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Picking the right GMC Acadia flywheel matters because it sits at the core of how your vehicle transfers engine torque to the transmission. A correctly matched, well-balanced flywheel reduces vibration, protects the clutch assembly, and helps the engine idle and respond more smoothly. This guide highlights seven shortlisted flywheels selected for fitment and build quality. We evaluated durability, balance, and compatibility to identify options likely to meet common repair and upgrade needs. Read on to see which features matter most and why these picks made the list.
Looking for other parts? See all GMC Acadia parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | GM Genuine Parts 14077157 Engine Flywheel |  |
| Best quality Built to a higher standard if you want something more solid | GM Genuine Parts 12571611 14-Inch LS Flywheel |  |
| Best Value The sweet spot between price and what you get | Artudatech 168-Tooth Flywheel for GM 4.8/5.3/6.0L LS Swap |  |
| Best Budget The cheapest option that still gets the job done reliably | ATP Z-406 Automatic Transmission Flexplate |  |
| Highest Rated A top-rated pick with lots of positive feedback | GM Genuine Parts 55587031 Engine Flywheel |  |
| Most Popular A crowd favorite that many people choose with confidence | GM Genuine Parts 12555640 Flexplate (Engine Flywheel) |  |
| Best Seller A high-volume bestseller chosen again and again | GM Genuine Parts 24287452 Engine Flywheel |  |
1. GM Genuine Parts 14077157 Engine Flywheel
| Manufacturer | GM Genuine Parts |
|---|---|
| Item model number | 14077157 |
| Exterior | Machined |
| Item Weight | 5.55 pounds |
This GM Genuine Parts flywheel is a factory-quality replacement designed to restore proper clutch engagement and drivetrain balance on compatible GM vehicles. Built to GM specifications and machined for a precise mounting surface, it installs like a direct replacement and is intended for use during clutch or transmission service. The product is marketed as a validated GM part, which helps ensure correct fit and consistent ring gear alignment for starter engagement. In use it provides the expected durability and balance of a factory replacement, and customer reports indicate straightforward fitment. The main limitation is that this is a direct replacement flexplate/flywheel intended for stock application rather than a performance aftermarket upgrade, so users seeking lighter weight or modified engagement characteristics should look elsewhere. For routine clutch jobs and restoring stock drivability this part simplifies sourcing and reduces the risk of fitment issues when working on GMC Acadia models that accept this part number.
Best for: Balanced, all-round buyers who value correct fit, factory-quality replacement parts and want a reliable, hassle-free repair when servicing a GMC Acadia.
Less Ideal for: Drivers building a performance or racing setup who need a lightweight or specially balanced aftermarket flywheel should consider performance-specific options instead.
- Factory-validated design for correct fit and starter engagement
- Machined exterior for a precise mounting surface and balance
- Backed by GM Genuine Parts pedigree for consistent manufacturing quality
- Designed as a stock replacement so it does not offer lightweight or performance-oriented features
Verdict: Choose this GM Genuine Parts flywheel to restore factory-fit drivability with a validated, machined replacement.
2. GM Genuine Parts 12571611 14-Inch LS Flywheel
| Brand | GM Genuine Parts |
|---|---|
| Item model number | 12571611 |
| Exterior | Machined |
| Product type | 14-Inch flywheel |
This GM Genuine Parts 14-inch LS flywheel is a direct-fit, factory-quality replacement intended for GM LS-series applications found in the GMC Acadia lineup that accept this unit. It performs the core job of transferring crankshaft rotation to the transmission bellhousing and clutch assembly while maintaining balance and surface integrity for smooth clutch engagement. The machined exterior and GM validation mean it matches factory fit and bolt patterns, so installation is straightforward for a shop or experienced DIYer during a clutch service. Using a genuine GM part reduces uncertainty about fitment, runout, and longevity compared with generic aftermarket alternatives. The flywheel is a solid, single-piece design, but buyers should confirm ring gear and starter compatibility and expect a professional resurface or inspection if reusing existing clutch components. It is a replacement part rather than a performance-oriented lightweight or dual-mass option, so drivers seeking weight savings or aggressive track behavior should look at specialty performance units instead.
