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  3. LEXUS 6040723

LEXUS 6040723 Front Left Driver Door Lock Latch Actuator

fits model: Rx400h. make: Lexus. year: 2006.

6040723 Lexus 2006 Rx400h Front Left Driver Door Lock Latch Actuator

( Manufacturer Part Number: 6040723 ), ( Part Type: Actuator Driver Door Lock Latch ), ( Placement On Vehicle: Front, Left )

Review LEXUS Front Left Driver Door Lock Latch Actuator fits RX400H 2006

The **Lexus 6040723 2006 RX400h Front Left Driver Door Lock Latch Actuator** is a precision-engineered component designed to ensure seamless and reliable operation of the power door locking system in the iconic Lexus RX400h hybrid SUV. This high-quality actuator is a critical part of the vehicle s electrical door locking mechanism, responsible for engaging and disengaging the door latch with smooth, quiet precision under the command of the driver s door lock switch. Crafted to meet Lexus s stringent quality standards, this actuator is built with durable materials, including robust plastic housings reinforced with metal components where necessary, to withstand the rigors of daily use while maintaining long-term reliability. The internal mechanism features a compact yet powerful electric motor paired with a gear train, allowing for efficient power transmission to the latch mechanism without excessive wear or noise. This actuator is engineered to interface seamlessly with the RX400h s advanced hybrid powertrain and integrated electronics, ensuring compatibility with the vehicle s door lock control system, including the central locking function and keyless entry features. Whether replacing a worn-out or failed original part or upgrading for enhanced durability, this aftermarket actuator delivers the same level of performance and refinement expected from Lexus, providing drivers with a secure, convenient, and hassle-free locking experience. Ideal for both professional mechanics and DIY enthusiasts, this component is a direct-fit replacement, ensuring an easy installation process with minimal adjustments required. Its robust construction and adherence to Lexus s engineering specifications make it a trusted choice for maintaining the integrity and functionality of the RX400h s door locking system.

**Pros and Cons of Buying a Replacement Lexus RX400h Front Left Driver Door Lock Latch Actuator (Part Number: 6040723, 2006 Model)**

### **Pros:**

1. **Direct Fit and Compatibility** The part is specifically designed for the 2006 Lexus RX400h, ensuring a proper fit without modifications. This reduces the risk of installation issues or misalignment.

2. **Reliability and Durability** Lexus parts, especially those from authorized dealers or reputable aftermarket suppliers, are built to meet or exceed OEM standards. A quality actuator should provide long-term performance, reducing the likelihood of premature failure.

3. **Prevents Further Damage** A faulty door latch actuator can strain the door mechanism, leading to wear on hinges, seals, or wiring over time. Replacing it early can prevent secondary damage and costly repairs.

4. **Convenience and Safety** A functioning door latch ensures the door closes properly, which is critical for safety (e.g., preventing the door from opening unexpectedly while driving) and convenience (e.g., smooth operation of power locks).

5. **Warranty Coverage (If Purchased from Authorized Sources)** Some suppliers offer warranties or return policies, providing peace of mind in case the part fails shortly after installation.

6. **Cost-Effective Alternative to Full Door Replacement** Replacing just the actuator is far cheaper than overhauling or replacing the entire door assembly, which can cost significantly more.

7. **Easy Installation** The part is relatively straightforward to replace, especially for those with basic mechanical skills. Most users can complete the job in under an hour with the right tools (e.g., socket set, trim removal tools).

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### **Cons:**

1. **Potential Counterfeit Parts** Purchasing from untrusted sellers (e.g., unlicensed online marketplaces or eBay without seller verification) risks receiving a knockoff part. These may fail quickly, lack proper seals, or not fit correctly, voiding any warranty.

2. **Labor Costs if Professional Installation is Needed** While the part itself is affordable, if you lack mechanical experience, hiring a mechanic to install it may add to the total cost (typically $50 $150 for labor, depending on the shop).

3. **Additional Tools or Accessories May Be Required** Some installations may require specialized tools (e.g., door panel removal tools, torque wrench) or replacement of worn-out seals or bushings in the door mechanism.

