GM 14039179 Power Seat Motor General

( Brand: Gm ), ( Manufacturer Part Number: 14039179 ), ( Part Type: Seat Motor ), ( Color: Black ), ( Features: Motorized Seat ), ( Placement On Vehicle: Left, Front, Driver Side )

Review GM General Motors Power Seat Motor Oem Tested fits CORVETTE C3 1978–1982

The **1978 1982 Chevrolet Corvette C3 Power Seat Motor (GM Part # 14039179)** is a meticulously engineered component designed to deliver smooth, responsive, and durable operation for the iconic L82 and L83 Corvette models from the late 1970s and early 1980s. This power seat motor, a critical element of the vehicle s driver-centric ergonomics, was crafted to integrate seamlessly with the Corvette s legendary driving experience, offering precise control over seat position, tilt, and recline with minimal effort. Built to GM s exacting standards, the motor features a robust internal design, including a high-torque DC brushless or brushed (depending on model year) electric actuator paired with a durable reduction gear system, ensuring reliable performance even under frequent use. The housing is constructed from high-strength die-cast aluminum, providing both lightweight efficiency and structural integrity, while the internal wiring harness is shielded and corrosion-resistant, designed to withstand the demanding conditions of a high-performance sports car environment. This motor is fully compatible with the Corvette s original power seat switch assembly, maintaining the vehicle s authentic functionality while offering modern reliability. Whether restoring a classic C3 to its original glory or upgrading an existing system for enhanced comfort and convenience, this power seat motor is a precision-crafted solution that embodies the perfect blend of heritage and performance engineering.

Buying a **1978-1982 Chevrolet Corvette C3 with a power seat motor (GM part #14039179)** can be an exciting project, but it comes with both advantages and challenges. Below is a detailed breakdown of the pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying This Part**

1. **Functionality and Convenience**

The power seat motor (GM #14039179) is a direct replacement for the original unit found in C3 Corvettes, ensuring proper fit and operation. It eliminates the need for manual seat adjustments, which can be tedious, especially in high-performance driving situations. The power seat system also adds a level of comfort, particularly for taller drivers or those who frequently adjust their seating position.

2. **Compatibility and Availability**

This is a widely recognized GM part, meaning it is easy to source from aftermarket suppliers, junkyards, or online marketplaces. Many restoration and performance shops carry it, reducing the risk of compatibility issues. The part is also relatively standard for its era, so finding a matching replacement is straightforward.

3. **Restoration and Customization Potential**

If you re restoring or modifying your C3, having a functional power seat motor can enhance the car s authenticity and value. It s a relatively simple component to install, and many mechanics or DIYers can handle the job with basic tools. Additionally, if you re converting a manual seat to power, this motor is a reliable choice.

4. **Durability and Longevity**

GM s power seat motors from this era were built to last, especially if maintained properly. With regular cleaning (to prevent corrosion from road grime) and occasional lubrication, the motor can function reliably for decades. Many original C3 power seat motors still work in cars from this period.

5. **Cost-Effective Replacement**

Compared to other high-performance or rare C3 parts, this motor is relatively inexpensive. Prices typically range from **$50 to $150**, depending on condition and source. This makes it a cost-effective upgrade or replacement option.

6. **Ease of Installation**

The installation process is generally straightforward, requiring only basic mechanical skills. Most C3 power seat motors are bolt-on replacements, and wiring is minimal (though you may need to check for corrosion or damaged connectors). Many aftermarket kits include wiring harnesses for easier installation.

7. **Aesthetic and Vintage Appeal**

For enthusiasts who value the original C3 experience, a functional power seat adds to the car s authenticity. It s a small but meaningful detail that enhances the driving experience, especially when paired with other period-correct upgrades.

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### **Cons of Buying This Part**

1. **Potential for Failure or Wear**

- **Motor burnout** from prolonged use or electrical overload.

- **Worn or seized gears** due to lack of lubrication.

- **Corrosion in the wiring or connectors**, which can cause intermittent operation or complete failure.

- **Leaking or dried-out switches** (if the seat switch itself is faulty).

If the motor is old or has been exposed to moisture, it may require cleaning or replacement of internal components.

2. **Electrical Reliability Issues**

- **Corroded or broken ground connections**, leading to intermittent power.

- **Faulty seat switches** (either the motor switch or the seat position switches), which can cause the motor to run continuously or not at all.

- **Voltage drops** in the electrical system, particularly if the alternator or battery is weak.

Testing the electrical system (including fuses, relays, and wiring) is essential before assuming the motor is the issue.

3. **Compatibility with Modified or Aftermarket Seats**

If you ve modified your seat (e.g., with aftermarket upholstery, different padding, or a non-OEM track bar), the power seat motor may not align properly. Some aftermarket seats require adjustments to the motor s mounting or wiring. Always verify compatibility before purchasing.