Best for: Performance-oriented GMC Acadia owners who prioritize factory-spec reliability and exact fit during a clutch replacement or drivetrain repair.
Less Ideal for: Drivers seeking a reduced-mass or race-focused flywheel for aggressive track use should consider aftermarket performance units instead.
- Factory-quality part validated by GM for fit and function
- Machined finish for consistent clutch engagement and balanced rotation
- Direct-replacement design simplifies installation during clutch service
- Not designed as a lightweight or performance flywheel for aggressive driving
- No information provided on included ring gear or hardware
- Heavier single-piece construction may not suit track-focused builds
Verdict: Choose this GM Genuine Parts flywheel if you want a factory-quality, direct-fit replacement for the GMC Acadia rather than a specialized lightweight performance unit.
3. Artudatech 168-Tooth Flywheel for GM 4.8/5.3/6.0L LS Swap
| Manufacturer | Artudatech |
|---|---|
| Manufacturer Part Number | C269-A004-A~WH002AMZUS |
| Compatible Engines | GM 4.8L, 5.3L, 6.0L LS-series |
This Artudatech 168-tooth flywheel is a straightforward, factory-quality style replacement intended for GM 4.8, 5.3 and 6.0L LS engines commonly used in GMC Acadia LS-swap or clutch-service applications. Built from high-grade steel with precision machining, it provides the mass and tooth count required for standard starter engagement and consistent crank rotational inertia. Installation is typical for a flywheel replacement during clutch or transmission service and the unit is advertised as easy to install and remove, though professional installation is recommended to ensure proper torque, alignment, and ring gear fitment. Its practical benefit is offering OEM-spec performance and durability at a value-oriented price point for owners doing driveline repairs or engine swaps. Limitations are that detailed installation instructions are not included and the listing does not specify balance condition beyond general precision engineering, so buyers needing a particular balance (factory balanced vs. externally balanced setups) should verify compatibility with their Acadia drivetrain and starter before ordering.
Best for: Practical optimizers looking to maintain or repair a GMC Acadia with an LS-series engine who prioritize a durable, factory-style replacement at a reasonable cost.
Less Ideal for: Drivers seeking a performance or lightweight competition flywheel, or those who need a specifically balanced aftermarket unit tailored to high-power builds should consider other options.
- 168-tooth configuration matches standard starter engagement for compatible GM LS engines
- Constructed from high-grade steel for strength and durability under normal driving loads
- Precision machined to factory-style specifications for straightforward fitment during clutch or transmission work
- No detailed installation instructions included, so professional installation is recommended
- Listing does not explicitly state balance type which may require verification for certain drivetrain setups
Verdict: A practical, steel 168-tooth flywheel that offers factory-style durability and value for GMC Acadia owners doing clutch or LS-swap work, provided compatibility and balance needs are confirmed.
4. ATP Z-406 Automatic Transmission Flexplate
| Material Type | Alloy Steel |
|---|---|
| Fit Type | Vehicle Specific Fit |
| Compatible with Vehicle Type | Passenger Car |
The ATP Z-406 flexplate is a direct-fit replacement designed for automatic-transmission vehicles; it reproduces the original bolt pattern and ring gear teeth so it installs like a factory part. Made from high-grade alloy steel and precision balanced, it aims to restore normal driveline balance and starter engagement after a cracked or damaged flexplate is removed. Typical use is straightforward replacement during transmission or engine work where the flexplate is inspected or replaced; ATP highlights automated welding of the ring gear and counter-weight machining to maintain balance. The practical benefit is getting a budget-friendly, ready-to-install flexplate that should hold up for street use and routine driving. Limitations are that this is a vehicle-specific aftermarket part so fit must be confirmed for the Acadia application, and heavier-duty or performance demands are not the intended use case compared with upgraded specialty units.
