DACCO 49357ZKDK Auto Trans Torque Converter

( Brand: Dacco ), ( Manufacturer Part Number: 49357ZKDK ), ( Part Type: Torque Tran Converter ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Automatic Transmission Torque Converter Converter Codes, . ), ( Years: 2014 2010 2011 2012 2013 2015 2016 ), ( Application: Buick Lacrosse Auto Trans Torque Converter ), ( Product Name 2: Automatic Transmission Torque Converter ), ( Cs-sku: 400 )

Review DACCO Buick Auto Trans Torque Converter fits LACROSSE 2010–2016

The **DACCO 49357ZKDK Torque Converter** is a high-performance, direct-fit replacement designed specifically for the **2010-2016 Buick Lacrosse** equipped with an **automatic transmission**, ensuring seamless power transfer and optimal drivability. Engineered to meet or exceed OEM specifications, this torque converter is crafted from premium materials, including a **high-strength steel housing** and a **durable one-way clutch**, to withstand the demanding torque demands of the GM 6T40, 6T45, and 6T70 transmissions found in these models. The **2014 and 2011 variants** in particular benefit from its precision-engineered **stator and pump assembly**, which enhances fluid circulation for smoother shifts and improved fuel efficiency, reducing the risk of overheating and transmission wear over time.

What sets this torque converter apart is its **robust locking mechanism**, which ensures a secure connection between the transmission and the engine, minimizing slippage and maximizing power delivery critical for maintaining the Buick Lacrosse s signature blend of comfort and performance. The **optimized blade design** within the pump enhances fluid flow, reducing drag and improving shift responsiveness, whether you're cruising on the highway or navigating city traffic. Additionally, the **sealed bearing assembly** is engineered to last, reducing friction and extending the lifespan of both the converter and the transmission itself.

For those who demand reliability without compromise, the DACCO 49357ZKDK is a **direct bolt-on replacement**, eliminating the need for custom modifications or additional machining. Its **universal compatibility** with the specified Buick Lacrosse models ensures a hassle-free installation, saving time and labor costs while delivering performance on par with factory specifications. Whether you're restoring a classic or maintaining a high-mileage vehicle, this torque converter is built to handle the rigors of daily driving, providing peace of mind with every shift. Upgrade your transmission s performance today with a component that balances durability, efficiency, and precision engineering.

### **Pros and Cons of Buying a Dacoco Part Number 49357ZKDK (2010 2016 Buick Lacrosse Automatic Transmission Torque Converter)**

#### **Overview**

The **Dacoco 49357ZKDK** is a replacement torque converter for the **GM 6T70/6T75 automatic transmission** found in **2010 2016 Buick Lacrosse** models with automatic transmissions. This part is designed to replace the stock torque converter if it fails, leading to symptoms like **hard shifting, slipping, overheating, or complete transmission failure**.

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### **Pros of Buying This Part**

1. **OEM Compatibility**

- Dacoco is a reputable aftermarket supplier that produces parts designed to match **OEM specifications**. The **49357ZKDK** is engineered to fit the **6T70/6T75 transmission** in the Buick Lacrosse, ensuring proper function without modification.

2. **Improved Performance Over Stock**

- Many aftermarket torque converters (including Dacoco s) are **stiffer and more durable** than the stock unit, reducing **slippage** and improving **shift quality**. Some models include **enhanced clutch materials** for better heat resistance.

3. **Cost-Effective Alternative to Full Transmission Rebuild**

- Replacing just the torque converter is **far cheaper** than a full transmission overhaul (which can cost **$1,500 $3,000 **). A torque converter typically ranges from **$300 $600**, making it a **budget-friendly fix** for transmission issues.

4. **Warranty Coverage**

- Dacoco offers a **limited warranty** (usually **12 24 months**) on their torque converters, providing some protection against premature failure. This is more than what many budget brands offer.

5. **Easy Installation**

- Unlike a full transmission swap, replacing a torque converter is a **relatively straightforward job** for a **mechanic with basic transmission experience**. It requires **removing the transmission pan, fluid, and old converter**, then installing the new one typically a **4 6 hour job**.

6. **Prevents Further Transmission Damage**

- A failing torque converter can **drag the transmission**, causing **internal wear** on the **valve body, planetary gears, or clutch packs**. Replacing it early can **extend the life of the transmission** and avoid a **full rebuild**.

7. **Available from Trusted Suppliers**

- Dacoco is a **well-known brand** in the aftermarket, with parts sold through **rockauto, Amazon, eBay, and specialty transmission shops**. This ensures **availability** and **authenticity** compared to no-name brands.

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### **Cons of Buying This Part**

1. **Potential for Inconsistent Quality**

- While Dacoco is a **reputable brand**, **aftermarket torque converters can still vary in quality** depending on the **batch and supplier**. Some units may have **weaker clutch materials** or **poor balancing**, leading to **early wear or failure**.

2. **Requires Professional Installation**

- If installed **incorrectly**, a torque converter can **cause more harm than good**. Improper **fluid levels, torque converter bolt torque, or misalignment** can lead to **transmission damage**. A **DIY attempt without experience** is **not recommended**.