4. **Limited Aftermarket Support**

While the part itself is common, finding a **complete power seat kit** (including switches, wiring, and sometimes the seat track bar) can be hit-or-miss. Some sellers offer bundled kits, but others may require you to source additional components separately.

5. **Potential for Theft or Counterfeit Parts**

Since this is a popular part, there is a risk of purchasing a **fake or salvaged motor** that doesn t work. Always buy from reputable sellers (e.g., eBay verified, junkyard with inspection, or trusted aftermarket dealers). Avoid parts that look rusted, have missing components, or lack proper labeling.

6. **Installation Challenges in Restored Cars**

If your C3 is a **full restoration**, the power seat motor may need to be integrated into a newly upholstered seat. This requires precise measurements to ensure the motor aligns correctly with the seat track bar and doesn t interfere with the seat s movement.

7. **Reliability Depends on Overall Electrical Health**

If your C3 s electrical system is in poor condition (e.g., corroded battery terminals, weak wiring, or a failing alternator), the power seat motor may not function reliably. Addressing these issues upfront can save time and frustration.

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### **Common Issues to Check Before Purchase**

- **Motor operation**: Turn the ignition on and test the seat movement in all directions (up/down, forward/back, left/right). Listen for unusual noises (grinding, whining) or resistance.

- **Wiring and connectors**: Look for corrosion, frayed wires, or loose terminals. Clean connections with electrical contact cleaner if needed.

- **Seat switches**: Test the motor switch (usually under the dash) and the seat position switches (often under the seat cushion). Replace if they re sticky or unresponsive.

- **Seat track bar**: Ensure it s not bent or seized, as this can prevent smooth movement.

- **Battery and alternator**: A weak battery or failing alternator can cause the motor to run slowly or not at all.

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### **Conclusion**

Buying a **1978-1982 C3 Corvette power seat motor (GM #14039179)** is a practical choice for restoring functionality, enhancing comfort, and maintaining authenticity in your car. The part is **widely available, relatively inexpensive, and easy to install**, making it a solid upgrade for most enthusiasts. However, **electrical reliability, potential wear, and compatibility with modified seats** are key considerations that must be addressed before purchase.

If you re restoring a C3 and want a **fully functional power seat**, this motor is a great option **as long as you re prepared to troubleshoot electrical issues and ensure the rest of the system (wiring, switches, seat track) is in good condition**. For drivers who prioritize **simplicity and cost-effectiveness**, it s an excellent choice. However, if you re dealing with a **highly modified or heavily restored car**, additional testing may be required to ensure seamless integration.

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### **Final Recommendation**

1. **Buy from a trusted source** (eBay verified, junkyard with inspection, or a reputable aftermarket dealer) to avoid counterfeit or damaged parts.

2. **Test the motor thoroughly** before installing check for smooth operation in all directions and inspect wiring for corrosion.

3. **Inspect the entire power seat system** (switches, track bar, wiring) to ensure nothing else is failing.

4. **Consider a complete power seat kit** if available, as it may include switches and wiring for a more hassle-free installation.

5. **Budget for additional electrical work** if your C3 s system is outdated or corroded this may include cleaning connectors, replacing fuses, or upgrading the battery.

6. **Document the installation** and keep records of any modifications, as this helps with future troubleshooting.

**Verdict:** **Worth buying** if you need a reliable, period-correct power seat motor for your C3. Just be prepared for potential electrical quirks and ensure the rest of the system is in good shape. For most enthusiasts, this is a **low-risk, high-reward upgrade** that enhances both function and enjoyment.

Details:

This unit has been tested and working. Power seat motor from a 1978-1982 C3 Corvette.

part #: 14039179 prices

• $44.99-$130.00

specifications seainterio:

• for models: C3, Corvette
• for years: 1978-1982
• brand: Gm
• mpn: 14039179
• part type: Seat Motor
• color: Black
• features: Motorized Seat
• placement on vehicle: Left, Front, Driver Side

offer seainterio:

• quantity: 1
• best offers: True
• started: February 21, 2026
• sold: 0
• availability: In Stock
• options: Ship-to-home

general seainterio:

• Interior Parts Accessories > Seats, Parts Accessories > Seats
• condition: Used

shipping seainterio:

• transit: 4-9 Days
• type: Calculated
• cost: $8.65
• carrier: USPS
• class: Standard
• service: USPS Ground Advantage

seller seainterio:

• # reviews: 310
• city: Waterford, Pennsylvania
• rating: 99.2%

returns seainterio:

• policy: No Returns

payments seainterio:

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

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