1. Automatic Transmissions Products
  2. sku: 23159818716547983
  3. GM 19366954

GM 19366954 Automatic Transmission 6-SPEED

fits model: Acadia. year: 2017–2019.

19366954 Gm Genuine 6-speed Automatic Transmission Assembly Remanufactured

( Brand: Gm ), ( Manufacturer Part Number: 19366954 ), ( Part Type: Transmission ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Gmc ), ( Year: 2017 2018 2019 ), ( Parts Included: Only Part Reference 0 On The Diagram Is Included ), ( Replaces Part Number: 24260800 )

Review GM Genuine 6-speed Automatic Transmission Assembly Remanufactured fits ACADIA 2017–2019

The **GM 19366954 6-Speed Automatic Transmission** is a high-performance, precision-engineered drivetrain solution designed to deliver seamless shifting, enhanced fuel efficiency, and robust durability for modern vehicles. Built upon General Motors advanced transmission technology, this six-speed automatic transmission incorporates a sophisticated planetary gearset architecture, optimized for both passenger cars and light-duty trucks. Its compact yet robust design ensures efficient power transfer while minimizing weight, contributing to improved vehicle dynamics and handling. The transmission features a **torque converter** with a multi-plate clutch system, allowing for smooth acceleration and responsive engagement, even under heavy loads. Engineered with **direct-shift technology**, this transmission reduces shift times and eliminates the traditional "thunk" associated with older automatic systems, providing a near-manual driving experience without sacrificing comfort.

The **19366954** incorporates a **hydraulic valve body** with precision-calibrated solenoids and a **computer-controlled shift strategy**, ensuring optimal gear selection based on driving conditions, throttle input, and vehicle speed. This adaptive shifting not only enhances performance but also improves fuel economy by maintaining the engine in its most efficient operating range. The transmission s **wet clutch system** and **multi-disc torque converter** are designed to withstand high torque loads, making it ideal for applications requiring durability, such as SUVs, crossovers, and performance-oriented vehicles. Additionally, its **sealed and filtered lubrication system** helps extend service intervals and reduces maintenance requirements, contributing to long-term reliability.

For serviceability and diagnostics, the **19366954** is equipped with **OBD-II compatibility**, allowing for advanced fault code reading and real-time monitoring through GM s diagnostic tools. The transmission s **aluminum housing** and **high-strength steel components** provide structural integrity while keeping weight in check, supporting overall vehicle efficiency. Whether integrated into a front-wheel-drive or rear-wheel-drive platform, this transmission delivers a balance of power, precision, and longevity, making it a dependable choice for both OEM applications and aftermarket upgrades. Built to meet stringent industry standards, it ensures consistent performance across a wide range of driving scenarios, from city commuting to highway cruising and spirited acceleration.

### Pros and Cons of Buying a Vehicle with GM 19366954 6-Speed Automatic Transmission

#### Overview

The GM 19366954 is a 6-speed automatic transmission commonly found in General Motors vehicles, particularly in models like the Chevrolet Impala, Malibu, and some SUVs from the late 2000s to early 2010s. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **Smooth Shifting Performance**

The 6-speed automatic transmission is generally known for its relatively smooth shifting compared to older 4-speed or 5-speed automatics. It provides a more refined driving experience, especially in modern applications where it was paired with more advanced engine control systems.

2. **Better Fuel Efficiency**

A 6-speed transmission allows for more efficient gearing, enabling the engine to operate at optimal RPM ranges for better fuel economy. This is particularly noticeable in vehicles equipped with V6 or smaller V8 engines where the transmission helps keep the engine in its power band.

3. **Durability and Reliability (in Well-Maintained Examples)**

When properly maintained, this transmission can be quite durable. Many owners report few issues if regular fluid changes (every 30,000 60,000 miles) and inspections are performed. The 6-speed design is generally more robust than older 4-speed automatics, which were prone to slipping or premature wear.

4. **Compatibility with Modern Engines**

The GM 19366954 transmission was designed to work well with a variety of engines, including the popular LT1, LFX, and LFX-V6 engines. This makes it a versatile choice for buyers looking for a balance between performance and efficiency.

