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  3. CARDONE REMAN SX-7CWH

CARDONE REMAN SX-7CWH Fuel Injection Throttle Body Ab

fits model: C126, Navigator. make: Lincoln. year: 1998–1999.

Sx-7cwh Cardone Reman Fuel Injection Throttle Body For 1998-1999 Lincoln Navigator Ab

( Brand: Cardone Reman ), ( Manufacturer Part Number: SX-7CWH ), ( Type: Fuel Injection Throttle Body ), ( Item Weight: 1.3600 ), ( Item Height: 4.630 ), ( Item Length: 9.500 ), ( Item Width: 5.500 ), ( Ipn: C126 57-47 ), ( Placement On Vehicle: Air Fuel Delivery Fuel Injection System ), ( Compatible Model: Navigator ), ( Compatible Year: 1999 1998 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Cardone Reman Fuel Injection Throttle Body )

Review CARDONE REMAN Fuel Injection Throttle Body Lincoln Ab fits NAVIGATOR C126 1998–1999

The **Cardone SX-7CWH Fuel Injection Throttle Body** is a high-performance, direct-fit replacement designed specifically for the **1998-1999 Lincoln Navigator** equipped with the **4.6L Northstar V8 engine**. Engineered to meet or exceed OEM specifications, this throttle body is crafted from durable materials to ensure long-lasting performance and reliability under demanding conditions. The unit features a **precision-machined throttle plate assembly** with a smooth, responsive action, allowing for optimal airflow and throttle response, which is critical for maintaining power and drivability in both stock and modified applications. Its **sealed fuel injection system** ensures proper fuel delivery, reducing the risk of leaks and improving engine efficiency, while the **integrated throttle position sensor (TPS)** provides accurate feedback to the engine control module (ECM), supporting precise fuel and ignition timing adjustments. Built to withstand the high temperatures and pressures associated with high-performance driving, the Cardone throttle body is compatible with **EFI (Electronic Fuel Injection) systems** and includes all necessary gaskets and mounting hardware for a hassle-free installation. Whether you're restoring a classic Navigator to its original glory or upgrading an existing system for enhanced performance, this throttle body delivers a seamless fit and dependable operation, ensuring your engine runs smoothly and efficiently for years to come.

### **Pros and Cons of Buying a Cardone SX-7CWH Fuel Injection Throttle Body for a 1998-1999 Lincoln Navigator**

#### **Pros:**

The Cardone SX-7CWH throttle body is a popular aftermarket upgrade for late-model Ford/Lincoln vehicles, including the 1998-1999 Navigator. Here are the key advantages:

1. **Improved Performance** The throttle body is designed to provide better airflow and throttle response compared to the stock unit. This can result in quicker acceleration, especially in stop-and-go traffic, and a more responsive throttle pedal.

2. **Better Fuel Economy (Under Some Conditions)** While fuel economy may not improve significantly in high-speed cruising, the throttle body s design can optimize fuel delivery in city driving, reducing unnecessary idling and improving part-throttle efficiency.

3. **Smoother Idling and Reduced Surge** Many owners report that the Cardone throttle body eliminates the "lumpy" idle and hesitation that can occur in the stock unit, particularly after cold starts or under load.

4. **Compatibility with Modifications** If you plan to add a turbocharger, supercharger, or other performance upgrades, the SX-7CWH is a solid foundation that can handle increased airflow without excessive stress.

5. **Durability and Reliability** Cardone is a well-regarded brand in the aftermarket performance industry, and this throttle body is built to last with proper maintenance. It is constructed from high-quality materials and designed to resist carbon buildup better than some stock units.

6. **Ease of Installation** The SX-7CWH is designed to be a drop-in replacement for the stock throttle body, requiring minimal modifications. Installation typically involves removing the stock unit, connecting the new throttle body to the intake and wiring harness, and calibrating the PCM (though some vehicles may require a scan tool for proper tuning).

7. **Support for Electronic Throttle Control (ETC)** The Navigator s ETC system is compatible with the SX-7CWH, allowing for precise throttle control without the need for a mechanical linkage.

8. **Positive Owner Feedback** Many owners of the 1998-1999 Navigator have reported noticeable improvements in drivability, throttle response, and overall engine performance after installing this throttle body.

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#### **Cons:** While the Cardone SX-7CWH offers significant benefits, there are some potential drawbacks to consider:

1. **Requires PCM Recalibration** Like most aftermarket throttle body upgrades, the SX-7CWH may require recalibration of the Powertrain Control Module (PCM) to ensure optimal performance. This often involves using a scan tool (such as Snap-on, Launch, or OBD-II software) to adjust idle speed, fuel delivery, and throttle response. Failure to recalibrate properly can result in poor idle, stalling, or reduced power.

