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    Genuine Buick 16640848 - Trunk Lock Actuator Motor

    MPN: 16640848
    0.0
    Vehicle Specific
    Check if this part fits your vehicle.
    • $74.95
    In stock

    Product Overview

    The Genuine Buick 16640848 Trunk Lock Actuator Motor is designed to provide reliable locking and unlocking functionality for your vehicle's trunk. This part is engineered to meet OE specifications, ensuring a perfect fit and performance that matches the original equipment. With a strong emphasis on quality and dependability, you can trust this actuator motor to enhance the security of your Buick. Choose Genuine Buick 16640848 for dependable performance and peace of mind every time you service your vehicle.

    Cross Reference Numbers

    This Genuine Buick 16640848 is equivalent to or replaces the following part numbers:

    Vehicle Compatibility

    • Buick Park Avenue (1991-1996) 3.8 V6
    • Buick Roadmaster (1992-1996) 5.7 V8
    • Buick LeSabre (1992-1999) 3.8 V6
    • Buick Riviera (1995-1998) 3.8 V6

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

    Why Choose Newparts.com?

    • Trusted by DIYers and pros for over 15 years
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    Frequently Asked Questions

    What is the purpose of the trunk lock actuator motor?

    The trunk lock actuator motor, like the Genuine Buick 16640848, is responsible for locking and unlocking the trunk lid of your vehicle, providing enhanced security and convenience.

    How do I know if my trunk lock actuator motor needs replacement?

    If you experience issues with locking or unlocking your trunk, or if the actuator motor makes unusual noises, it may be time to replace it with the Genuine Buick 16640848.

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

    While trunk lock actuators typically do not trigger diagnostic trouble codes, if you experience electrical issues, check for codes related to the body control module.

    How can I ensure the Genuine Buick 16640848 fits my vehicle?

    To verify fitment, use the vehicle selector tool on our website or consult your vehicle's owner manual for compatibility before purchasing.

    Why should I choose the Genuine Buick 16640848 for my trunk lock actuator motor replacement?

    Choosing the Genuine Buick 16640848 ensures you receive a factory-correct replacement that meets high-quality standards for performance and durability.

    Order Genuine Buick 16640848 today for a factory-correct replacement that restores safety and performance.

      • Newparts SKU
        2034116
      • Weight
        0.93 lbs
      • Dimensions (L x W x H)
        9.557 x 3.1603 x 6.1484 in
      • Manufacturer Part #
        16640848
    • Brand
      Genuine Buick
    • Manufacturer
      Genuine Buick
    • MPN
      16640848
    • Part Type
      Trunk Lock Actuator Motor
    • Fitment
      • Fitment Type
        Vehicle Specific
    YearMakeModelSubmodelNotes
    1996BuickPark AvenueBase (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1996BuickPark AvenueUltra (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1996BuickLeSabreCustom (3.8 V6 GAS)
    1996BuickLeSabreLimited (3.8 V6 GAS)
    1996BuickRoadmasterCollector's Edition (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1996BuickRoadmasterEstate Wagon Collector's Edition (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1996BuickRoadmasterLimited Collector's Edition (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1996BuickRivieraBase (3.8 V6 GAS)
    1995BuickPark AvenueBase (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1995BuickPark AvenueUltra (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1995BuickRoadmasterBase (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1995BuickRoadmasterLimited (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1995BuickRivieraBase (3.8 V6 GAS)
    1995BuickLeSabreCustom (3.8 V6 GAS)
    1995BuickLeSabreLimited (3.8 V6 GAS)
    1998BuickLeSabreCustom (3.8 V6 GAS)
    1998BuickLeSabreLimited (3.8 V6 GAS)
    1998BuickRivieraBase (3.8 V6 GAS)
    1997BuickLeSabreCustom (3.8 V6 GAS)
    1997BuickLeSabreLimited (3.8 V6 GAS)
    1997BuickRivieraBase (3.8 V6 GAS)
    1999BuickLeSabreCustom (3.8 V6 GAS)
    1999BuickLeSabreLimited (3.8 V6 GAS)
    1994BuickRoadmasterBase (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1994BuickRoadmasterLimited (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1994BuickPark AvenueBase (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1994BuickPark AvenueUltra (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1994BuickLeSabreCustom (3.8 V6 GAS)
    1994BuickLeSabreLimited (3.8 V6 GAS)
    1993BuickRoadmasterBase (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1993BuickRoadmasterLimited (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1993BuickPark AvenueBase (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1993BuickPark AvenueUltra (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1993BuickLeSabreCustom (3.8 V6 GAS)
    1993BuickLeSabreLimited (3.8 V6 GAS)
    1992BuickRoadmasterBase (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1992BuickRoadmasterLimited (5.7 V8 GAS)Notes: Exc.Power Trunk Opening/Closing
    1992BuickPark AvenueBase (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1992BuickPark AvenueUltra (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1992BuickLeSabreCustom (3.8 V6 GAS)
    1992BuickLeSabreLimited (3.8 V6 GAS)
    1991BuickPark AvenueBase (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
    1991BuickPark AvenueUltra (3.8 V6 GAS)Notes: Exc.Power Trunk Opening/Closing
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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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