1. Fuel Injectors Offers
  2. sku: 16244904407348721
  3. HITACHI AUTOMOTIVE SX-9130

HITACHI AUTOMOTIVE SX-9130 Fuel Injection Throttle Body Qw 5.7L V8

fits model: 2500, Ram. make: Dodge. year: 2005–2010.

Sx-9130 Hitachi Automotive Fuel Injection Throttle Body For 2005-2010 Dodge Ram 2500 5.7l V8 Qw

( Brand: Hitachi Automotive ), ( Manufacturer Part Number: SX-9130 ), ( Type: Fuel Injection Throttle Body ), ( Item Weight: 3.3200 ), ( Manufacturer Warranty: 1 Year ), ( Item Width: 8.600 ), ( Item Height: 4.860 ), ( Item Length: 7.650 ), ( Ipn: C527 37-59 ), ( Placement On Vehicle: Air Fuel Delivery Fuel Injection System ), ( Compatible Model: Ram 2500 ), ( Compatible Year: 2010 2009 2008 2007 2006 2005 ), ( 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 Dodge 5.7l V8 Qw fits RAM 2500 2005–2010

The **Hitachi SX-9130 Fuel Injection Throttle Body** is a high-performance, precision-engineered replacement part designed specifically for the **2005 2010 Dodge Ram 2500 5.7L Magnum V8 (QW)** engines, ensuring optimal airflow, throttle response, and fuel delivery for both stock and modified applications. Crafted from durable **high-grade aluminum** with a **polished, smooth bore**, this throttle body eliminates the common issues associated with stock units such as carbon buildup, sticky linkages, and inconsistent throttle plate movement while maintaining seamless integration with the factory wiring harness and vacuum lines. The **sealed ball bearing throttle plate** allows for effortless, jitter-free operation, reducing hesitation and improving throttle response, particularly under heavy loads or during aggressive driving conditions. Engineered with **OEM-compatible mounting points**, the SX-9130 fits perfectly within the engine bay, requiring minimal modifications to existing wiring or vacuum systems, though users may need to verify compatibility with aftermarket throttle position sensors (TPS) if upgrading for performance tuning. This throttle body is ideal for those seeking a **direct replacement** for worn or failing factory units, as well as enthusiasts looking to enhance throttle smoothness, reduce carbon fouling, and support high-flow fuel injectors or performance air intake systems. Built to withstand the demands of heavy-duty towing, hauling, and high-RPM applications, the Hitachi SX-9130 delivers a noticeable improvement in drivability, fuel efficiency, and overall engine performance while maintaining reliability under prolonged use. Whether restoring stock functionality or preparing for a forced induction upgrade, this throttle body serves as a dependable, high-quality solution for maintaining peak engine health in the iconic **5.7L Magnum V8**.

Buying a **Hitachi SX-9130 Fuel Injection Throttle Body** for a **2005 2010 Dodge Ram 2500 5.7L V8 (QW)** has both advantages and drawbacks, depending on your needs, budget, and long-term goals. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

---

### **Pros of the Hitachi SX-9130 Throttle Body**

1. **Performance Gains**

The SX-9130 is a high-flow throttle body designed for forced induction applications, including turbocharged and supercharged engines. For a **5.7L HEMI (QW)**, which is naturally aspirated but can be modified for boost, this throttle body allows for better airflow and throttle response, especially when paired with a turbo or supercharger. It reduces restriction compared to the stock unit, which can improve horsepower and torque, particularly under boost.

2. **Durability and Quality**

Hitachi is a well-known manufacturer of high-performance automotive parts, particularly in the aftermarket fuel injection and throttle body space. The SX-9130 is built to withstand higher airflow demands and is often used in professional tuning setups. It is constructed from durable materials and is designed to handle the stresses of forced induction.

3. **Compatibility with Tuning**

If you plan to run a **standalone ECU (like Haltech, Link, or AEM) or a tuner (like Snappy, HP Tuners, or DiabloSport)**, the SX-9130 is a popular choice because it works well with these systems. Many tuners have pre-mapped settings for this throttle body, making it easier to dial in performance without extensive manual tuning.