5. **Lower Maintenance Costs Compared to Some Alternatives**

While not immune to issues, the 6-speed transmission is often cheaper to repair than more complex transmissions (e.g., dual-clutch or continuously variable automatics). Parts are widely available, and labor costs are typically reasonable.

6. **Good for Highway Driving**

The 6-speed transmission excels in highway conditions, where its ability to maintain higher RPMs without excessive shifting reduces strain on the engine and improves overall efficiency.

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### **Cons**

1. **Potential for Transmission Fluid Leaks**

One of the most common issues with this transmission is fluid leaks, often stemming from worn seals, gaskets, or a faulty transmission cooler. Leaks can lead to low fluid levels, which cause slipping, rough shifting, or complete failure if ignored. Regular fluid checks are essential.

2. **Slipping or Hesitation**

If the transmission fluid is old or contaminated, or if internal components (such as bands or clutches) wear out, the transmission may slip or hesitate during acceleration. This is a serious issue that often requires a rebuild or replacement.

3. **Electrical or Sensor Problems**

The GM 19366954 transmission relies on various sensors (e.g., speed sensors, torque converter clutch solenoid) to function correctly. Failures in these sensors can cause erratic shifting, failure to engage gears, or the transmission to get stuck in "limp mode." Replacing faulty sensors can be costly.

4. **Torque Converter Issues**

The torque converter in this transmission can wear out over time, leading to slipping or failure to engage properly. Replacing a torque converter is a labor-intensive and expensive repair, often costing $1,000 or more.

5. **Rough or Jerky Shifting**

Some owners report that the transmission can develop rough or jerky shifts, particularly under heavy loads or during cold starts. This is often due to worn clutches, bands, or solenoid issues. A transmission rebuild may be necessary to resolve this.

6. **Limited Availability of Parts and Specialists**

While parts are generally available, finding a mechanic with extensive experience specifically with the GM 19366954 transmission can be challenging. This may lead to higher repair costs or delays in service.

7. **Potential for Internal Wear**

Like all transmissions, the GM 19366954 is subject to wear over time. Internal components such as the reverse idler gear, planetary gears, and clutches can degrade, leading to grinding noises, delayed engagement, or failure to shift properly. Regular maintenance can mitigate some of these risks, but wear is inevitable with high mileage.

8. **Compatibility with Modern Vehicles**

While this transmission is found in relatively modern vehicles (late 2000s to early 2010s), it is not as advanced as newer transmissions (e.g., 8-speed automatics). This means it may lack some of the refinements and efficiency benefits of more recent designs.

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### **Ending Conclusion**

The GM 19366954 6-speed automatic transmission offers several advantages, including smooth shifting, improved fuel efficiency, and durability when well-maintained. It is a solid choice for buyers looking for a reliable automatic transmission in older GM vehicles, particularly if they are prepared to invest in regular maintenance. However, it is not without its drawbacks. Common issues such as fluid leaks, slipping, electrical problems, and wear over time can lead to costly repairs if not addressed promptly. Buyers should be prepared for potential maintenance challenges and should thoroughly inspect the transmission history and condition before purchasing.

---

### **Recommendation**

If you are considering a vehicle with the GM 19366954 transmission, follow these steps to minimize risks and maximize value:

1. **Verify Maintenance History**

Ensure the vehicle has a complete service history, particularly for transmission fluid changes. Regular fluid changes (every 30,000 60,000 miles) are critical to the longevity of the transmission. Ask for proof of fluid changes and any repairs related to the transmission.

2. **Check for Fluid Leaks**

Inspect the transmission pan, cooler lines, and seals for signs of leaks. Fresh, clean transmission fluid should be reddish and free of debris or a burnt smell. Dark, gritty, or burnt-smelling fluid is a red flag.

3. **Test Drive and Listen for Issues**

During a test drive, pay attention to shifting smoothness. Jerky or delayed shifts, slipping, or unusual noises (grinding, whining, or clunking) are signs of potential problems. The transmission should shift smoothly without hesitation.

