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Genuine Buick 16640848 - Trunk Lock Actuator Motor
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.
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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.
- BrandGenuine Buick
- ManufacturerGenuine Buick
- MPN16640848
- Part TypeTrunk Lock Actuator Motor
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1996 | Buick | Park Avenue | Base (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1996 | Buick | Park Avenue | Ultra (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1996 | Buick | LeSabre | Custom (3.8 V6 GAS) | |
| 1996 | Buick | LeSabre | Limited (3.8 V6 GAS) | |
| 1996 | Buick | Roadmaster | Collector's Edition (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1996 | Buick | Roadmaster | Estate Wagon Collector's Edition (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1996 | Buick | Roadmaster | Limited Collector's Edition (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1996 | Buick | Riviera | Base (3.8 V6 GAS) | |
| 1995 | Buick | Park Avenue | Base (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1995 | Buick | Park Avenue | Ultra (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1995 | Buick | Roadmaster | Base (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1995 | Buick | Roadmaster | Limited (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1995 | Buick | Riviera | Base (3.8 V6 GAS) | |
| 1995 | Buick | LeSabre | Custom (3.8 V6 GAS) | |
| 1995 | Buick | LeSabre | Limited (3.8 V6 GAS) | |
| 1998 | Buick | LeSabre | Custom (3.8 V6 GAS) | |
| 1998 | Buick | LeSabre | Limited (3.8 V6 GAS) | |
| 1998 | Buick | Riviera | Base (3.8 V6 GAS) | |
| 1997 | Buick | LeSabre | Custom (3.8 V6 GAS) | |
| 1997 | Buick | LeSabre | Limited (3.8 V6 GAS) | |
| 1997 | Buick | Riviera | Base (3.8 V6 GAS) | |
| 1999 | Buick | LeSabre | Custom (3.8 V6 GAS) | |
| 1999 | Buick | LeSabre | Limited (3.8 V6 GAS) | |
| 1994 | Buick | Roadmaster | Base (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1994 | Buick | Roadmaster | Limited (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1994 | Buick | Park Avenue | Base (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1994 | Buick | Park Avenue | Ultra (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1994 | Buick | LeSabre | Custom (3.8 V6 GAS) | |
| 1994 | Buick | LeSabre | Limited (3.8 V6 GAS) | |
| 1993 | Buick | Roadmaster | Base (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1993 | Buick | Roadmaster | Limited (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1993 | Buick | Park Avenue | Base (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1993 | Buick | Park Avenue | Ultra (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1993 | Buick | LeSabre | Custom (3.8 V6 GAS) | |
| 1993 | Buick | LeSabre | Limited (3.8 V6 GAS) | |
| 1992 | Buick | Roadmaster | Base (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1992 | Buick | Roadmaster | Limited (5.7 V8 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1992 | Buick | Park Avenue | Base (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1992 | Buick | Park Avenue | Ultra (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1992 | Buick | LeSabre | Custom (3.8 V6 GAS) | |
| 1992 | Buick | LeSabre | Limited (3.8 V6 GAS) | |
| 1991 | Buick | Park Avenue | Base (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
| 1991 | Buick | Park Avenue | Ultra (3.8 V6 GAS) | Notes: Exc.Power Trunk Opening/Closing |
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.
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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.