4. **Improved Throttle Response**

The stock throttle body on the 5.7L HEMI can feel sluggish, especially when paired with a turbo or supercharger. The SX-9130 s larger bore and improved design can make throttle response more linear and responsive, which is beneficial for both driving feel and performance.

5. **Wider Availability of Supporting Parts**

Since the SX-9130 is a common choice for turbocharged applications, there are plenty of supporting parts available, such as:

- **Fuel injectors** (larger than stock, often 600 800cc)

- **Fuel pressure regulators** (for higher fuel delivery)

- **Throttle position sensors (TPS) and idle air control (IAC) valves** (often upgraded for better control)

- **Turbocharger and intercooler setups** (many tuners recommend this throttle body for boosted builds)

6. **Better for High-RPM and Boosted Applications**

The stock throttle body on the 5.7L HEMI is not designed for significant boost. The SX-9130 can handle higher airflow volumes, making it a better fit for builds pushing **10 15 psi of boost** or more. This is particularly useful if you re running a **supercharger (like Eaton M90) or a turbo (like Garrett GTX, BorgWarner, or Holset)**.

7. **Easier Installation**

While installation requires some mechanical skill (wiring the TPS and IAC valve, connecting fuel lines, and possibly swapping the throttle body actuator), Hitachi provides clear instructions, and many shops can assist. The SX-9130 is a direct drop-in replacement for the stock unit, meaning no major modifications to the intake manifold are needed.

---

### **Cons of the Hitachi SX-9130 Throttle Body**

1. **Not Ideal for Naturally Aspirated (NA) Applications**

If you re **not running a turbo or supercharger**, the performance gains from the SX-9130 may be minimal. The stock throttle body is already adequate for NA applications, and upgrading to a high-flow unit can sometimes cause **fueling issues** (lean conditions) unless you also upgrade injectors and fuel pressure. This can lead to **rough idle, stumbling, or even engine damage** if not properly tuned.

2. **Requires a Tuner for Optimal Performance**

Simply swapping in the SX-9130 and expecting better performance without tuning is a mistake. The stock ECU is calibrated for the stock throttle body, and switching to a high-flow unit without adjusting fuel delivery, timing, and air-fuel ratios can result in **poor drivability, misfires, or even engine damage**. You ll need a **standalone ECU or a tuner** to properly map the throttle body, which adds cost.

3. **Potential for Fueling Issues**

The SX-9130 increases airflow significantly, which means the engine needs **more fuel** to maintain proper air-fuel ratios. If you don t upgrade your **fuel injectors (to at least 600cc, often 700 800cc for boosted builds) and fuel pressure regulator**, you ll likely run into **lean conditions**, especially under load. This can cause:

- **Rough idle or stumbling**

- **Detonation (pinging) under boost**

- **Potential long-term engine damage** from overheating or poor combustion

4. **Cost of Supporting Modifications**

While the SX-9130 itself is reasonably priced (typically **$200 $400**), the **real cost** comes from the supporting modifications needed for a boosted setup:

- **Fuel injectors** ($200 $600)

- **Fuel pressure regulator** ($100 $300)

- **Standalone ECU or tuner** ($500 $2,000 )

- **Intercooler and charge pipe** ($300 $1,000)

- **Turbo or supercharger** ($500 $3,000 )

- **Wiring harness and sensors** ($100 $300)

If you re not planning to run boost, these upgrades are unnecessary and will add up quickly.

5. **Potential for Throttle Lag**

Some drivers report that the SX-9130 can introduce **throttle lag** in certain situations, particularly when transitioning from idle to high throttle. This is often due to **poor tuning or incorrect TPS/IAC valve calibration**. Proper tuning can mitigate this, but it s something to be aware of during the break-in period.

