BUICK 640.GM4A17 Decklid Trunk Liftgate Hatch Motor Actuator Decklid/trunk/liftgate/hatch 1YR Wrnty

( Part Type: Trunk Actuator Motor ), ( Conditions Options: Lid Motor And Pump ), ( Genuine Oem: Yes ), ( Ipn: 640.gm4a17 ), ( Warranty: 1 Year )

Review BUICK Decklid/trunk/liftgate/hatch Motor Actuator Oem 1yr Wrnty fits ENCLAVE 2017

The **Buick 640.GM4A17 Decklid/Trunk/Liftgate/Hatch Motor Actuator** is a precision-engineered, high-performance component designed exclusively for the **2017 Buick Enclave**, ensuring seamless and reliable operation of the vehicle s rear cargo area. This motor actuator is a critical part of the Enclave s advanced **electronic liftgate system**, engineered to deliver smooth, silent, and effortless opening and closing of the decklid, trunk, or hatch depending on the specific configuration of the vehicle. Crafted from durable, corrosion-resistant materials, the actuator is built to withstand the rigors of daily use, extreme weather conditions, and long-term reliability, making it an essential upgrade or replacement part for owners seeking to maintain the Enclave s premium functionality.

The **GM4A17** actuator features a **high-torque electric motor** paired with a robust **gear reduction system**, allowing for precise control and consistent performance over thousands of cycles. Its **sealed and weatherproof design** ensures protection against dust, moisture, and debris, which is particularly important for vehicles frequently exposed to varying climates or off-road conditions. The actuator is also compatible with the Enclave s **factory-installed electronic control module (ECM)**, ensuring seamless integration with the vehicle s existing systems, including keyless entry, remote control, and smart access features. Whether used as an **OEM replacement** after wear or damage or as a **preventative upgrade** to enhance longevity, this actuator maintains the Enclave s signature blend of luxury and practicality.

Backed by a **one-year warranty**, this motor actuator provides peace of mind for buyers, guaranteeing that it meets General Motors stringent quality standards. The **direct-fit design** ensures an easy installation process, requiring minimal effort from a skilled technician or even a confident DIY enthusiast, with no need for additional modifications or adapters. Whether the original actuator has failed due to mechanical wear, electrical issues, or environmental exposure, this replacement part restores full functionality to the Enclave s rear cargo system, allowing for smooth operation of the liftgate whether manually, via remote, or through the vehicle s integrated keyless system. Ideal for both **new installations** and **replacements**, the **Buick 640.GM4A17 Decklid/Trunk/Liftgate/Hatch Motor Actuator** is a dependable choice for maintaining the Enclave s performance, convenience, and long-term reliability.

**Pros and Cons of Buying a Used Buick 640.GM4A17 Decklid/Trunk/Liftgate/Hatch Motor Actuator for a 2017 Enclave with a 1-Year Warranty**

1. **Cost Savings** Purchasing a used or refurbished motor actuator is significantly cheaper than buying a new, OEM part from General Motors or an authorized dealer. This can save you hundreds of dollars, especially if the part is still in good working condition.

2. **Functionality** If the used actuator is in proper working order, it will perform the same function as a new one opening and closing the decklid, trunk, liftgate, or hatch as intended. This ensures the vehicle remains fully operational without mechanical issues.

3. **Warranty Coverage** The included 1-year warranty provides peace of mind, offering protection against defects in material or workmanship. If the actuator fails prematurely due to a manufacturing flaw, the seller or warranty provider will likely replace or repair it.

4. **Quick Replacement** If your vehicle s actuator is malfunctioning, a used part with warranty coverage allows for a faster repair compared to waiting for an OEM part to arrive, which can take days or weeks.

5. **Compatibility** The GM4A17 part is specifically designed for the 2017 Buick Enclave, ensuring a proper fit without the need for modifications. This reduces the risk of installation errors.

6. **Environmental Benefit** Buying a used part contributes to reducing electronic waste by extending the lifespan of existing components rather than supporting new manufacturing.

1. **Unknown Service History** Without access to the part s full history, there is a risk that it may have been previously damaged, improperly installed, or exposed to harsh conditions. This could lead to premature failure or reduced reliability.

2. **Potential Wear or Damage** Even if the seller states the actuator is in good condition, there is no guarantee it hasn t been subjected to wear, corrosion, or mechanical stress. This could result in it failing sooner than expected.

3. **Limited Warranty Duration** A 1-year warranty is relatively short compared to the lifespan of the part. If the actuator fails after the warranty expires, you may be responsible for replacement costs, which could be high if the part is no longer available or must be sourced from a dealer.

4. **Risk of Counterfeit or Mismatched Parts** There is a possibility the part could be a counterfeit, aftermarket knockoff, or a mismatched variant that does not function correctly with your vehicle. This could lead to further issues, such as the actuator getting stuck or failing to operate smoothly.

5. **Installation Challenges** If the actuator is damaged or the wiring harness is frayed, installation could be more difficult than anticipated. Improper installation may void the warranty or cause additional problems.

6. **Seller Reliability** The quality of the used part depends entirely on the honesty and integrity of the seller. If the seller is untrustworthy, they may not provide accurate information about the part s condition, leading to dissatisfaction.

7. **Potential Void Warranty** Some warranties may be voided if the part is not installed by a certified professional or if modifications are made during installation. This could leave you without coverage if issues arise.