3. **May Not Fix Underlying Transmission Issues**

- If the **transmission itself is failing** (e.g., **worn solenoids, bad valve body, or damaged gears**), replacing just the torque converter **will not solve the problem**. The issue may **recur or worsen** if the root cause isn t addressed.

4. **Limited Longevity Compared to OEM**

- While aftermarket converters are **often more durable than stock**, they **may not last as long as an OEM unit** in extreme conditions (e.g., **heavy towing, aggressive driving, or frequent overheating**).

5. **Fluid Must Be Changed**

- A torque converter replacement **requires a full transmission fluid flush** to remove **old debris and contaminants**. Neglecting this can **reduce the lifespan of the new converter**.

6. **Potential for Counterfeit or Mismatched Parts**

- Buying from **unverified sellers** (especially on eBay or Facebook Marketplace) increases the risk of **receiving a fake or incorrect part**. Always **check the seller s reputation** and **verify the part number**.

7. **May Not Be Available for All Years**

- While the **49357ZKDK fits 2010 2016 Buick Lacrosse**, **some variations** (e.g., **different torque converter sizes for different engine setups**) may require **double-checking compatibility**. Always **confirm with the seller or manufacturer**.

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### **Conclusion & Recommendation**

#### **Should You Buy the Dacoco 49357ZKDK?**

You have **confirmed transmission issues** (slipping, hard shifts, overheating) **directly linked to the torque converter**.

You are **getting it installed by a trusted mechanic** who specializes in **automatic transmissions**.

You are **also changing the transmission fluid** during installation.

You **verify the part number and seller authenticity** to avoid counterfeits.

You are **prepared for potential underlying transmission problems** (e.g., **valve body replacement, solenoid issues**).

The transmission has **other major issues** (e.g., **leaking seals, damaged gears**) that would require a **full rebuild**.

You are **attempting DIY installation** without proper experience.

You are **buying from an untrusted source** with no warranty or return policy.

You **ignore fluid changes** after installation.

#### **Best Practices Before Purchase**

1. **Diagnose the Problem First**

- **Transmission fluid check** (burnt smell, dark color, metal particles).

- **Scan tool reading** (check for **torque converter clutch engagement issues**).

- **Mechanic inspection** (some shops offer **free diagnostics**).

2. **Choose a Reputable Seller**

- Buy from **rockauto, Amazon, or a trusted local transmission shop** rather than random online marketplaces.

- **Check reviews** and **warranty terms** before purchasing.

3. **Consider a Full Transmission Service**

- If the transmission is **older or has multiple issues**, a **torque converter replacement alone may not be enough**. A **full service (fluid change, filter, inspection)** is recommended.

4. **Budget for Potential Additional Repairs**

- If the transmission has **hidden damage**, you may need to **spend more later**. Set aside **$500 $1,000** for **unexpected repairs**.

5. **Alternative Options**

- If cost is a concern, **compare prices** with other brands like **AAMCO, Carter, or Mopar** (for GM vehicles).

- If the transmission is **severely damaged**, **consider a rebuilt unit** (sometimes cheaper than parts-only replacement).

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### **Final Recommendation**

- The **transmission is otherwise healthy**.

- The **installation is done professionally**.

- The **transmission fluid is freshened or changed**.

**If the transmission has other issues**, a **full rebuild or service** may be more cost-effective in the long run. **Always prioritize proper diagnosis and installation** to avoid wasting money on a temporary fix.

Would you like help finding a **reputable mechanic** or **alternative part options**?

Details:

Parts Geek - For 2010 - 2016 Buick LaCrosse Auto Trans Torque Converter 49357ZKDK 2014 2011: Review Fitment Notes to Ensure Proper Fit condition: Remanufactured Brand: Dacco Notes: Automatic Transmission Codes:7G, 7G6, 7G7, 9A8; Note:4 Mounting Pads Stepped 12 Month Warranty Vehicle: Engine: Transmission: 2012 - 2016 LaCrosse3.6L V66T40, LaCrosse2.4L 4 Cyl6T70, V66T70.

specifications torquconv:

• for models: Lacrosse
• for makes: Buick
• for years: 2010-2016
• brand: Dacco
• mpn: 49357zkdk
• part type: Torque Tran Converter
• manufacturer warranty: 12 Month Warranty
• notes: Automatic Transmission Torque Converter Converter Codes, .
• years: 2014 2010 2011 2012 2013 2015 2016
• application: Buick Lacrosse Auto Trans Torque Converter
• product name 2: Automatic Transmission Torque Converter
• cs-sku: 400

general torquconv:

• condition: Remanufactured
• Car Truck Parts Accessories > Transmission Drivetrain > Torque Converters

seller torquconv:

• rating: 98.8%
• # reviews: 328555
• city: Rockville Centre, New York

offer torquconv:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1
• started: April 16, 2026

payments torquconv:

• credit card: Mastercard
• wallet: Apple-pay
• other

returns torquconv:

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

shipping torquconv:

• transit: 3-7 Days
• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• class: Standard
• type: Fixed
• cost: $0.00

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