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          Genuine Mercedes-Benz 1647400500 - Trunk Lock Actuator Motor

          MPN: 1647400500
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $340.64
          In stock

          Product Overview

          The Genuine Mercedes-Benz Trunk Lock Actuator Motor (MPN: 1647400500) is an essential component designed to ensure the reliable locking and unlocking of your vehicle's trunk. This actuator motor meets OE-level quality standards, providing superior performance and a perfect fit for compatible Mercedes-Benz models. With the trust of the Genuine Mercedes-Benz brand, you can count on this part to restore functionality to your trunk system. Choose Genuine Mercedes-Benz 1647400500 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Genuine Mercedes-Benz 1647400500 is equivalent to or replaces the following part numbers: 164 740 05 00, 1647400500, 1647400635.

          Vehicle Compatibility

          • 2006-2007 Mercedes-Benz ML500 5.0 V8
          • 2006-2012 Mercedes-Benz ML350 3.5 V6
          • 2007-2009 Mercedes-Benz ML320 3.0 V6
          • 2007-2011 Mercedes-Benz ML63 AMG 6.3 V8
          • 2008-2011 Mercedes-Benz ML550 5.5 V8
          • 2010-2011 Mercedes-Benz ML450 3.5 V6
          • 2010-2012 Mercedes-Benz ML350 3.0 V6

          This also fits other applications. Please use the vehicle selector tool to verify fitment.

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          Frequently Asked Questions

          What is the function of the trunk lock actuator motor?

          The trunk lock actuator motor is responsible for locking and unlocking the trunk lid, ensuring the security of your belongings while providing convenient access.

          What vehicles is the Genuine Mercedes-Benz 1647400500 compatible with?

          The Genuine Mercedes-Benz 1647400500 is compatible with several models, including the ML500, ML350, ML320, ML63 AMG, ML550, ML450, and others from 2006 to 2012.

          What happens if the trunk lock actuator fails?

          If the trunk lock actuator fails, you may experience difficulty locking or unlocking the trunk, which can compromise the security of your vehicle. Replacing it with a Genuine Mercedes-Benz 1647400500 will restore proper function.

          Are there any diagnostic trouble codes related to trunk lock actuator issues?

          While trunk lock actuators typically do not trigger specific DTCs, issues may arise related to the vehicle's central locking system. Ensure your actuator is functioning properly to avoid potential electrical faults.

          Why should I choose the Genuine Mercedes-Benz 1647400500?

          Choosing the Genuine Mercedes-Benz 1647400500 ensures you receive a factory-correct replacement that meets high-quality standards and fits your specific model perfectly. Order Genuine Mercedes-Benz 1647400500 today for a factory-correct replacement that restores safety and performance.

