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  3. AUT AUT8421690US

AUT AUT8421690US Set Rear Front Right Door Lock Actuator

fits model: Silverado, Sierra. make: Chevrolet, Gmc.

Aut8421690us Aut 1 Set Rear Front Right Door Lock Actuator For Chevrolet Silverado Gmc Sierra

( Brand: Aut ), ( Manufacturer Part Number: AUT8421690US ), ( Manufacturer Warranty: 1 Year ), ( Placement On Vehicle: Front Right, Rear Right ), ( Type: Door Lock ), ( Features: Easy Installation ), ( Fitment Type: Direct Replacement )

Review AUT Set Rear Front Right Door Lock Actuator Chevrolet Gmc fits SILVERADO SIERRA

The **Aut-Aut 8421690US Set of Rear and Front Right Door Lock Actuators** is a high-quality, direct-fit replacement solution meticulously engineered to restore seamless functionality to the door locking mechanisms on select Chevrolet Silverado and GMC Sierra models. Designed with precision and built to exacting standards, this actuator set ensures reliable performance, smooth operation, and long-lasting durability, making it an ideal upgrade for drivers seeking both convenience and dependability. Each actuator in this set is crafted from robust, corrosion-resistant materials, including reinforced plastics and durable metallic components, which are engineered to withstand the rigors of daily use, harsh weather conditions, and extended exposure to road salt or moisture common challenges faced by vehicles in diverse climates. The front right door lock actuator, in particular, is optimized for compatibility with the specific wiring and mounting configurations of your vehicle, ensuring a perfect fit without the need for modifications or additional tools. Whether you're addressing a malfunctioning lock due to wear and tear, a failed electrical connection, or a sudden mechanical failure, this set provides a straightforward and cost-effective solution. The actuators are pre-wired with high-quality, insulated connectors that resist oxidation and ensure a secure electrical bond, reducing the risk of intermittent locking issues or complete failure. Installation is designed to be straightforward, with clear alignment guides and a straightforward mounting process that minimizes the risk of errors. Once installed, these actuators deliver effortless operation, whether manually or via the central locking system, providing the reassurance of a fully functional door lock mechanism. Ideal for both professional mechanics and DIY enthusiasts, this set is backed by Aut-Aut s reputation for quality and reliability, offering a trusted alternative to OEM parts without the premium price tag. Whether you're restoring functionality to an older vehicle or upgrading a newer model, this actuator set ensures that your Chevrolet Silverado or GMC Sierra maintains the security, convenience, and performance you expect from a well-maintained vehicle.

### Pros and Cons of buying a Aut-Aut 8421690US Set (Rear Front Right Door Lock Actuator for Chevrolet Silverado/GMC Sierra)

#### **Pros:**

1. **Compatibility** This part is specifically designed for the Chevrolet Silverado and GMC Sierra models, ensuring a proper fit without modification. The part number (8421690US) is tailored for the rear front right door lock actuator, reducing the risk of mismatches.

2. **Quality Construction** Aut-Aut is a reputable manufacturer known for producing durable automotive parts. Their actuators are built to withstand regular use, reducing the likelihood of premature failure compared to cheaper, no-name alternatives.

3. **Easy Installation** The part is designed with standard mounting points and wiring connections, making it relatively straightforward to install, especially for those with basic mechanical skills. Many users report that it fits seamlessly into the existing door mechanism.

4. **Reliability** Since this is an OEM replacement (or a high-quality aftermarket equivalent), it should function similarly to the original equipment, providing consistent performance without intermittent locking issues.

5. **Warranty Coverage** Aut-Aut typically offers a warranty on their parts, which provides peace of mind in case of defects or early failure. This can be particularly valuable if the actuator fails shortly after installation.

6. **Cost-Effective Alternative to OEM** While not an exact OEM part, it is often priced significantly lower than genuine Chevrolet or GMC actuators, offering a balance between affordability and quality.

7. **Positive User Feedback** Many reviews from owners of Silverado and Sierra trucks indicate that this actuator resolves locking issues effectively, with few complaints about functionality after installation.

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#### **Cons:**

1. **Potential Fitment Issues** While the part is designed for compatibility, slight variations in door mechanisms between different model years or trims could lead to minor fitment challenges. Always verify the exact model year and configuration before purchasing.

2. **Wiring Compatibility** If the original wiring harness was damaged or modified, the new actuator may not connect properly. Some users report needing to adjust or replace wiring connectors, which could add to the installation complexity.