4. **Review Service Records for Repairs**

Ask the seller or dealer about any past transmission repairs, such as torque converter replacements, solenoid issues, or rebuilds. A history of minor repairs is normal, but frequent or major repairs should raise concerns.

5. **Consider a Pre-Purchase Inspection**

Have a trusted mechanic perform a pre-purchase inspection (PPI) to assess the condition of the transmission. A PPI can uncover hidden issues and provide peace of mind before making a purchase.

6. **Budget for Potential Repairs**

Be prepared for potential transmission-related expenses. While some vehicles with this transmission may require no major repairs, others could need a rebuild or replacement, which can cost between $2,000 and $4,000 or more, depending on labor rates and parts.

7. **Prioritize Low-Mileage Examples**

If possible, opt for a vehicle with lower mileage (under 100,000 miles) and a well-documented maintenance history. Lower mileage increases the likelihood that the transmission is in good condition.

8. **Compare with Alternatives**

If you are open to other options, consider vehicles with newer transmissions (e.g., 8-speed automatics) if budget allows. While these may come with a higher upfront cost, they often offer better reliability and efficiency in the long run.

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**Final Verdict:**

The GM 19366954 6-speed automatic transmission is a viable choice for buyers who prioritize reliability, fuel efficiency, and smooth shifting in a well-maintained vehicle. However, it requires diligent maintenance and careful consideration before purchase. For buyers who are prepared to invest time and effort into upkeep, it can be a solid and enjoyable transmission. Those who prefer lower maintenance risks or are open to newer technology may find more modern alternatives more appealing. Always prioritize a thorough inspection and maintenance history to ensure a trouble-free ownership experience.

Details:

Bring it to Classic Buick GMC Arlington ensure the job is completed correctly. Electrical parts are not returnable. Classic Buick GMC Arlington sponsors The US Marines Toys for Tots, youth football teams, Martin High School programs, breast cancer prevention research, charity golf tournaments and many other charitable organizations. Classic Buick GMC Arlington hassle ASE and GM Certified Technicians one World Class technician.

We serve the cities of ARLINGTON, Dallas, Fort Worth and surrounding communities. For extended work orders, rental cars are available. Your vehicles safety and performance are nothing to gamble on. Financing here is easy and convenient.

Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Genuine GM 6-Speed Automatic Transmission Assembly, Remanufactured 19366954:: Acadia. Parts must be resalable and in the original packaging.

part #: 19366954 price

  • $6460.14

specifications autotransmissionsgo:

  • for models: Acadia
  • for years: 2017-2019
  • brand: Gm
  • mpn: 19366954
  • part type: Transmission
  • genuine oem: Yes
  • manufacturer warranty: 1 Year
  • fitment type: Direct Replacement
  • make: Gmc
  • year: 2017 2018 2019
  • parts included: Only Part Reference 0 On The Diagram Is Included
  • replaces part number: 24260800

returns autotransmissionsgo:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted

payments autotransmissionsgo:

  • wallet: Paypal
  • credit card: Mastercard
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offer autotransmissionsgo:

  • quantity: 1
  • availability: In Stock
  • started: March 14, 2026
  • sold: 0
  • options: Ship-to-home

shipping autotransmissionsgo:

  • class: Freight
  • service: Flat Rate Freight
  • type: Fixed
  • cost: $828.93

general autotransmissionsgo:

  • condition: New
  • Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission

seller autotransmissionsgo:

  • rating: 99.1%
  • city: Arlington, Texas
  • # reviews: 342
for models: acadia, for years: 2017-2019, part type: transmission, genuine oem: yes, manufacturer warranty: 1 year, fitment type: direct replacement, year: 2017 2018 2019, parts included: only part reference 0 on the diagram is included, replaces part number: 24260800,
manufacturer: gmc, category: auto parts > car truck parts accessories > transmission drivetrain > automatic transmission, sku: 23159818716547983,
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1 offer $6460.14 USD
  • Remanufactured. Offer #1 priced at $6460.14 + $828.93 shipping estimate = $7289.07* total. Classic Buick GMC Arlington hasall ASE and GM Certified Technicians and one World Class technician 3.6l.+$828.93 shipping

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