HITACHI AUTOMOTIVE SX-1063 Fuel Injection Throttle Body

( Brand: Hitachi Automotive ), ( Manufacturer Part Number: SX-1063 ), ( Type: Fuel Injection Throttle Body ), ( Item Weight: 3.3300 ), ( Manufacturer Warranty: 1 Year ), ( Item Width: 13.880 ), ( Item Height: 5.400 ), ( Item Length: 5.880 ), ( Ipn: C510 26-30 ), ( Placement On Vehicle: Air Fuel Delivery Fuel Injection System ), ( Compatible Model: Grand Marquis ), ( Compatible Year: 2011 2010 2009 2008 2007 ), ( 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 Mercury fits MARQUIS GRAND PT 2007–2011

The **Hitachi SX-1063 Fuel Injection Throttle Body** is a precision-engineered replacement component designed specifically for **2007 through 2011 Mercury Marquis** vehicles equipped with fuel-injected engines, ensuring optimal performance, reliability, and longevity. Crafted from high-grade materials, this throttle body is built to meet or exceed OEM specifications, delivering seamless throttle response and maintaining consistent airflow for improved engine efficiency. The SX-1063 features a robust **electronic throttle control (ETC) system**, allowing for precise modulation of airflow based on driver input, which enhances acceleration, fuel economy, and overall drivability. Its **durable stainless steel construction** resists corrosion and wear, making it ideal for both urban and highway driving conditions, while the **integrated fuel rail and injectors** ensure proper fuel delivery, reducing the risk of clogging or performance degradation over time. This throttle body is fully compatible with the Marquis s **4.6L V8 engine**, providing a direct drop-in replacement for the original equipment part, eliminating the need for extensive modifications or additional adapters. Whether addressing symptoms of a failing throttle body such as rough idling, stalling, or poor acceleration or serving as a proactive upgrade for enhanced engine performance, the Hitachi SX-1063 offers a dependable solution that restores factory-like functionality. Backed by Hitachi s reputation for quality and engineering excellence, this component is a trusted choice for mechanics and DIY enthusiasts alike, ensuring a hassle-free installation and long-term dependability in your Mercury Marquis.

**Pros and Cons of Buying a Hitachi SX-1063 Fuel Injection Throttle Body for a 2007 2011 Mercury Marquis**

The Hitachi SX-1063 throttle body is a popular aftermarket replacement for the stock throttle body found in the 2007 2011 Mercury Marquis, particularly those equipped with the 4.6L or 5.4L V8 engines. Here are the key advantages:

1. **Improved Performance and Throttle Response**

The SX-1063 is designed with a larger bore and optimized airflow characteristics compared to the stock throttle body. This allows for better throttle response, especially under aggressive driving conditions, and can help reduce hesitation or lag when accelerating. The electronic throttle control (ETC) system in these models benefits from smoother and more precise modulation.

2. **Better Fuel Economy (Under Certain Conditions)**

While fuel economy improvements are not dramatic, the throttle body s improved airflow efficiency can help optimize fuel delivery, particularly if the original unit was clogged or restricted. This can lead to slight gains in efficiency, especially in stop-and-go traffic where the engine spends more time in partial-throttle conditions.

3. **Compatibility and Ease of Installation**

The Hitachi SX-1063 is specifically designed as a direct replacement for the stock throttle body in these Mercury Marquis models. It includes all necessary wiring harnesses and mounting hardware, making installation straightforward for those with basic mechanical skills. No major modifications to the intake or wiring are typically required.

4. **Durability and Quality**

Hitachi is a well-regarded brand in the aftermarket performance parts industry, known for producing durable throttle bodies that can withstand high RPMs and aggressive driving. The SX-1063 is constructed with materials that resist warping and corrosion, which is important for long-term reliability.

5. **Potential for Tuning Flexibility**

If you plan to add performance modifications (such as a cold air intake, exhaust system, or ECU tune), the SX-1063 provides a solid foundation. Its design allows for better tuning adjustments, as the throttle body s response can be fine-tuned to match the engine s new power output.

6. **Cost-Effective Upgrade**

Compared to other performance throttle bodies, the SX-1063 is reasonably priced. It offers a significant upgrade over the stock unit without requiring a full engine rebuild or extensive modifications, making it a cost-effective way to enhance drivability.