4. **Mismatched Quality** Even from legitimate suppliers, aftermarket parts may not match the exact build quality of an OEM Lexus part. While rare, some actuators may have slightly less robust construction.

5. **Diagnostic Time** If the issue is not purely the actuator (e.g., wiring problems, faulty door lock motor, or a stuck latch mechanism), replacing the actuator alone may not solve the problem, requiring further troubleshooting.

6. **Potential for Overpaying** Buying from premium or "premium refurbished" sellers can inflate the price. Comparing prices across suppliers (e.g., RockAuto, eBay, local auto parts stores) can help secure a better deal.

7. **Environmental Concerns** If the old actuator is not recycled properly, disposing of it may require taking it to a scrap yard or auto parts store that accepts such materials.

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### **Conclusion:**

Replacing a faulty door latch actuator on a 2006 Lexus RX400h is a practical and cost-effective solution to restore proper door function. The benefits such as preventing further damage, ensuring safety, and avoiding more expensive repairs outweigh the drawbacks for most owners. However, the success of the repair depends heavily on sourcing a genuine or high-quality part and ensuring proper installation.

**Key Considerations Before Purchasing:**

- **Verify the part number (6040723) matches your vehicle s exact specifications** (some RX models may have slight variations).

- **Buy from a reputable supplier** (e.g., RockAuto, local Lexus dealership parts department, or trusted online retailers with seller ratings).

- **Check for return policies or warranties** to mitigate risks of receiving a defective part.

- **Assess your DIY skills** if unsure, consult a mechanic to avoid damaging the door mechanism during removal/installation.

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### **Recommendation:**

Purchase the **OEM or high-quality aftermarket actuator** from a trusted source like RockAuto, AutoZone, or a Lexus dealership parts department. If possible, opt for an **OEM part** (e.g., from a Lexus dealer) for maximum reliability, even if it costs slightly more. For those comfortable with basic repairs, install it yourself to save labor costs. If the door mechanism shows signs of wear (e.g., rust, misalignment), consider replacing associated seals or bushings during the process. Avoid purchasing from unverified sellers to ensure the part is authentic and functional.

Details:

It ensures proper functionality of the door lock mechanism, providing security and convenience for driver passengers Lexus RX400h. Used front left driver door lock latch actuator for a 2006 Lexus RX400h. This genuine Lexus part, with the manufacturer part number 6040723, is designed specifically for left front side of vehicle. This high-quality door lock latch actuator is a crucial component for maintaining the overall performance and safety of vehicle.

part #: 6040723 price

  • $40.61

specifications carlockiio:

  • for models: Rx400h
  • for makes: Lexus
  • for years: 2006
  • mpn: 6040723
  • part type: Actuator Driver Door Lock Latch
  • placement on vehicle: Front, Left

returns carlockiio:

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

seller carlockiio:

  • city: Pittsburgh, Pennsylvania
  • # reviews: 2020
  • rating: 99.9%

payments carlockiio:

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

shipping carlockiio:

  • transit: 4-7 Days
  • class: Economy, Expedited, One-day
  • carrier: FedEx
  • cost: $13.66
  • type: Calculated
  • service: FedEx Ground Economy, FedEx 2Day, FedEx Standard Overnight, FedEx Priority Overnight

offer carlockiio:

  • quantity: 1
  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • started: May 30, 2026
  • best offers: True

general carlockiio:

  • condition: Used
  • Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware
for models: rx400h, for makes: lexus, for years: 2006, part type: actuator driver door lock latch, placement on vehicle: front, left,
category: auto parts > car truck parts accessories > exterior parts accessories > exterior locks lock hardware, sku: 31866657577169604,
Lexus 6040723 Is Similar To:
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1 offer $40.61 USD
  • Used. Offer #1 priced at $40.61 + $13.66 shipping estimate = $54.27* total. This high-quality door lock latch actuator is a crucial component for maintaining the overall performance and safety of the vehicle. Used front left driver door lock latch actuator for a 2006 Lexus RX400h.+$13.66 shipping

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