Buying a used GM4A17 decklid/trunk/liftgate/hatch motor actuator for your 2017 Buick Enclave with a 1-year warranty can be a cost-effective solution if you prioritize affordability and immediate access to a replacement. However, the risks associated with unknown service history, potential wear, and limited warranty coverage must be carefully considered. If you are comfortable with the trade-offs and have verified the part s condition through inspection or a trusted source, this option can save you money while keeping your vehicle operational.

If possible, **prioritize purchasing an OEM or high-quality aftermarket part with a longer warranty** (such as from a reputable auto parts retailer like RockAuto, AutoZone, or a local Buick dealer). If you must use a used part, take the following steps to minimize risk:

1. **Inspect the Part Thoroughly** Check for visible damage, corrosion, or signs of wear. Test the motor s functionality if possible.

2. **Verify the Seller s Reputation** Purchase from a trusted source, such as a known online marketplace (eBay, Craigslist with verified sellers), a junkyard with a return policy, or a parts specialist.

3. **Confirm Compatibility** Ensure the part number (GM4A17) matches your vehicle s specifications exactly.

4. **Document the Purchase** Keep records of the transaction and warranty details in case of disputes.

5. **Consider Professional Installation** If you are unsure about installing the part yourself, have a mechanic do it to ensure proper fitment and warranty validity.

If your budget allows, **opt for a new or refurbished OEM part** to avoid long-term risks. However, if you are confident in the used part s condition and the warranty provides adequate protection, it can be a practical choice for a temporary or budget-friendly fix.

Details:

Very happy customer, excellent value and service. Please disregard other fitment charts they may not be correct. More Parts: 1 Year Warranty. Quality, Assured Parts All are Quality Tested Inspected.

Image shown may be the vehicle from which part was pulled, or a generic image representing typical stock, rather than unique item being sold. Free shipping only applies to items you keep. Model: ENCLAVE. 1 Year, Warranty Hassle-free, Satisfaction Guaranteed.

Shipping Damage:: Damages and evidence of tampering on the outer packaging must be noted delivery receipt by driver. Easy to find parts that don't require a mechanics knowledge. Warranty HASSLE-FREE 1 YEAR WARRANTY: All parts are warrantied for a period of 12 months or year from the purchase date. Please compare part numbers BEFORE purchasing.

If something is wrong with an order, we certainly do want to help you.

specifications sunroofconverti:

• for models: Enclave
• for makes: Buick
• for years: 2017
• part type: Trunk Actuator Motor
• conditions options: Lid Motor And Pump
• genuine oem: Yes
• ipn: 640.gm4a17
• warranty: 1 Year

general sunroofconverti:

• Exterior Parts Accessories > Roofs, Tops Sunroofs > Sunroofs Parts
• condition: Used

shipping sunroofconverti:

• service: Flat Rate Freight
• type: Fixed
• class: Freight
• cost: $25.00

offer sunroofconverti:

• sold: 0
• started: February 24, 2026
• best offers: True
• quantity: 1
• availability: In Stock
• options: Ship-to-home

returns sunroofconverti:

• paid by: Buyer
• time: 60 Days
• policy: Returns Accepted

payments sunroofconverti:

• other
• credit card: Visa
• wallet: Google-pay

seller sunroofconverti:

• city: Rancho Cordova, California
• rating: 97.1%
• # reviews: 23008

Buick Is Similar To:

• 10336495 Buick Genuine Oem Deflector (26% similar) ...(May 31st, 2017)
• 22859425 Gm Buick Oem Lacrosse Sunroof Sun Shade Cover (19.9% similar) Est, Mon to Fri. All airbag modules are also non returnable...(August 9th, 2018)
• 22911952 Gm Buick Oem Frame (19.3% similar) Est, Mon to Fri. All airbag modules are also non returnable...(August 9th, 2018)
• 22920147 Gm Buick Oem Lacrosse (20.5% similar) All airbag modules are also non returnable. Est, Mon to Fri...(August 9th, 2018)
• 22994508 Gm Buick Oem Lacrosse Header (22.6% similar) Est, Mon to Fri. All airbag modules are also non returnable...(March 16th, 2018)
• 25755065 Gm Buick Oem 06-11 Lucerne (26.2% similar) Warranting warranty...(January 21st, 2017)
• Oem Enclave 25930220 Sunroof-drain Hose Buick 11-12 Gm (19.9% similar) ...(March 4th, 2015)
• 84279479 Gm Buick Oem Enclave (29.3% similar) Part is non-returnable if opened, installed, or in un-sellable condition...(June 20th, 2018)
• Wvsr-be0812 Generic Sun Roof Window Visor Wind Guard Out-channel 5pcs 2008-2016 Buick Enclave (14.4% similar) Our sunroof visors is made with reinforced acrylic and double sided tape. Make sure all offers have ended prior to checking out and our system will automatically combine the shipping and apply the discount for you. Our window visors is made with reinforced acrylic and adhesive double sided tape. ...(June 21st, 2016)
• Lpv-be0816 Slim Rain Guards Window Visors Buick Enclave Low Profile Deflector (20.7% similar) ...(October 3rd, 2018)
• 15850282 Acdelco Gm Original Equipment Buick Rendezvous Rear Center Hatch Tail (21.8% similar) Your complete total satisfaction is our first priority. No cracks, nothing broken, all mounting tabs points are in tact. But unfortunately, that is not possible. Ask questions before purchase. Items may be mishandled, dropped, damaged, delivered later than expected, even misplaced or lost during ...(June 12th, 2021)