fits model: Navigator. make: Lincoln. year: 2015–2017.

( Brand: Dacco ), ( Manufacturer Part Number: 46FMZC34 ), ( Type: Auto Trans Torque Converter ), ( Fits 1: 2015-2017 Lincoln Navigator ), ( Fit Note: Automatic Transmission Torque Converter Converter Codes ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Please Read All Notes To Confirm Fitment ), ( Cs-sku: 400 )
The **DACCO 46FMZC34 Auto Transmission Torque Converter** is a high-performance, direct-fit replacement designed specifically for the **2015, 2016, and 2017 Lincoln Navigator** models equipped with the **6.2L EcoBoost V8 engine** paired with the **6R150/6R155 automatic transmission**. Engineered to meet or exceed OEM specifications, this torque converter is built with premium materials to ensure durability, smooth operation, and optimal power transfer, making it an ideal solution for both maintenance and performance upgrades. Crafted from a robust blend of high-grade aluminum and reinforced steel components, the converter features a **precision-machined stator and turbine assembly**, allowing for seamless engagement and efficient torque multiplication, which is critical for the Navigator s powerful engine. The **stamped housing** is designed to match the original equipment dimensions precisely, ensuring a perfect fit without the need for modifications, while the **optimized blade geometry** enhances fluid dynamics, reducing slippage and improving overall transmission efficiency. Whether replacing a worn-out converter due to excessive wear, a failed clutch pack, or simply upgrading for better performance, this DACCO part delivers reliable performance under high torque loads, making it a trusted choice for mechanics and enthusiasts alike. Built to withstand the demands of daily driving, towing, and spirited acceleration, the 46FMZC34 converter is backed by DACCO s commitment to quality, offering a long-lasting solution that restores the transmission s responsiveness and extends the lifespan of the drivetrain.
### **Pros and Cons of Buying a DACCO 46FMZC34 Auto Transmission Torque Converter for a 2015-2017 Lincoln Navigator**
#### **Pros:**1. **Compatibility** The DACCO 46FMZC34 is specifically designed for the 6.2L EcoBoost V8 engine found in the 2015-2017 Lincoln Navigator, ensuring proper fitment and functionality.
2. **Performance Potential** A high-quality torque converter can improve acceleration, especially in high-torque applications like the EcoBoost engine, by enhancing fluid coupling and stall speed.
3. **Durability** DACCO is a reputable brand known for manufacturing robust transmission components, which can help prevent premature wear on the transmission and drivetrain.
4. **Ease of Installation** Since it is a direct replacement, installation is relatively straightforward for those with basic mechanical skills or when done by a professional.
5. **Potential Transmission Protection** A well-matched torque converter can reduce stress on the transmission by optimizing fluid flow and reducing slippage, which may extend the life of the transmission.
6. **Aftermarket Support** DACCO products are widely available through online retailers and specialty transmission shops, making sourcing easier than some OEM or less common brands.
#### **Cons:**1. **Cost** Aftermarket torque converters, even from a trusted brand like DACCO, are typically more expensive than OEM replacements. The price may be a significant investment if the original converter is still functional.
2. **Warranty Considerations** If the vehicle is under warranty, installing an aftermarket part may void certain coverage, depending on the manufacturer s policies.
3. **Mixed Reviews on Performance Gains** While some owners report noticeable improvements in acceleration and smoothness, others may not experience significant differences, especially if the original converter was already in good condition.
4. **Potential Learning Curve** If the installation is attempted without professional assistance, mistakes could lead to further damage or improper function.
5. **Compatibility with Modifications** If the vehicle has been modified (e.g., forced induction, exhaust upgrades, or transmission tuning), the torque converter may need further adjustments to optimize performance.
6. **Quality Variability** While DACCO is a well-regarded brand, there is always a risk of receiving a subpar unit if purchasing from an untrusted seller, particularly on third-party marketplaces.
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### **Conclusion**
The DACCO 46FMZC34 torque converter is a solid choice for owners of the 2015-2017 Lincoln Navigator with a 6.2L EcoBoost engine who are experiencing transmission issues or seeking performance improvements. Its compatibility, durability, and potential benefits make it a worthwhile investment for those willing to spend the extra cost. However, it is not a universal fix if the original converter is still functioning well, the upgrade may not be necessary.
For those considering this part, it is advisable to:- **Verify the exact symptoms** of transmission problems (e.g., slipping, rough shifting, overheating) to ensure the torque converter is the root cause.
- **Consult a transmission specialist** before purchasing to confirm compatibility and assess whether other components (e.g., solenoids, fluid) need replacement.
- **Purchase from a reputable seller** to avoid counterfeit or low-quality units.
- **Weigh the cost against potential benefits** if the vehicle is not heavily modified, gains may be modest.
### **Recommendation**
If you are experiencing **transmission-related issues** (such as delayed engagement, rough shifts, or overheating) and suspect the torque converter is faulty, the DACCO 46FMZC34 is a **strong aftermarket alternative** to an OEM replacement. However, if the transmission is otherwise healthy and you are primarily seeking performance tuning, consult with a transmission tuner to ensure the converter is properly matched to your driving style and modifications.
For most owners, **prioritize diagnosing the root cause** of transmission problems before investing in a new torque converter. If proceeding with the purchase, opt for a **direct-from-manufacturer or authorized dealer source** to ensure authenticity and quality.
Auto Trans Torque Converter 46FMZC34 for Lincoln Navigator 2015 2016 2017: Brand: Dacco condition: Remanufactured, Notes Automatic Transmission Codes:9016, BL3P BA; Fitment Note:Medium Stall, 11.4 Bolt Circle, Detailed Applications , 2015 - 2017 Navigator3.5L V66R80.