Best for: Budget-conscious owners seeking an affordable, factory-style replacement flexplate to restore normal operation after a damaged unit, prioritizing cost-effective OEM-like fit and function.
Less Ideal for: Owners pursuing high-performance drivetrain upgrades or heavy towing who need reinforced or specialty flexplates should consider purpose-built alternatives.
- Balanced to factory specifications to reduce vibration and maintain smooth operation
- Manufactured from high-grade alloy steel for durability
- Reproduces original bolt hole spacing and ring gear teeth for direct fitment
- Automated welding process for consistent ring gear bonding
- Designed for standard replacement use and not intended for high-performance or heavy-duty applications
- Fitment is vehicle-specific so buyers must confirm compatibility before purchase
Verdict: A cost-conscious, factory-style flexplate replacement that restores correct fit and balance for standard automatic-transmission service.
5. GM Genuine Parts 55587031 Engine Flywheel
| Fit Type | Vehicle Specific Fit |
|---|---|
| Manufacturer | ACDelco |
| OEM Part Number | 55587031 |
| Country of Origin | China |
This GM Genuine Parts flywheel is a factory-quality replacement intended for direct fit on compatible GM vehicles, offering the same fit, form, and function validated by General Motors. It is typically used when replacing a worn or damaged flywheel during clutch or transmission service. The unit is machined to OEM-like tolerances and supplied under the GM/ACDelco parts program, which helps ensure reliable engagement and consistent balance for smooth drivability after installation. Because it is manufactured to GM specifications, it simplifies repair decisions for technicians and DIYers who want a component matched to factory requirements. Limitations are minimal for buyers seeking a direct factory-style replacement, but this part is not a performance upgrade and will not change flywheel mass or behavior compared with upgraded aftermarket lightweight or heavy-duty options. Buyers should also ensure correct vehicle-specific fitment and professional installation when replacing drivetrain components.
Best for: Reliability-focused buyers who prioritize factory-spec replacement parts and want a straightforward, proven component for clutch or transmission repairs on a GMC Acadia.
Less Ideal for: Drivers who want performance modifications such as reduced inertia or upgraded clutch behavior should consider purpose-built aftermarket flywheels instead.
- Factory-validated design for fit and function on GM vehicles
- Machined finish consistent with factory replacement standards
- Backed by the GM/ACDelco parts program for traceability and part matching
- Not intended as a performance or lightweight flywheel alternative
Verdict: Choose this GM Genuine flywheel when you want a factory-quality, vehicle-specific replacement for reliable, factory-like drivability on a GMC Acadia.
6. GM Genuine Parts 12555640 Flexplate (Engine Flywheel)
| Manufacturer | ACDelco |
|---|---|
| Brand | GM GENUINE PARTS |
| Exterior | Machined |
| Item model number | 12555640 |
This GM Genuine Parts flexplate is a factory-quality replacement designed, engineered, and tested to GM standards for automatic-transmission drivetrains. It bolts up like a direct-fit service part and has a machined exterior that simplifies installation and alignment during clutch housing and torque converter work. Because it is a genuine GM / ACDelco-derived component, it preserves factory fitment and balancing that help reduce vibration and drivetrain noise compared with a generic aftermarket unit. Typical use is direct replacement when the original flexplate is damaged, cracked, or warped during transmission service or engine removal. The main practical benefits are assured compatibility with GM fastener patterns and a build intended to meet original balancing and durability expectations. Limitations are the single listed part number without multiple gearing or lightweight performance variants and the lack of any supplied hardware or detailed vehicle fitment notes in the listing, so installers should confirm exact model-year fitment before ordering.
Best for: Convenience-driven buyers who want a straightforward, factory-validated replacement that minimizes fitment puzzles and rework during transmission or engine service.
Less Ideal for: Shoppers seeking performance-lightweight flywheels or alternative gearing for modified engines should consider specialty performance manufacturers instead.
