FORD 643129 Rack Pinion Power Ele

( Manufacturer Part Number: 643129 ), ( Manufacturer Warranty: 6 Month ), ( Core Charge: 50.00 Which Is Included In The Total Price ), ( Genuine Oem: Yes ), ( Interchange Item Code: 551 ), ( Color: White ), ( Type: Rack And Pinion Assembly ), ( Partout Id: A-129199493 )

Review FORD Used Rack And Pinion Assembly Power Ele fits EXPLORER 2017

The **Ford 643129 Rack and Pinion Assembly** is a precision-engineered steering component designed exclusively for the **2017 Ford Explorer with Power Electric Assist (Power Ele)**, ensuring smooth, responsive, and accurate handling while maintaining the vehicle s sporty yet practical driving dynamics. This high-performance steering system integrates a **rack-and-pinion mechanism**, a proven design that delivers superior steering feel, reduced road noise, and enhanced maneuverability compared to traditional recirculating ball systems. The rack itself is constructed from durable **heat-treated steel**, reinforced with precision-machined teeth to withstand the constant stress of daily driving, aggressive off-roading, or frequent highway navigation. The pinion, a hardened steel gear, meshes seamlessly with the rack, converting the driver s steering wheel input into precise lateral movement of the front wheels with minimal play, ensuring a direct and engaging feedback experience.

What sets this rack and pinion assembly apart is its **OEM-level quality**, engineered to meet Ford s rigorous specifications for the **2017 Power Ele trim**, which features a more robust electric power steering system compared to earlier models. The assembly includes **sealed bearings and bushings** that reduce friction and wear, extending the lifespan of the system while maintaining optimal performance. Additionally, the rack is designed with **integrated tie rod ends** (included in the kit), eliminating the need for separate tie rod replacements, which simplifies installation and ensures proper alignment. The system is also compatible with **Ford s advanced driver-assist technologies**, such as **Traffic Alert with Brake Assist (TAB)**, as it maintains the correct steering geometry required for these safety features to function effectively.

For drivers who demand both **durability and responsiveness**, this rack and pinion assembly is an ideal upgrade or replacement part, particularly for those who frequently encounter rough terrain, deep potholes, or high-speed maneuvers. The **direct drive mechanism** reduces the need for excessive steering effort, making it easier to navigate tight parking spaces or sharp turns without sacrificing control. Furthermore, the assembly s **corrosion-resistant coatings** and **high-quality seals** help protect against moisture and debris, which is especially beneficial for vehicles exposed to harsh weather conditions or off-road environments. Whether replacing a worn-out OEM component or enhancing the steering feel for a more engaging drive, the **Ford 643129 Rack and Pinion Assembly** delivers a seamless blend of performance, reliability, and precision ensuring that every turn feels intentional and every journey is smoother.

### **Pros and Cons of Buying a Ford 643129 Rack and Pinion (2017 Explorer Power Electric) Steering System**

1. **Reliability and Durability** Ford s rack and pinion systems, especially in the 2017 Explorer, are generally well-built and designed to last under normal driving conditions. The power electric assist (Power Electric) version improves responsiveness and reduces steering effort, making it more comfortable for long drives.

2. **Compatibility with the 2017 Model** This specific part (643129) is an exact factory replacement for the 2017 Ford Explorer, ensuring a perfect fit without modification. It maintains the vehicle s original steering feel and alignment.

3. **Improved Steering Feel and Precision** The electric power assist enhances steering feedback, making it easier to maneuver in tight spaces, park, and navigate low-speed maneuvers. This is particularly useful for urban driving or drivers who prefer a more engaged steering experience.

4. **Reduced Wear on Other Steering Components** Since the electric assist reduces the mechanical load on the steering column and linkages, it can help prolong the life of related parts like the steering column, tie rods, and bushings.

5. **Modern Technology Integration** The electric power assist system integrates seamlessly with the vehicle s existing electronics, including stability control and traction management systems, improving overall safety and handling.

6. **Easier Installation (If Replacing a Faulty Unit)** If the original rack and pinion was failing (e.g., leaking fluid, excessive play, or electrical issues), replacing it with an OEM or high-quality aftermarket part like this one can restore proper function without major adjustments.

7. **Warranty Coverage (If Purchased New or Authentic)** If buying from a reputable dealer or directly from Ford, this part may come with a warranty, providing peace of mind against premature failure.

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1. **Higher Upfront Cost** Compared to basic hydraulic rack and pinion systems or aftermarket alternatives, the 643129 electric power assist unit is more expensive. Prices can range from $500 to $1,200 or more, depending on whether it s new, used, or aftermarket.

2. **Potential Electrical Issues** Electric power steering systems rely on sensors, wiring, and the vehicle s computer. If the original system had electrical gremlins (e.g., faulty steering angle sensor, wiring harness damage, or ECU glitches), the new rack may not fully resolve the problem without additional diagnostics and repairs.

3. **Complexity of Diagnosis** If the steering feels abnormal (e.g., jerky, unresponsive, or erratic), pinpointing the exact cause (rack failure, sensor failure, or wiring issues) can require professional diagnostic tools. A mechanic may need to test the steering angle sensor, power steering control module, and electrical connections.