            • Newparts SKU
              1545806
            • Weight
              2.75 lbs
            • Dimensions (L x W x H)
              9.557 x 3.1603 x 6.1484 in
            • Manufacturer Part #
              1647400500
          • Brand
            Genuine Mercedes-Benz
          • Manufacturer
            Genuine Mercedes-Benz
          • MPN
            1647400500
          • OE Part Numbers
            164 740 05 00, 1647400500, 1647400635
          • Part Type
            Trunk Lock Actuator Motor
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2012Mercedes-BenzML3504Matic (3.5 V6 GAS)Notes: Incl.Latch
          2012Mercedes-BenzML350Bluetec 4Matic (3.0 V6 DIESEL)Notes: Incl.Latch
          2008Mercedes-BenzML550Base (5.5 V8 GAS)Notes: From Chassis/VIN A227440, Incl.Latch
          2008Mercedes-BenzML3504Matic (3.5 V6 GAS)Notes: From Chassis/VIN A227440, Incl.Latch
          2008Mercedes-BenzML320CDI (3.0 V6 DIESEL)Notes: From Chassis/VIN A227440, Incl.Latch
          2008Mercedes-BenzML63 AMGBase (6.3 V8 GAS)Notes: From Chassis/VIN A227440, Incl.Latch
          2009Mercedes-BenzML550Base (5.5 V8 GAS)Notes: Incl.Latch
          2009Mercedes-BenzML3504Matic (3.5 V6 GAS)Notes: Incl.Latch
          2009Mercedes-BenzML350Base (3.5 V6 GAS)Notes: Incl.Latch
          2009Mercedes-BenzML320Bluetec 4Matic (3.0 V6 DIESEL)Notes: Incl.Latch
          2009Mercedes-BenzML63 AMGBase (6.3 V8 GAS)Notes: Incl.Latch
          2010Mercedes-BenzML550Base (5.5 V8 GAS)Notes: Incl.Latch
          2010Mercedes-BenzML350Base (3.5 V6 GAS)Notes: Incl.Latch
          2010Mercedes-BenzML3504Matic (3.5 V6 GAS)Notes: Incl.Latch
          2010Mercedes-BenzML350Bluetec 4Matic (3.0 V6 DIESEL)Notes: Incl.Latch
          2010Mercedes-BenzML450Hybrid 4Matic (3.5 V6 FHEV)Notes: Incl.Latch
          2010Mercedes-BenzML63 AMGBase (6.3 V8 GAS)Notes: Incl.Latch
          2011Mercedes-BenzML550Base (5.5 V8 GAS)Notes: Incl.Latch
          2011Mercedes-BenzML350Base (3.5 V6 GAS)Notes: Incl.Latch
          2011Mercedes-BenzML3504Matic (3.5 V6 GAS)Notes: Incl.Latch
          2011Mercedes-BenzML350Bluetec 4Matic (3.0 V6 DIESEL)Notes: Incl.Latch
          2011Mercedes-BenzML450Hybrid 4Matic (3.5 V6 FHEV)Notes: Incl.Latch
          2011Mercedes-BenzML63 AMGBase (6.3 V8 GAS)Notes: Incl.Latch
          2006Mercedes-BenzML3504Matic (3.5 V6 GAS)Notes: Incl.Latch
          2006Mercedes-BenzML500Base (5.0 V8 GAS)Notes: Incl.Latch
          2007Mercedes-BenzML3504Matic (3.5 V6 GAS)Notes: From Chassis/VIN A227440, Incl.Latch
          2007Mercedes-BenzML500Base (5.0 V8 GAS)Notes: Incl.Latch
          2007Mercedes-BenzML63 AMGBase (6.3 V8 GAS)Notes: From Chassis/VIN A227440, Incl.Latch
          2007Mercedes-BenzML320CDI (3.0 V6 DIESEL)Notes: From Chassis/VIN A227440, Incl.Latch
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          Warranty Overview

          At Newparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.

          Standard Warranty – Most Parts

          • Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.

          • Protection: Defects in materials or workmanship under normal personal use.

          • Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.

          • Exclusions:

            • Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)

            • Commercial, fleet, rideshare, off-road, or racing use

            • Improper installation, misuse, accidents, or modifications

          • Not Covered: Labor, shipping, towing, or incidental costs.

          Bison Performance Warranty – Our House Brand

          • Coverage: Limited Lifetime Warranty for as long as you own your vehicle.

          • Applies To: All products sold under the Bison Performance label.

          • Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.

          • Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).

          • What’s Included: Replacement of the defective product (labor and shipping excluded).

          Warranty Claim Requirements

          To keep claims fast and fair, we require:

          • Proof of purchase (invoice or order confirmation).

          • Photos or videos showing the defective part, order number, date, VIN, and odometer reading.

          • Diagnostic reports or part returns for non-visible issues may be requested.

          • Claims must be truthful, properly documented, and reflect normal consumer use.

          Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.

          For full details and exclusions, please see our complete Warranty Terms & Conditions.


          This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.

          Return Policy Overview

          Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
          To start a return, use our Return Portal or contact support.

          • Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)

          • Refunds: Issued to your original payment method within 3–5 business days after inspection

          • Exchanges: Not automatic — please return and reorder

          • Replacements: May be approved for incorrect or defective items reported within 7 days

          Not returnable:

          • Used or installed parts

          • Electrical components

          • Opened filter kits, gaskets, or contaminated items

          • Final sale or custom orders

          Important Notes:

          • Return shipping is your responsibility unless we made a verified error

          • Fitment is the customer’s responsibility (we can assist, but do not guarantee)

          • Country of origin may vary and is not grounds for return

          For complete details, please see our full Return Policy.



          This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.

          Fast, Reliable Shipping — Straight to Your Door

          We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.

          • We use trusted carriers like UPS, FedEx, and USPS.

          • Tracking info is emailed to you as soon as your order ships.

          • Delivery estimates at checkout are based on carrier data, but not guaranteed.

          Need help with a shipment?

          If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.

          For full details, please see our complete Shipping Policy.


          This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions,  risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.

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