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HITACHI AUTOMOTIVE SX-4014 Fuel Injection Throttle Body Air 2.4L L4 Jv

fits model: Hs250h. make: Lexus. year: 2010–2012.

Sx-4014 Hitachi Automotive Fuel Injection Throttle Body For 2010-2012 Lexus Hs250h 2.4l L4 Air Jv

( Brand: Hitachi Automotive ), ( Manufacturer Part Number: SX-4014 ), ( Type: Fuel Injection Throttle Body ), ( Item Weight: 2.0100 ), ( Manufacturer Warranty: 1 Year ), ( Item Width: 4.800 ), ( Item Height: 3.280 ), ( Item Length: 5.040 ), ( Ipn: C253 58-65 ), ( Placement On Vehicle: Air Fuel Delivery Fuel Injection System ), ( Compatible Year: 2012 2011 2010 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Hitachi Fuel Injection Throttle Body )

Review HITACHI AUTOMOTIVE Fuel Injection Throttle Body Lexus 2.4l L4 Air Jv fits HS250H 2010–2012

The **Hitachi SX-4014 Fuel Injection Throttle Body** is a high-performance, precision-engineered replacement part designed specifically for the **2010 2012 Lexus HS250h** with the **2.4L L4 air JV engine**, ensuring optimal fuel delivery, throttle response, and overall engine efficiency. Crafted from durable materials and built to exacting standards, this throttle body is engineered to restore or enhance the performance of your vehicle s fuel injection system, which is critical for maintaining smooth acceleration, throttle control, and fuel economy. The SX-4014 features a **sealed, corrosion-resistant design** that prevents leaks and contamination, safeguarding the internal components from debris and moisture while ensuring reliable operation under varying driving conditions. Its **precise throttle plate mechanism** allows for seamless adjustment, reducing hesitation and improving throttle response, which is particularly beneficial for drivers who demand quick, responsive acceleration. Additionally, the throttle body is compatible with modern **OBD-II systems**, ensuring seamless integration with your vehicle s engine management unit for accurate fuel metering and emissions compliance. Whether you re restoring stock performance or upgrading for enhanced driving dynamics, the Hitachi SX-4014 provides a **direct-fit, high-quality alternative** to OEM components, delivering durability, performance, and peace of mind for years of trouble-free use.

### Pros and Cons of Buying a Hitachi SX-4014 Fuel Injection Throttle Body for a 2010-2012 Lexus HS250h (2.4L L4 Air JV)

#### **Pros:**

1. **Compatibility** The Hitachi SX-4014 is a direct replacement for the stock throttle body in the 2.4L JV engine found in the Lexus HS250h. It is designed to match the engine s specifications, ensuring proper fitment and function.

2. **Improved Throttle Response** Throttle bodies from Hitachi are often praised for their smoother and more responsive operation compared to stock units. This can lead to better acceleration and a more engaging driving experience.

3. **Durability** Hitachi is a well-known manufacturer of high-quality automotive components. Their throttle bodies are typically built to last longer than OEM parts, especially if the engine is tuned or driven aggressively.

4. **Compatibility with Aftermarket Tuning** If you plan to modify your engine with a tune (e.g., a chip or ECU flash), a high-quality throttle body like the Hitachi SX-4014 can help prevent issues such as stumbling or rough idle that sometimes occur with stock throttle bodies under increased airflow demands.

5. **Ease of Installation** The Hitachi throttle body is designed for straightforward installation, often requiring only basic tools. It comes with necessary gaskets and mounting hardware, reducing the risk of leaks or improper sealing.

6. **Potential for Better Fuel Economy (Under Certain Conditions)** In some cases, a well-functioning throttle body can improve fuel efficiency by ensuring optimal airflow and throttle control, though this depends on other engine and drivetrain conditions.

7. **Warranty and Support** Hitachi offers warranties on their products, and they are generally backed by reputable sellers, providing peace of mind in case of defects.

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#### **Cons:**

1. **Cost** A Hitachi throttle body will be more expensive than an OEM replacement part. While it is an investment in performance and longevity, it may not be justified if the stock throttle body is still functioning adequately.