- Factory-quality design validated by General Motors for GM vehicles
- Machined exterior for straightforward installation and alignment
- Direct-fit construction preserves factory balance to reduce vibration
- Listing does not include installation hardware or detailed vehicle fitment guidance
- Only a single part variant is shown so no lightweight or performance option is offered
Verdict: Choose this GM Genuine Parts flexplate when you want a direct-fit, factory-validated replacement that matches original GM fitment and balance.
7. GM Genuine Parts 24287452 Engine Flywheel
| Manufacturer | GM Genuine Parts |
|---|---|
| Model | GM Original Equipment |
| Exterior | Machined |
| Manufacturer Part Number | 24287452 |
This GM Genuine Parts flywheel is a direct-fit replacement intended for use in compatible GM powertrains, delivering the mass and surface finish needed to transfer engine torque to the transmission and engage the clutch. It is presented as a machined, factory-quality unit that installs in the bellhousing to restore stock driveline behavior after removal of a worn or damaged flywheel. Typical use is during clutch replacement or engine/transmission service where alignment and balance matter for smooth engagement. The machined exterior and factory part number mean it matches the original fit and mounting pattern, reducing the need for additional machining or hardware. Practical benefits include predictable balance, consistent ring gear seating for starter engagement, and compatibility assurance from a manufacturer-backed GM part. Limitations are inherent to direct-replacement OE parts: it is designed to restore stock performance rather than increase torque capacity or provide performance upgrades, and installation requires proper clutch alignment and professional-level tools for safe handling and torqueing.
Best for: Risk-averse mainstream buyers seeking a factory-replacement part to restore original driveline function after clutch or flywheel failure, prioritizing reliability and fitment confidence.
Less Ideal for: Drivers looking for upgraded or performance flywheels or those wanting to increase torque handling should choose dedicated performance units instead.
- Factory-quality fit and machining for direct replacement
- Designed to match original mounting pattern and balance for smooth clutch engagement
- Includes machined exterior and proper ring gear seating for reliable starter engagement
- Restores stock performance but does not increase torque capacity or offer performance enhancements
- Requires removal of transmission and professional installation tools and skills
Verdict: A factory-quality, direct-fit flywheel that restores original driveline fit and function for compatible GM vehicles.
Choosing the Right GMC Acadia Flywheel: Key Factors to Consider
Fitment and Compatibility
Correct fitment is the first priority because the flywheel must match the Acadia's engine bolt pattern, crank flange, and starter engagement. Using a unit with exact mounting dimensions prevents misalignment that can cause premature wear or starter issues.
Compatibility also covers the correct balance spec for the engine and whether the flywheel is designed for vehicles with manual transmissions or for setups that require a flexplate. Verify the stated engine applications and bolt torque specifications to avoid installation surprises.
Balance and Runout
Balance and runout influence NVH and clutch life. An out-of-balance flywheel transmits vibration into the driveline, which can lead to noise, accelerated bearing wear, and clutch chatter. Look for flywheels that meet tight balance tolerances and include runout specifications.
Manufacturers that test and document dynamic balance reduce the risk of post-install vibration. If resurfacing is planned, minimized runout helps ensure that machining removes material evenly without introducing new imbalance.
Material and Heat Treatment
Flywheels are typically made from forged steel, cast iron, or billet materials, each with tradeoffs in strength, thermal conductivity, and wear characteristics. Heat treatment and surface hardness affect resistance to cracking and hot spots under heavy use or clutch slippage.
Choose a material and finish that align with the intended driving style and duty cycle. Heavier, robust constructions may offer durability for towing and repeated clutch engagement, while lighter options can improve throttle response but may be less tolerant of heat.
Surface Finish and Resurfacing Needs
The mating surface condition directly affects clutch engagement. A properly finished surface reduces glazing and promotes even wear across the friction disc. Some flywheels arrive pre-machined while others may require clutch flywheel resurfacing before installation.
If resurfacing is necessary, confirm allowable material removal limits to avoid weakening the flywheel. A good finish specification and clear resurfacing guidance can simplify installation and improve clutch life.
