DORMAN 746-420 Liftgate Lock Actuator

( Brand: Dorman ), ( Manufacturer Part Number: 746-420 ), ( Part Type: Actuator Lock )

Review DORMAN Genuine Liftgate Lock Actuator

The **Dorman 746-420 Liftgate Lock Actuator** is a high-quality, direct-fit replacement component designed to restore proper functionality to the liftgate locking mechanism on select Ford, Lincoln, and Mercury vehicles equipped with electric liftgate systems. Engineered to meet or exceed OEM specifications, this actuator is built with durable materials and precision manufacturing to ensure reliable performance, even in demanding driving conditions. The unit features a robust internal motor and a sealed, corrosion-resistant housing, which helps protect against moisture, dust, and road debris critical factors for longevity in vehicles exposed to harsh environments. Whether replacing a failed actuator due to electrical issues, mechanical wear, or a simple malfunction, this Dorman part is engineered to seamlessly integrate with the vehicle s existing wiring and mounting points, eliminating the need for costly modifications or additional tools. Its compact yet sturdy design ensures smooth operation, allowing the liftgate to lock and unlock with the expected ease, whether manually or via remote control. Ideal for DIY enthusiasts and professional mechanics alike, the **746-420** is a trusted choice for restoring convenience and security to liftgate-equipped vehicles, offering a balance of affordability and performance that aligns with Dorman s reputation for dependable automotive replacements.

**Pros and Cons of buying a Dorman 746-420 Liftgate Lock Actuator**

The Dorman 746-420 is a common aftermarket replacement for liftgate lock actuators found in various Ford, Lincoln, and Mercury vehicles from the late 1990s through the early 2010s. Below is a detailed breakdown of its advantages and disadvantages.

### **Pros**

1. **Compatibility and Availability**

The Dorman 746-420 is widely recognized for its broad compatibility with vehicles like the Ford Taurus, Focus, Escape, and Lincoln LS, among others. This makes it an easy-to-find part, especially for older models where OEM replacements may be harder to source.

2. **Cost-Effective Solution**

Compared to original equipment manufacturer (OEM) parts, the Dorman actuator is significantly cheaper. This makes it an attractive option for budget-conscious consumers who need a functional replacement without paying premium prices.

3. **Quality and Reliability**

Dorman is a well-established brand under the Motorcraft line, known for producing high-quality aftermarket automotive parts. The 746-420 is designed to meet or exceed OEM specifications, ensuring reliable performance once installed.

4. **Easy Installation**

The part is straightforward to install, especially for those with basic mechanical skills. It typically requires removing the liftgate, disconnecting the wiring harness, and replacing the old actuator with the new one. No major modifications are usually needed.

5. **Warranty Coverage**

Dorman parts often come with a warranty, typically ranging from one to five years, depending on the retailer. This provides some peace of mind in case the actuator fails prematurely.

6. **Common Issue Fix**

Many liftgate lock actuators fail due to wear, corrosion, or electrical issues. The Dorman 746-420 is a direct replacement designed to address these common problems, restoring proper function to the liftgate mechanism.

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### **Cons**

1. **Potential Fitment Issues**

While the Dorman 746-420 is compatible with many vehicles, there can be slight variations in mounting points or wiring configurations depending on the specific model year and trim. Some owners may need to modify the bracket or wiring harness slightly to ensure a perfect fit.

2. **Quality Variability**

Although Dorman is generally reliable, some users report receiving parts that feel less robust than OEM units, particularly in terms of plastic components or internal mechanisms. This can occasionally lead to premature wear or failure.

3. **Electrical Compatibility Concerns**

In some cases, the wiring harness or connector on the Dorman actuator may not match the vehicle s original setup exactly. This could require additional soldering, crimping, or the use of a wiring harness adapter, adding complexity to the installation.

4. **Limited Longevity Compared to OEM**

While Dorman parts are durable, they may not last as long as genuine OEM actuators, especially in vehicles with high mileage or those subjected to harsh conditions (e.g., extreme cold, frequent use, or rough handling).

5. **Mixed Reviews on Durability**

Some online reviews indicate that the Dorman 746-420 may fail sooner than expected, particularly if the vehicle s liftgate mechanism was already worn out or if the actuator was not properly lubricated during installation. This inconsistency can be frustrating for buyers.

6. **No Free Technical Support**

Unlike OEM parts, Dorman does not always provide free technical support or assistance with installation. Troubleshooting may require additional research or consultation with a mechanic, which can be time-consuming.

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### **Conclusion**

The Dorman 746-420 liftgate lock actuator is a practical and cost-effective choice for many vehicle owners dealing with a faulty liftgate lock. Its widespread compatibility, affordability, and generally reliable performance make it a popular aftermarket solution. However, potential buyers should be aware of possible fitment challenges, variability in quality, and the need for careful installation to avoid complications.

For those on a tight budget or dealing with a non-luxury vehicle where OEM parts are difficult to find, the Dorman 746-420 is a solid option. However, if the vehicle is high-value or if the liftgate mechanism is already degraded, investing in an OEM or higher-quality aftermarket alternative (such as a part from a brand like ACDelco or Bosch) may be worth the extra cost for long-term reliability.

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### **Recommendation**

If you are replacing a liftgate lock actuator on a Ford, Lincoln, or Mercury vehicle (e.g., Taurus, Focus, Escape) and are looking for a balance between cost and performance, the **Dorman 746-420 is a reasonable choice**. Before purchasing, verify compatibility with your exact model year and trim to avoid fitment issues. Ensure you have the necessary tools and basic mechanical skills for installation, and consider lubricating the actuator during assembly to extend its lifespan.

For vehicles with higher mileage or those where the liftgate mechanism is heavily worn, **supplement the purchase with a high-quality lubricant (such as lithium-based grease) and consider checking the wiring harness for corrosion or damage**. If budget allows, an OEM or premium aftermarket actuator (e.g., ACDelco 214-1205) may offer better long-term reliability.

Ultimately, the Dorman 746-420 is a **good entry-level replacement** for most common applications, but thorough research and preparation will help ensure a successful outcome.

Details:

Request a Return. Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Add details like I tried to install this part, and it didn't fit. Just Didn't Like it.

Buyer should verify this is the exact part needed before purchasing. Electrical parts are not returnable. LOCK ACTUATOR, Liftgate, Lock, Actuator, Locks, Actuators, Door Latch, Lock Solenoid. Genuine Dorman Liftgate Lock Actuator 746-420: Parts: This liftgate lock actuator has undergone extensive quality and safety testing to ensure reliable performance.

Parts must be resalable and in the original packaging. Found a Better Price. Changed My Mind.

part #: 746420 prices

• $48.99-$141.39

specifications carlockiio:

• brand: Dorman
• mpn: 746-420
• part type: Actuator Lock

seller carlockiio:

• city: Pompano Beach, Florida
• # reviews: 3251
• rating: 99.6%

payments carlockiio:

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

general carlockiio:

• condition: New
• Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware

shipping carlockiio:

• service: UPS Ground
• transit: 4-10 Days
• cost: $16.61
• class: Standard
• type: Fixed
• carrier: UPS

returns carlockiio:

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

offer carlockiio:

• quantity: 2
• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: February 27, 2026

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