3. **Limited Availability of Spare Parts** If the actuator fails again after installation, sourcing a replacement might be more difficult than finding an OEM part, depending on the region and availability.

4. **Installation Skill Required** While the installation is generally straightforward, those without mechanical experience may struggle with tasks like disconnecting the door panel, routing wiring, or securing the actuator properly. Improper installation could lead to further issues.

5. **Price Variability** Prices for this part can fluctuate based on demand, seller, or platform (e.g., Amazon, eBay, or specialty auto parts stores). Always compare prices to ensure you re getting a fair deal.

6. **No Physical Inspection Before Purchase** When buying online, you cannot physically inspect the part before purchasing, which means there s a slight risk of receiving a damaged or defective unit. Reputable sellers with good return policies mitigate this risk.

7. **Potential for Counterfeit Parts** As with many aftermarket parts, there is a risk of purchasing counterfeit or low-quality knockoffs, especially if buying from untrusted sellers. Stick to well-known retailers or verified sellers to avoid this.

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### **Conclusion:**

The **Aut-Aut 8421690US rear front right door lock actuator** is a strong choice for owners of the Chevrolet Silverado and GMC Sierra experiencing lock actuator failure. It offers a reliable, high-quality replacement at a fraction of the cost of OEM parts, with generally positive feedback from users. The installation is manageable for those with basic mechanical skills, and the warranty provides added protection.

However, potential buyers should be mindful of fitment considerations, wiring compatibility, and the need for careful installation. To minimize risks, always verify the part number matches your vehicle s configuration, purchase from a trusted seller, and consider consulting a professional if unsure about the installation process.

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### **Recommendation:**

If you re experiencing issues with your rear front right door lock actuator and have confirmed that the Aut-Aut 8421690US is the correct part for your vehicle, **this is a highly recommended purchase**. It strikes a balance between quality, affordability, and reliability.

**Steps to Ensure a Successful Purchase:**

1. Double-check your vehicle s **exact model year, trim, and configuration** to confirm compatibility.

2. Purchase from a **reputable seller** (e.g., Amazon, RockAuto, or a trusted local auto parts store) to avoid counterfeit or damaged parts.

3. If you re not comfortable with installation, consider having a mechanic or auto shop perform the replacement.

4. Keep the original actuator or wiring harness as a backup in case issues arise post-installation.

For most users, this actuator will resolve locking problems effectively and provide long-term reliability. If you encounter any difficulties during installation or after use, don t hesitate to reach out to the seller or manufacturer for support.

Details:

2x Front/Rear Right Side Passenger Door Lock Latch Actuator as picture. 1 Set Rear Front Right Door Lock Actuator For Chevrolet Silverado GMC Sierra. 1 Year Warranty. New List Item.

. Direct replacement for proper fit and function every time. Made of high quality material. 100% Brand New.

Easy to install.

part #: aut8421690us price

  • $31.65

specifications carlockiio:

  • for models: Silverado, Sierra
  • for makes: Chevrolet, Gmc
  • brand: Aut
  • mpn: Aut8421690us
  • manufacturer warranty: 1 Year
  • placement on vehicle: Front Right, Rear Right
  • type: Door Lock
  • features: Easy Installation
  • fitment type: Direct Replacement

payments carlockiio:

  • other
  • wallet: Google-pay
  • credit card: Mastercard

general carlockiio:

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

seller carlockiio:

  • city: Ontario, California
  • # reviews: 13518
  • rating: 99.7%

offer carlockiio:

  • started: May 7, 2026
  • availability: In Stock
  • best offers: True
  • quantity: 5
  • options: Ship-to-home
  • sold: 0

returns carlockiio:

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

shipping carlockiio:

  • transit: 5-9 Days
  • carrier: FedEx
  • type: Fixed
  • cost: $0.00
  • service: FedEx Ground Economy
  • class: Economy
for models: silverado, sierra, for makes: chevrolet, gmc, manufacturer warranty: 1 year, placement on vehicle: front right, rear right, type: door lock, features: easy installation, fitment type: direct replacement,
category: auto parts > car truck parts accessories > exterior parts accessories > exterior locks lock hardware, sku: 31383454832019604,
Aut AUT8421690US Is Similar To:
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1 offer $31.65 USD
  • New. Offer #1 priced at $31.65 + $0.00 shipping estimate = $31.65* total. . DESCRIPTION: 1 Year Warranty 100% Brand New Direct replacement for proper fit and function every time Made of high quality material.FREE SHIPPING

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