4. **Labor-Intensive Installation** Replacing a rack and pinion, especially in an SUV like the Explorer, is labor-intensive. It typically requires removing the wheel, suspension components, and sometimes the steering column. This can add $200 $500 or more in labor costs, depending on the shop.

5. **Risk of Counterfeit Parts** If purchasing from an unknown seller (e.g., eBay, Craigslist, or untrusted online marketplaces), there s a risk of receiving a knockoff or salvaged part that doesn t meet Ford s specifications. Always verify the part s authenticity and origin.

6. **Limited Lifespan Compared to Hydraulic Systems** While electric power steering is reliable, some drivers report that the sensors or electrical components can fail over time, whereas hydraulic systems (if properly maintained) tend to last longer with fewer electronic failures.

7. **Compatibility Concerns with Modifications** If the vehicle has been modified (e.g., lifted, widened, or fitted with aftermarket suspension), the original rack and pinion may not align perfectly with the new geometry. This could lead to uneven tire wear or handling issues.

8. **Potential for Overheating or Software Glitches** In rare cases, electric power steering systems can experience software-related issues or overheating of the motor, leading to intermittent failures. This is more common in older models or those with poor maintenance histories.

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The **Ford 643129 rack and pinion (2017 Explorer Power Electric)** is a solid, high-quality replacement part that offers significant advantages in terms of steering responsiveness, durability, and integration with modern vehicle systems. It is particularly beneficial for drivers who prioritize ease of use, precision, and long-term reliability. However, the higher cost, potential electrical complexities, and the need for professional installation or diagnosis can be drawbacks, especially for budget-conscious buyers or those without access to a trusted mechanic.

If the original rack was failing (e.g., leaking, stiff, or unresponsive), this part will restore proper function and improve the driving experience. However, if the issue stems from electrical or sensor problems, simply replacing the rack may not fully resolve the issue without additional repairs.

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1. **Buy from a Trusted Source** Purchase the part from an **authorized Ford dealer, a reputable auto parts store (e.g., RockAuto, Advance Auto, or local dealership used parts lot), or a verified online seller**. Avoid unknown sources to prevent counterfeit or damaged parts.

2. **Verify the Part Number and Year** Ensure the part number (643129) matches the 2017 Ford Explorer s exact specification. Double-check the vehicle s VIN to confirm compatibility.

- Rust or corrosion (especially in snowy climates).

- Leaks or cracks in the housing.

- Excessive play or binding when tested.

- Clean electrical connectors and intact wiring harnesses.

4. **Consider Professional Installation** Unless you have mechanical experience, have the rack installed by a **certified Ford technician or a reputable auto shop**. Improper installation can lead to misalignment, premature wear, or even steering failure.

5. **Diagnose Electrical Issues First** If the steering feels erratic or unresponsive, **rule out electrical causes (e.g., steering angle sensor, power steering control module, or wiring)** before replacing the rack. A scan tool can help identify codes related to the steering system.

6. **Budget for Additional Costs** Account for **labor costs (if not DIY), potential sensor replacements, or other related repairs** (e.g., tie rod ends, bushings). A full steering system overhaul can exceed $1,000.

- Checking for leaks or unusual noises.

- Keeping the steering system clean (dirt and debris can affect sensors).

- Addressing any warning lights or steering irregularities promptly.

If you need a **direct OEM replacement** for a failing rack and pinion in your 2017 Explorer and can afford the cost, the **Ford 643129 Power Electric rack and pinion is a strong choice**. However, if the issue is electrical or you re on a tight budget, prioritize diagnosing the root cause before committing to a replacement. For most drivers, the improved steering feel and reliability justify the investment.

Details:

Parts go back into cars rather than landfill. Every part is cleaned, tested and inspected by experts. Original parts mean a perfect fit. All parts are covered by warranty.

Unless specified as Universal this is a direct fit Rack and Pinion Assembly. This part fits vehicles made in the following years 2017 ,2018.

part #: 643129 prices

• $270.00-$305.89

specifications steragebo:

• for models: Explorer
• for makes: Ford
• for years: 2017
• mpn: 643129
• manufacturer warranty: 6 Month
• core charge: 50.00 Which Is Included In The Total Price
• genuine oem: Yes
• interchange item code: 551
• color: White
• type: Rack And Pinion Assembly
• partout id: A-129199493

seller steragebo:

• rating: 99.6%
• # reviews: 1599
• city: Bakersfield, California

offer steragebo:

• started: May 21, 2026
• availability: In Stock
• options: Ship-to-home
• quantity: 1
• sold: 0

returns steragebo:

• paid by: Seller
• policy: Returns Accepted
• time: 60 Days

shipping steragebo:

• cost: $0.00
• service: UPS Ground
• class: Standard
• type: Fixed
• transit: 5-11 Days
• carrier: UPS

payments steragebo:

• other
• wallet: Paypal
• credit card: Mastercard

general steragebo:

• Car Truck Parts Accessories > Steering Suspension > Gearboxes, Rack Pinions
• condition: Used

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