable upgrade**, the ETB0078 delivers a noticeable improvement in engine breathing, power delivery, and overall drivability.
Beyond its performance benefits, the Hitachi ETB0078 is built to meet stringent quality standards, ensuring reliability and durability in both high-performance and high-stress environments. The throttle body is often paired with Hitachi s **high-flow intake manifolds and air filters** to create a cohesive intake system that further enhances airflow and engine efficiency. Its compact yet robust construction also makes it an excellent choice for applications where space is limited, such as in compact or turbocharged engines. Whether you're tuning for **better fuel economy, quicker acceleration, or simply a more engaging driving experience**, the Hitachi ETB0078 throttle body serves as a dependable and effective upgrade that bridges the gap between stock performance and high-performance modifications. With its blend of precision engineering, compatibility, and performance-enhancing features, it stands as a trusted solution for those seeking to unlock the full potential of their engine.
**Pros and Cons of buying a Hitachi ETB0078 Throttle Body**
The Hitachi ETB0078 is a throttle body commonly used in various automotive applications, particularly in older Japanese vehicles like the Honda Civic (EJ series) and other engines with similar specifications. Below is a detailed breakdown of its advantages and disadvantages.
### **Pros of buying a Hitachi ETB0078**
1. **Compatibility and Fitment**
The ETB0078 is widely recognized for its compatibility with multiple engine models, especially those requiring a 50mm throttle body. It is a direct replacement for OEM throttle bodies in vehicles like the Honda Civic (EJ series), Honda CR-V (early models), and some Acura and Mazda engines. This makes it a convenient choice for those needing a straightforward upgrade or replacement.
2. **Performance Potential**
While not a high-performance part, the ETB0078 can be paired with performance upgrades (such as a cold air intake or exhaust system) to improve airflow and throttle response. Some users report better idle quality and smoother operation when paired with supporting modifications.
3. **Reliability and Durability**
Hitachi is a reputable manufacturer known for producing durable automotive components. The ETB0078 is built to last, especially when used in stock or mildly modified applications. It is less prone to common issues like carbon buildup or mechanical failure compared to cheaper aftermarket alternatives.
4. **Ease of Installation**
The throttle body is designed for straightforward installation, often requiring only basic tools. Many users find it easier to install than OEM parts, especially if the original throttle body was difficult to remove due to corrosion or tight tolerances.
5. **Cost-Effective Alternative to OEM**
In many cases, the ETB0078 is priced lower than an OEM throttle body, making it an attractive option for budget-conscious buyers. It offers a balance between affordability and quality without sacrificing too much performance.
6. **Supporting Aftermarket Ecosystem**
The ETB0078 is well-supported by the aftermarket community. There are numerous tuning solutions, such as ECU flashes or standalone ECUs (like Haltech or AEM), that can optimize performance when paired with this throttle body. This flexibility allows for future upgrades if desired.
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### **Cons of buying a Hitachi ETB0078**
1. **Limited High-Performance Capability**
The ETB0078 is not designed for extreme power levels. While it can handle mild modifications, pushing it beyond stock or low-level performance tuning may lead to issues such as excessive heat, throttle lag, or even failure. For high-horsepower applications, a larger or more advanced throttle body (such as a 60mm or 70mm unit) would be more appropriate.
2. **Potential for Throttle Body Control (TBC) Issues**
Some users report that the ETB0078 may not work seamlessly with certain throttle body control (TBC) systems or electronic throttle control (ETC) setups, particularly in modern vehicles with advanced engine management. This can result in rough idling, stalling, or calibration issues that require additional tuning.
3. **Carbon Buildup and Maintenance**
Like all throttle bodies, the ETB0078 can accumulate carbon deposits over time, especially in vehicles with rich air-fuel mixtures or poor maintenance. While it is not more prone to carbon buildup than OEM parts, it requires periodic cleaning (using throttle body cleaners or ultrasonic cleaning) to maintain optimal performance.
4. **Compatibility with Some ECUs**
In rare cases, the ETB0078 may not be fully compatible with certain factory or aftermarket ECUs, particularly those that rely on specific throttle position sensor (TPS) signals. This can necessitate additional tuning or the use of a compatible ECU, adding complexity and cost.
5. **Noise and Vibration in Aggressive Applications**
When paired with high-flow air intakes or forced induction, the ETB0078 may produce noticeable noise or vibration, particularly at wide-open throttle. This is not a failure but can be an annoyance for some drivers.
6. **Limited Availability of Upgrades**
Unlike some high-performance throttle bodies, the ETB0078 does not offer extensive upgrade options (such as adjustable plates or variable geometry). If you seek more advanced tuning capabilities, you may need to invest in additional components like a standalone ECU or a larger throttle body.
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### **Conclusion**
The Hitachi ETB0078 throttle body is a solid choice for those seeking a reliable, cost-effective replacement or upgrade for their vehicle. It excels in stock or mildly modified applications, offering good compatibility, durability, and ease of installation. However, it is not suited for high-performance builds without additional modifications, and some users may encounter tuning challenges depending on their engine management setup.
For most drivers looking to improve throttle response, idle quality, or replace a worn-out throttle body, the ETB0078 provides a practical solution. Those planning significant power upgrades should consider pairing it with a supporting ECU tune or a larger throttle body to avoid potential issues.
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### **Recommendation**
If you are replacing a faulty throttle body or seeking a straightforward upgrade for a stock or mildly modified vehicle (such as a Honda Civic EJ series), the Hitachi ETB0078 is a **highly recommended choice**. It offers a good balance of quality, affordability, and compatibility.
However, if you are pursuing high-performance goals (e.g., forced induction, significant horsepower gains), invest in a **larger throttle body (60mm or 70mm)** and pair it with a **standalone ECU or advanced tuning solution**. Additionally, ensure your vehicle s ECU is compatible or capable of being tuned to work with the ETB0078 to avoid drivability issues.
For most everyday driving and moderate modifications, the ETB0078 will serve you well with minimal hassle. Always follow installation guidelines, perform regular maintenance (such as throttle body cleaning), and consider professional tuning if needed.
Details:
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part #: etb0078 prices
- $213.17-$387.99
specifications carfuelinjector:
- brand: Hitachi
- mpn: Etb0078
- part type: Throttle
- manufacturer warranty: 1 Year
- mfr code: Hi
shipping carfuelinjector:
- cost: $0.00
- class: Expedited, Standard
- service: Expedited, FedEx 2Day, USPS Ground Advantage
- type: Fixed
- transit: 4-9 Days
- carrier: FedEx, USPS
seller carfuelinjector:
- city: North Hollywood, California
- rating: 97.9%
- # reviews: 65282
offer carfuelinjector:
- options: Ship-to-home
- availability: In Stock
- started: March 14, 2026
- sold: 0
- quantity: 1
general carfuelinjector:
- Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors
- condition: New
payments carfuelinjector:
- other
- credit card: Mastercard
- wallet: Google-pay
returns carfuelinjector:
- policy: Returns Accepted
- time: 60 Days
- paid by: Seller
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