2. **Potential for Increased Carbon Buildup** While the SX-7CWH is designed to resist carbon deposits better than stock units, it is not immune to buildup over time, especially in high-mileage vehicles. Regular throttle body cleaning (every 12,000 15,000 miles) is recommended to maintain performance.

3. **Cost** The SX-7CWH is not a cheap upgrade. Depending on the retailer and any additional components needed (such as a new throttle position sensor or wiring harness), the total cost can range from **$200 to $400**. This is a significant investment if you re only looking for minor improvements.

4. **Mixed Results with Stock ECU Tuning** Some owners report that the stock ECU may not fully optimize performance for the new throttle body, leading to suboptimal results unless a tune is applied. A custom tune (from a reputable tuner) can further enhance gains but adds to the cost.

5. **Potential for Throttle Lag in Aggressive Driving** While the SX-7CWH improves throttle response, some drivers report that it may still exhibit slight lag under heavy acceleration or when combined with other modifications (such as a turbo). This is more common if the PCM is not properly recalibrated.

6. **Warranty Concerns** If your Navigator is under warranty, installing an aftermarket throttle body may void certain coverage, particularly if the manufacturer considers it a "modification." Always check with your dealership before proceeding.

7. **Installation Complexity** While the SX-7CWH is a drop-in replacement, wiring and sensor connections must be handled carefully. Improper installation can lead to electrical issues, such as the PCM not recognizing the new throttle body, resulting in check engine lights and poor performance.

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### **Conclusion:**

The **Cardone SX-7CWH throttle body is a solid upgrade for a 1998-1999 Lincoln Navigator**, particularly if you re looking to improve throttle response, eliminate idle issues, and enhance overall drivability. It is a well-engineered, durable component that works well with the Navigator s ETC system and can serve as a foundation for future performance modifications.

However, the upgrade is **not a "set and forget" solution**. It requires **proper PCM recalibration** (or a tune) to unlock its full potential, and it demands **regular maintenance** (such as throttle body cleaning) to prevent carbon buildup. The cost is also a significant factor, making it more suitable for those who are serious about performance rather than casual drivers seeking minor improvements.

If you re experiencing **rough idling, hesitation, or poor throttle response** in your Navigator, the SX-7CWH is a worthwhile investment **provided you are prepared to recalibrate the PCM and maintain the component properly**. For drivers who are not comfortable with tuning or wiring adjustments, consulting a professional installer may be advisable.

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### **Recommendation:** **Buy the Cardone SX-7CWH if:**

- You want a noticeable improvement in throttle response and idle smoothness.

- You plan to add other performance modifications (turbo, supercharger, etc.).

- You are willing to invest in **PCM recalibration or a tune** to maximize benefits.

- You are prepared for **regular maintenance** (throttle body cleaning).

**Avoid it if:**

- You re on a tight budget and only want minor improvements.

- You re not comfortable with **ECU tuning or wiring adjustments**.

- Your Navigator is still under warranty, and you re concerned about voiding coverage.

- You expect dramatic power gains without additional modifications (the throttle body alone will not make a significant difference in horsepower).

**Final Verdict:** For the right owner, the **Cardone SX-7CWH is a valuable upgrade** that enhances drivability and sets the stage for future performance tuning. However, it is not a "quick fix" and requires attention to detail for the best results. If you proceed, **prioritize proper installation and tuning** to ensure optimal performance.

Details:

Cardone Reman Fuel Injection Throttle Body for 1998 - 1999 Lincoln Navigator ab: Status: In Stock.

specifications carfuelinjector:

  • for models: C126, Navigator
  • for makes: Lincoln
  • for years: 1998-1999
  • brand: Cardone Reman
  • mpn: Sx-7cwh
  • type: Fuel Injection Throttle Body
  • item weight: 1.3600
  • item height: 4.630
  • item length: 9.500
  • item width: 5.500
  • ipn: C126 57-47
  • placement on vehicle: Air Fuel Delivery Fuel Injection System
  • compatible model: Navigator
  • compatible year: 1999 1998
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Cardone Reman Fuel Injection Throttle Body

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  • started: March 29, 2026
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  • Air Fuel Delivery > Fuel Injection Parts > Fuel Injectors
for models: c126, navigator, for makes: lincoln, for years: 1998-1999, type: fuel injection throttle body, item weight: 1.3600, item height: 4.630, item length: 9.500, item width: 5.500, placement on vehicle: air fuel delivery fuel injection system, compatible model: navigator, compatible year: 1999 1998, core charge: free no core charge, fitment type: direct replacement, bundle description: 1 pc genuine cardone reman fuel injection throttle body,
category: auto parts > air fuel delivery > fuel injection parts > fuel injectors, sku: 15579294597058603,
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