Starter Gear and Ring Gear Condition
The starter engagement interface must be precise to avoid starter tooth damage and engagement noise. Inspect whether the flywheel includes a new ring gear or whether the original must be transferred. The fit and condition of the ring gear influence starter performance and noise diagnosis related to engagement.
A securely attached ring gear and correct tooth profile reduce the risk of starter skipping and help prevent long-term damage to both the flywheel and starter assembly.
Installation and Serviceability
Installation considerations include bolt pattern orientation, recommended torque sequence and values, and whether special tools are needed. Accessibility of service instructions and clear mounting notes reduce the chance of installation errors that can affect balance and clutch performance.
Also evaluate how the flywheel affects future serviceability, for example whether it allows for straightforward resurfacing or replacement of wear items without extensive disassembly. Units designed for easier service save labor and reduce the chance of installation-related issues.
How We Chose the Best GMC Acadia Flywheel
We focused on characteristics that affect drivability, longevity, and fit for the GMC Acadia. Key evaluation criteria included fitment accuracy to the vehicle and engine variants, balance and runout specifications that influence vibration, material and heat-treatment quality that determine wear resistance, and ring gear and mounting interface design for reliable engagement. We also considered the extent of machining or resurfacing required at installation and the availability of clear installation guidance. Durability indicators such as fatigue-resistant construction and compatible torque capacity were part of the selection filters. Products were excluded if they lacked explicit fitment data for GMC Acadia models, had unclear manufacturing tolerances, or omitted critical mounting specifications. We did not include items with unverified balance or that required undocumented modifications. The resulting list emphasizes flywheels that minimize vibration, offer consistent clutch mating surfaces, and provide straightforward installation paths.
Our full evaluation process is outlined in our review methodology.
FAQ
What are common flywheel symptoms I should watch for on a GMC Acadia?
Common symptoms often include increased vibration at idle or under load, unusual noise during engagement, clutch chatter, or difficulty with smooth shifting. These signs usually point to imbalance, surface wear, or mounting issues, and they often appear gradually.
Can I resurface a worn flywheel instead of replacing it?
Resurfacing is often possible when the wear is limited and the machining will not exceed the manufacturer's allowable material removal. Resurfacing restores a flat, smooth surface, but it is not suitable if there are deep cracks, excessive heat damage, or if material limits would be exceeded.
How does flywheel balance affect drive quality?
Balance directly influences vibration and NVH. A properly balanced flywheel minimizes torsional vibration and reduces stress on bearings and the clutch assembly. Poor balance can cause noticeable vibration, increased wear, and an unpleasant driving feel.
What is involved in replacing a flywheel on a GMC Acadia?
Replacement typically requires removing the transmission or separating it from the engine to access the flywheel. Accurate alignment, correct torque sequencing for mounting bolts, and checking starter engagement are important. Many installations also include inspecting or replacing the clutch and pilot bearing while the transmission is out.
How can I tell if noise is from the flywheel or the starter?
Noise during engine cranking that is intermittent or occurs only during engagement often points to starter tooth contact, while noise that persists after startup and varies with engine speed may indicate flywheel surface or balance issues. A careful inspection of the ring gear and listening tests under controlled conditions can help diagnose the source.
Is a dual mass flywheel necessary for the GMC Acadia?
Whether a dual mass flywheel is appropriate depends on the vehicle's original configuration and the desired NVH characteristics. Dual mass designs reduce torsional vibration but are heavier and may have different service considerations. Match the flywheel type to the vehicle's specified setup and performance needs.
Conclusion
Choosing the right GMC Acadia flywheel comes down to fitment accuracy, balance, and compatible construction that meets your driving demands. Prioritize units with documented balance tolerances, correct mounting specs, and a surface finish suitable for the clutch type you will use. Keep in mind the tradeoffs between durability and weight, and plan for installation and any resurfacing needs before you begin. Focusing on these criteria will help restore smooth drivetrain performance and reduce the risk of repeat service.
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