TOYOTA 643.TO1Q11 Rear Driver Left Lock Actuator

( Part Type: Actuator Driver Lock ), ( Conditions Options: Lh Rear Door Catch Latch ), ( Genuine Oem: Yes ), ( Ipn: 643.to1q11 ), ( Descriptionpartcondition: 16 Toyota Sienna Rear Driver Left Lock Actuator 570773 ), ( Manufacturer Warranty: 6 Month )

Review TOYOTA Rear Driver Left Lock Actuator fits SIENNA 2016

The **Toyota 643.TO1Q11 16 Siena Rear Driver s Side Lock Actuator** is a precision-engineered component designed specifically for the rear driver s side door mechanism in select Toyota models, including the **Toyota Avensis (16th generation, also known as the Siena in some markets)**. This critical part serves as the electrical actuator responsible for controlling the locking and unlocking functions of the rear passenger door, ensuring seamless operation of the power door lock system. Crafted from high-quality, durable materials, the actuator is built to withstand frequent use while maintaining reliability under varying environmental conditions, from extreme temperatures to moisture exposure. The unit features a robust internal motor and a robust gear mechanism, allowing for smooth and silent engagement of the door latch, even after prolonged periods of inactivity. Its compact yet sturdy design integrates seamlessly with the existing door frame and wiring harness, requiring minimal modification during installation. Whether replacing a worn-out or malfunctioning actuator due to electrical failure, mechanical wear, or a defective component, this aftermarket part is engineered to restore full functionality to the door lock system, enhancing both convenience and security. Compatible with the **16th generation Toyota Avensis (Siena)**, this actuator is a direct-fit replacement, ensuring an exact match in terms of dimensions, pin configuration, and electrical connectivity, eliminating the need for additional adapters or modifications. Ideal for mechanics, DIY enthusiasts, and Toyota owners seeking a cost-effective yet high-performance solution, this actuator upholds Toyota s reputation for dependable engineering while offering a hassle-free upgrade for those looking to restore or upgrade their vehicle s door lock functionality.

### **Pros and Cons of buying a Toyota 643.TO1Q11 (16 Sienna Rear Driver-Side Lock Actuator)**

1. **Direct Fitment** This part is specifically designed for the 2016 Toyota Sienna, ensuring compatibility without modifications.

2. **OEM Quality** As a genuine Toyota replacement, it meets the manufacturer s standards for durability and performance.

3. **Reliability** Toyota s lock actuators are known for longevity, reducing the risk of premature failure.

4. **Easy Installation** The part is designed for straightforward replacement, often requiring only basic tools.

5. **Warranty Coverage** Purchasing from an authorized dealer or reputable supplier may include a warranty, providing peace of mind.

6. **Prevents Further Damage** A faulty lock actuator can strain the door mechanism, leading to more expensive repairs if ignored.

7. **Improves Functionality** A properly functioning actuator ensures smooth door locking/unlocking, enhancing convenience and security.

1. **Cost** Genuine Toyota parts can be more expensive than aftermarket alternatives, though they often justify the price with reliability.

2. **Limited Availability** Depending on the supplier, stock may be limited, potentially causing delays in delivery.

3. **Installation Complexity (for DIYers)** While generally straightforward, some users may find wiring or mechanical adjustments challenging without experience.

4. **Potential Counterfeit Risks** Purchasing from untrusted sellers may result in fake or low-quality parts that fail prematurely.

5. **Additional Labor Costs** If installing professionally, labor fees may add to the total expense.

6. **Compatibility Concerns (Non-OEM Parts)** If opting for aftermarket alternatives, there s a risk of poor fit or functionality, though this is less of an issue with the genuine Toyota part.

---

### **Conclusion**

The **Toyota 643.TO1Q11 rear driver-side lock actuator** is a high-quality, reliable replacement part for the 2016 Sienna. While it comes at a premium price compared to aftermarket options, its OEM status ensures durability, ease of installation, and compatibility. The primary drawbacks higher cost and potential availability issues are outweighed by the long-term benefits of avoiding further mechanical problems.

For most owners, the **best choice is to purchase the genuine Toyota part**, either directly from Toyota or a trusted dealer, to ensure quality and warranty coverage. If budget is a concern, thorough research into reputable aftermarket brands (with positive reviews) could be a viable alternative, though with slightly higher risk.

Buy the **genuine Toyota 643.TO1Q11 actuator** from an authorized source to guarantee reliability and avoid future issues. If cost is a major factor, verify the seller s reputation and consider aftermarket options only if they come with strong warranties and user endorsements. Proper installation whether DIY or professional is key to ensuring the part functions correctly.

Details:

Flush inspect transmission cooling lines. Manual Transmissions. Daytime phone number is required load will not deliver until appointment scheduled. Replace thermostat gasket.

Remove torque converter bracket. Someone over 18 must be present for delivery. Differentials Axle Assemblies. Drain gear lubes and fill to manufacturers specifications.

Clear all computer fault codes. Replace flywheel. Properly torque converter. Adjust throttle position sensor cable.

Replace pilot bushing. Automatic Transmissions. Drain replace engine oils to manufacturers suggested levels. LH REAR DOOR CATCH LATCH 16 TOYOTA SIENNA DRIVER LEFT LOCK ACTUATOR 570773.

