AISIN SX-1957 Rear Left Door Lock Body Kq
fits model: Rx350. make: Lexus. year: 2010–2015.
( Brand: Aisin ), ( Manufacturer Part Number: SX-1957 ), ( Type: Door Lock Assembly ), ( Placement On Vehicle: Body Doors ), ( Manufacturer Warranty: 1 Year / 12, 000 Miles ), ( Ipn: C632 43-61 ), ( Compatible Year: 2015 2014 2013 2012 2011 2010 ), ( Core Charge: Free No Core Charge ), ( Position: Rear Left ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Aisin Door Lock Assembly )
Review AISIN Rear Left Door Lock Assembly Lexus Body Doors Kq fits RX350 2010–2015
The **Aisin SX-1957 Rear Left Door Lock Assembly** is a high-quality, direct-fit replacement part meticulously engineered to restore full functionality to the rear left door mechanism on **2010 through 2015 Lexus RX350** models, ensuring a seamless fit for both **body doors (KQ)** and **KQ platforms**. Crafted with precision by Aisin, a trusted automotive supplier known for reliability and durability, this lock assembly is designed to meet or exceed OEM specifications, delivering smooth operation and long-lasting performance. The component features a robust **plastic housing** reinforced with durable materials to withstand daily wear, while its **mechanical linkage** ensures effortless engagement and disengagement of the door latch, reducing the risk of jamming or misalignment. Ideal for DIY enthusiasts or professional mechanics, this lock assembly is a straightforward upgrade that eliminates common issues like sticking latches, weak spring tension, or premature wear, thereby enhancing the overall security and convenience of your vehicle s rear doors. Whether replacing a worn-out original part or upgrading for improved durability, the **Aisin SX-1957** provides a perfect balance of performance and compatibility, making it an essential component for maintaining the integrity of your Lexus RX350 s door systems.
### **Pros and Cons of Buying an Aisin SX-1957 Rear Left Door Lock for a 2010 2015 Lexus RX350 (KQ Body Doors)**
#### **Pros:**1. **Direct Fitment** The Aisin SX-1957 is specifically designed for the rear left door of the KQ-series Lexus RX350, ensuring compatibility without modification.
2. **Reliability** Aisin is a reputable manufacturer known for producing high-quality automotive components, including door locks, which are built to last.
3. **Easy Installation** The part is designed for straightforward replacement, often requiring only basic tools and minimal disassembly of the door panel.
4. **Prevents Common Issues** Many RX350 owners experience failure in door locks over time, particularly in the rear doors. Replacing the lock assembly can restore functionality and prevent further wear.
5. **Cost-Effective Alternative** Purchasing a new or refurbished Aisin lock is often cheaper than labor-intensive repairs or full door panel replacements.
6. **Compatibility with Other Systems** Since it s a direct-fit part, it should integrate seamlessly with the vehicle s power window and door lock actuators.
7. **Warranty Coverage** Some sellers offer warranties, providing peace of mind against defects in materials or workmanship.
#### **Cons:**1. **Potential for Counterfeit Parts** If purchasing from an unverified seller, there is a risk of receiving a knockoff or low-quality replica, which may fail prematurely.
2. **Labor Costs** While the part itself is affordable, professional installation may add to the total cost, especially if the door panel needs to be removed for full access.
3. **Additional Wear on Related Components** If the door lock actuator or wiring harness is degraded, replacing just the lock may not fully resolve the issue, requiring further repairs.
4. **Limited Availability** Depending on the source, finding a genuine Aisin part may require checking multiple suppliers, which can be time-consuming.
5. **DIY Challenges** For those unfamiliar with automotive repairs, removing and reinstalling the door panel can be tricky, potentially leading to mistakes or damage.
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### **Conclusion**
The Aisin SX-1957 rear left door lock is a practical and reliable solution for addressing lock failure in a 2010 2015 Lexus RX350. Its direct fitment, durability, and ease of installation make it a strong choice for owners experiencing lock issues. However, buyers should ensure they source the part from a trusted supplier to avoid counterfeit products. If mechanical skills are limited, consulting a professional for installation is advisable to prevent complications.
### **Recommendation**
If you are experiencing a malfunctioning rear left door lock on your RX350, purchasing the **Aisin SX-1957** is a sound investment. Prioritize buying from a reputable dealer or online retailer with positive reviews to guarantee authenticity. If possible, have a mechanic inspect the door lock actuator and wiring before installation to ensure the issue is fully resolved. For those comfortable with basic automotive repairs, a DIY replacement is feasible; otherwise, professional installation is recommended to maintain warranty coverage and avoid potential mistakes.
Details:
AISIN Rear Left Door Lock Assembly for 2010 - 2015 Lexus RX350 Body doors kq: Status: In Stock.
part #: sx1957 price
- $199.57
specifications carlockiio:
- for models: Rx350
- for makes: Lexus
- for years: 2010-2015
- brand: Aisin
- mpn: Sx-1957
- type: Door Lock Assembly
- placement on vehicle: Body Doors
- manufacturer warranty: 1 Year / 12, 000 Miles
- ipn: C632 43-61
- compatible year: 2015 2014 2013 2012 2011 2010
- core charge: Free No Core Charge
- position: Rear Left
- fitment type: Direct Replacement
- bundle description: 1 Pc Genuine Aisin Door Lock Assembly
general carlockiio:
- Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware
- condition: New
offer carlockiio:
- quantity: 3
- started: March 28, 2026
- sold: 0
- options: Ship-to-home
- availability: In Stock
payments carlockiio:
- wallet: Apple-pay
- other
- credit card: Diners-club
seller carlockiio:
- city: Indianapolis, Indiana
- rating: 99.6%
- # reviews: 638694
shipping carlockiio:
- type: Fixed
- class: Standard, Expedited
- transit: 4-7 Days
- service: Standard, Expedited
- cost: $0.00
returns carlockiio:
- paid by: Seller
- time: 30 Days
- policy: Returns Accepted
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