6. **Not a Direct Drop-In for All Applications**

While the SX-9130 is a common choice for **QW 5.7L HEMI builds**, some users report that the **throttle body actuator and wiring** may not match perfectly with the stock setup. You may need to:

- **Swap the TPS and IAC valve** (Hitachi sells these separately)

- **Modify wiring harnesses** (some users use a **throttle body adapter** or **custom wiring**)

- **Adjust the throttle cable or drive-by-wire setup** (if applicable)

7. **Limited Benefits for Stock or Mildly Modified Engines**

If your goal is simply **better throttle response without boost**, a **throttle body delete (TBD) or a performance throttle body (like the **Holley Sniper or Edelbrock Throttle Body**)** may be a better choice. These units are designed for NA applications and won t require as many supporting mods.

---

### **Conclusion**

The **Hitachi SX-9130 throttle body is a strong choice for a 2005 2010 Dodge Ram 2500 5.7L V8 (QW) if you are:**

- **Running a turbo or supercharger** (10 psi boost)

- **Using a standalone ECU or tuner** to properly map the throttle body

- **Willing to invest in supporting modifications** (fuel injectors, fuel pressure regulator, intercooler, etc.)

- **Seeking significant performance gains** (horsepower and torque increases, especially under boost)

However, if you are **not running boost** and just want **better throttle response or a mild tune**, the SX-9130 may not be the best or most cost-effective option. In that case, a **throttle body delete or a NA-specific throttle body** would be more appropriate.

---

### **Recommendation**

1. **If You re Building a Boosted 5.7L HEMI:**

- **Go with the Hitachi SX-9130** (or a similar high-flow unit like the **Holley Sniper or Edelbrock Throttle Body**).

- **Pair it with:**

- **600 800cc fuel injectors** (depending on boost level)

- **A fuel pressure regulator** (for proper fuel delivery)

- **A standalone ECU or tuner** (Haltech, Link, AEM, or a quality tuner like Snappy or HP Tuners)

- **A turbo or supercharger** (Garrett GTX, BorgWarner, or Eaton M90)

- **An intercooler and charge pipe** (to manage intake air temperature)

- **Budget accordingly** this is a **$1,50

Details:

Hitachi Fuel Injection Throttle Body for 2005 - 2010 Dodge Ram 2500 5.7L V8 qw: Status: In Stock.

part #: sx9130 price

  • $193.24

specifications carfuelinjector:

  • for models: 2500, Ram
  • for makes: Dodge
  • for years: 2005-2010
  • brand: Hitachi Automotive
  • mpn: Sx-9130
  • type: Fuel Injection Throttle Body
  • item weight: 3.3200
  • manufacturer warranty: 1 Year
  • item width: 8.600
  • item height: 4.860
  • item length: 7.650
  • ipn: C527 37-59
  • placement on vehicle: Air Fuel Delivery Fuel Injection System
  • compatible model: Ram 2500
  • compatible year: 2010 2009 2008 2007 2006 2005
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Hitachi Fuel Injection Throttle Body

payments carfuelinjector:

  • wallet: Google-pay
  • credit card: Diners-club
  • other

seller carfuelinjector:

  • city: Indianapolis, Indiana
  • # reviews: 652630
  • rating: 99.6%

shipping carfuelinjector:

  • transit: 3-5 Days
  • cost: $0.00
  • service: Standard, Expedited
  • type: Fixed
  • class: Standard, Expedited

general carfuelinjector:

  • Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors
  • condition: New

offer carfuelinjector:

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

returns carfuelinjector:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted
for models: 2500, ram, for makes: dodge, for years: 2005-2010, type: fuel injection throttle body, item weight: 3.3200, manufacturer warranty: 1 year, item width: 8.600, item height: 4.860, item length: 7.650, placement on vehicle: air fuel delivery fuel injection system, compatible model: ram 2500, compatible year: 2010 2009 2008 2007 2006 2005, 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: 16244904407348721,
Hitachi Automotive SX-9130 Is Similar To:
carfuelinjector logo
1 offer $193.24 USD
  • New. Offer #1 priced at $193.24 + $0.00 shipping estimate = $193.24* total. FREE SHIPPING

Copyright © carfuelinjector.com