Use manufacturer recommended Transmission fluid. Inspect replace, gaskets and seals if needed. Add fluid to manufacturers suggested levels. Inspect and replace, if needed timing gears, chains, pensioner or belts gaskets.

Replace throw out bearing. Replace Filter and Gaskets. Replace oil, air fuel filters Replace valve cover gaskets. Replace oil pan gasket front/rear main seal.

Load is curbside delivery ONLY. Replace axle or drive shaft seal. Install new belts hoses. Install new water pump.

Replace all seals. Flush cooling system and refill with antifreeze to appropriate level. Install new spark plugs wires. Inspect adjust or replace shiftier linkages.

Clean the oil sump screen pickup tube. Replace clutch.

specifications carlockiio:

• for models: Sienna
• for makes: Toyota
• for years: 2016
• part type: Actuator Driver Lock
• conditions options: Lh Rear Door Catch Latch
• genuine oem: Yes
• ipn: 643.to1q11
• descriptionpartcondition: 16 Toyota Sienna Rear Driver Left Lock Actuator 570773
• manufacturer warranty: 6 Month

seller carlockiio:

• city: Rancho Cordova, California
• rating: 99.4%
• # reviews: 8780

offer carlockiio:

• quantity: 1
• options: Ship-to-home
• sold: 0
• started: March 6, 2026
• availability: In Stock
• best offers: True

returns carlockiio:

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

payments carlockiio:

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

shipping carlockiio:

• transit: 5-11 Days
• service: USPS Priority Mail, UPS Ground
• class: Expedited, Standard
• type: Fixed
• carrier: USPS, UPS
• cost: $0.00

general carlockiio:

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

Toyota Is Similar To:

• Toyota Lock Wheel Accessories 00276-42960 Genuine (29.9% similar) This lock set is triple nickel plated and the removal key is included. Product features for 2010 toyota DJ cruiser w 16 trad wheels or 17 factory alloy wheel technical details set of 5 genuine toyota alloy wheel lock set in original unopened packaging the 5TH lock is for exterior mounted spares. ...(December 2nd, 2014)
• 042514 Apdty Toyota Tundra Door Lock Actuator Motor Front Right (43% similar) I bought it for my 2012 tundra, but do not need anymore. Never installed or used...(September 30th, 2018)
• 101528-3000 Toyota Scion Xa Rear Liftgate Lock Latch Actuator Oem (55.3% similar) Any sign of tampering or attempt to disassemble alter the part will void warranty. This items was previously used and may show some signs of imperfections such as surface scratches, slight fading, dirt stains, scuffs, dents dings normal wear tear. The compatibility list is for reference only. Exact ...(December 4th, 2018)
• 113983 Sienna 99 Toyota Hatch Latch (32.3% similar) Keys key fobs are not included with any listing. The item is used and will appear as such. Surface rust, dust, dirt and or grease are common. Surface rust, dust, dirt and or grease are common. This listing is for one of those items, not all. This listing is for one of those items, not all. Left lh l...(December 31st, 2015)
• 11535853 Aftermarket Products New Hood Latch Lock For Toyota Runner (17.6% similar) The items are brand new parts that look and fit same as original, except at a much better price...(May 5th, 2018)
• 12 Toyota Sienna Right Rear (42.4% similar) Free shipping only applies to items you keep. For photos with images of the donor vehicle, please request actual part. It may be here tomorrow. Because our standard and hassle-free, 1-YEAR warranty is included with every oem auto part, you'll enjoy the peace of mind you deserve one less part to ...(June 5th, 2017)
• Assebly Lock Rear Toyota Left Hand 4runner 1989-1995 Door (26.1% similar) Does not come with exterior door handle rod clip. It has not been installed and comes with the lock rock clip and inside door handle rod clip. I have a rear door left hand side latch assembly for the years of the toyota 4RUNNER. Any other questions and ill be happy to answer them quickly...(June 11th, 2014)
• Oe Lock Fits Camry Toyota Door Motor 1992-2001 Solution Dorman Actuator (35.7% similar) Est, mon to Fri. Doorman oe solutions supplied your vehicles manufacturer with the door lock motor...(October 26th, 2014)
• 1993-1998 Kit Fits Motor Toyota T100 Pickup Lock Door Standard Products (27.9% similar) Est, mon to Fri. Standard motor products supplied your vehicles manufacturer with the door lock...(October 22nd, 2014)
• 010424 N5510147 01 02 03 2001-2003 Toyota Prius Door Lock Latch Actuator Fl Front Left W Handle (31.4% similar) Worldwide location front driver side. Part front left driver side door lock actuator with door handle. Fits toyota Prius from 2001 to 2003 warranty yes. Actual pictures. One day shipping available at discount rates. Removed from toyota Prius. 72,000 miles condition used...(December 14th, 2015)
• Toyota 2005-2015 Pop Red Tacoma Lock Pl5401 Barcelona Bolt Codeable (33.6% similar) Product features full size Barcelona red oem colour full handle replacement works with or without backup camera raised lock for ease of operation side mount for an original equipment look UV resistant coating no drilling required of corrosion surface also available in black, Barcelona red, speedway ...(December 9th, 2014)