2. **Potential for Overkill (If Stock is Fine)** If your stock throttle body is clean, properly calibrated, and not causing any issues (e.g., rough idling, stalling, or poor response), upgrading may not provide noticeable benefits. A throttle body replacement is often only worthwhile if you re experiencing symptoms of a failing unit or planning engine modifications.

3. **Requires Proper Installation and Calibration** While the installation is relatively simple, improper handling (e.g., not cleaning the throttle plates properly or not recalibrating the throttle position sensor) can lead to drivability issues. Some Lexus models may require a reset of the throttle position sensor after replacement.

4. **Compatibility with Stock ECU Limitations** If you re not tuning the engine, the stock ECU may not fully optimize performance with a new throttle body. You might still experience slight hesitation or rough spots until the engine learns the new throttle characteristics.

5. **Risk of Counterfeit Parts** Purchasing from untrusted sellers can result in receiving a knockoff or low-quality replica. Always buy from reputable suppliers (e.g., RockAuto, Summit Racing, or authorized Hitachi dealers) to avoid this issue.

6. **Potential for Throttle Body Control (TBC) Issues** Some Lexus models with electronic throttle control (ETC) may require additional adjustments or recalibration after replacing the throttle body. This could involve using a diagnostic tool to relearn the throttle position sensor.

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### **Conclusion:**

The Hitachi SX-4014 throttle body is a solid choice for a 2010-2012 Lexus HS250h if you re experiencing throttle-related issues (e.g., rough idling, stalling, or poor response) or planning to modify your engine with a tune. It offers improved durability, better throttle response, and compatibility with aftermarket setups. However, if your stock throttle body is functioning correctly and you re not pursuing performance upgrades, the upgrade may not be necessary.

For most Lexus HS250h owners, the decision to replace the throttle body should be based on:

- **Symptoms of a failing stock unit** (e.g., erratic idle, hesitation, or failure to hold throttle position).

- **Plans for engine tuning or modifications**, which can benefit from a high-quality throttle body.

- **Budget and long-term goals** if you re investing in performance upgrades, the Hitachi is a worthwhile part.

If you re unsure whether your stock throttle body needs replacement, a diagnostic check (e.g., cleaning the throttle plates or testing for sensor issues) may be a cheaper alternative before committing to a new unit.

### **Recommendation:** - **Buy the Hitachi SX-4014 if:**

- You re experiencing throttle-related problems and want a reliable replacement.

- You re tuning your engine or planning future modifications.

- You prioritize durability and smoother throttle response.

- **Avoid replacing it if:**

- Your stock throttle body is clean, properly functioning, and not causing issues.

- You re not planning any engine modifications and don t notice performance drawbacks.

- You re on a tight budget and can address symptoms with simpler fixes (e.g., cleaning or recalibration).

For best results, pair the throttle body replacement with a thorough engine tune-up, including fresh spark plugs, air filter, and fuel system maintenance. If tuning, ensure the ECU is properly adjusted to the new throttle body characteristics.

Details:

Hitachi Fuel Injection Throttle Body for 2010 - 2012 Lexus HS250h 2.4L L4 Air jv: Status: In Stock.

part #: sx4014 price

  • $24.26

specifications carfuelinjector:

  • for models: Hs250h
  • for makes: Lexus
  • for years: 2010-2012
  • brand: Hitachi Automotive
  • mpn: Sx-4014
  • type: Fuel Injection Throttle Body
  • item weight: 2.0100
  • manufacturer warranty: 1 Year
  • item width: 4.800
  • item height: 3.280
  • item length: 5.040
  • ipn: C253 58-65
  • placement on vehicle: Air Fuel Delivery Fuel Injection System
  • compatible year: 2012 2011 2010
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Hitachi Fuel Injection Throttle Body

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  • Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors

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  • started: May 3, 2026
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  • availability: In Stock
for models: hs250h, for makes: lexus, for years: 2010-2012, type: fuel injection throttle body, item weight: 2.0100, manufacturer warranty: 1 year, item width: 4.800, item height: 3.280, item length: 5.040, placement on vehicle: air fuel delivery fuel injection system, compatible year: 2012 2011 2010, core charge: free no core charge, fitment type: direct replacement, bundle description: 1 pc genuine hitachi fuel injection throttle body,
category: auto parts > air fuel delivery > fuel injection parts > fuel injectors, sku: 16254940009682892,
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