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1. **Limited Performance Gains Without Additional Modifications**

The throttle body alone will not dramatically increase horsepower or torque. Gains in throttle response and fuel economy are modest unless paired with other performance upgrades (such as a tune, intake, or exhaust). Expect noticeable improvements in drivability and responsiveness rather than raw power.

2. **Potential for Compatibility Issues with Aftermarket Parts**

Some aftermarket performance parts, such as high-flow air intakes or exhaust systems, may require additional tuning or adjustments to work optimally with the SX-1063. If not properly calibrated, these combinations could lead to rough idling, stumbling, or even engine damage.

3. **Requires Proper Installation and Calibration**

While the installation is relatively simple, improper wiring or mounting can lead to issues such as incorrect throttle position sensor (TPS) readings or erratic idle. Some owners may need to adjust the throttle body s idle speed or recalibrate the ECU after installation to ensure smooth operation.

4. **Not a Fix for Underlying Engine Issues**

If the Mercury Marquis has other problems (such as a failing MAF sensor, vacuum leaks, or a worn-out timing chain), replacing the throttle body alone will not resolve these issues. Diagnosing and addressing these problems first is crucial for optimal performance.

5. **Potential for Throttle Lag in Aggressive Driving**

While the SX-1063 improves throttle response, some drivers report that it can still exhibit slight lag under extreme acceleration, especially if the engine is not properly tuned. This is more noticeable in high-performance applications but is generally minor for daily driving.

6. **Warranty Considerations**

If the vehicle is under warranty, replacing the throttle body with an aftermarket part may void certain coverage, depending on the manufacturer s policies. Always check with the dealership or warranty provider before proceeding.

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The Hitachi SX-1063 throttle body is a solid aftermarket upgrade for the 2007 2011 Mercury Marquis, offering improved throttle response, better drivability, and compatibility with performance modifications. It is particularly beneficial for owners looking to enhance their vehicle s daily driving experience without investing in a full engine rebuild. However, it is not a "miracle fix" and should be viewed as one part of a broader performance or maintenance strategy.

For most owners, the SX-1063 provides a noticeable improvement in how the engine reacts to throttle input, making the Marquis feel more responsive and engaging. If paired with a tune (such as from a reputable tuner like Haltech or AEM) and other complementary upgrades, the benefits can be even more pronounced.

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- You want to improve throttle response and overall drivability in your Mercury Marquis.

- You plan to add other performance modifications (intake, exhaust, tune) and want a throttle body that can handle them.

- You are comfortable with basic installation and may need to make minor adjustments (such as idle speed calibration) after installation.

- You are looking for a cost-effective upgrade that enhances daily usability without significant power gains.

- You expect dramatic power increases this is not a high-performance part.

- Your vehicle has other unresolved mechanical issues (e.g., vacuum leaks, MAF sensor problems).

- You are unwilling to invest in a tune or additional modifications to fully realize the throttle body s potential.

- Your vehicle is still under warranty, and you are concerned about voiding coverage.

For the average owner of a 2007 2011 Mercury Marquis, the Hitachi SX-1063 throttle body is a worthwhile upgrade. It strikes a balance between cost, ease of installation, and noticeable improvements in throttle feel and engine responsiveness. If you are serious about performance tuning, it serves as an excellent foundation for further modifications. For those simply looking to restore or enhance their vehicle s stock performance, it is a reliable and well-regarded choice.

Details:

Hitachi Fuel Injection Throttle Body for 2007 - 2011 Mercury Grand Marquis Pt: Status: In Stock.

part #: sx1063 prices

• $88.66-$207.91

specifications carfuelinjector:

• for models: Marquis, Grand, Pt
• for makes: Mercury
• for years: 2007-2011
• brand: Hitachi Automotive
• mpn: Sx-1063
• type: Fuel Injection Throttle Body
• item weight: 3.3300
• manufacturer warranty: 1 Year
• item width: 13.880
• item height: 5.400
• item length: 5.880
• ipn: C510 26-30
• placement on vehicle: Air Fuel Delivery Fuel Injection System
• compatible model: Grand Marquis
• compatible year: 2011 2010 2009 2008 2007
• core charge: Free No Core Charge
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Hitachi Fuel Injection Throttle Body

general carfuelinjector:

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

seller carfuelinjector:

• rating: 99.6%
• # reviews: 652682
• city: Indianapolis, Indiana

returns carfuelinjector:

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

shipping carfuelinjector:

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

payments carfuelinjector:

• other
• wallet: Google-pay
• credit card: Visa

offer carfuelinjector:

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

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