MOPAR R8000676AG Torque Converter Trans Axle
fits make: Mopar. year: 2010–2014.
( Manufacturer Part Number: R8000676AG ), ( Part Type: Torque Converter Tran Axle ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Make: Jeep ), ( Year: 2010 2011 2012 2013 2014 )
Review MOPAR Genuine Torque Converter Trans axle Package Remanufactured fits 2010–2014
The **Mopar R8000676AG Torque Converter Trans-Axle** is a high-performance, direct-fit replacement for select Chrysler, Dodge, and Jeep vehicles equipped with the iconic 6.1L or 6.4L Hemi V8 engine, particularly those featuring the 8-speed TorqueFlite transmission. Designed to deliver exceptional durability and efficiency, this trans-axle assembly combines a robust **R8000676AG torque converter** with a precision-engineered trans-axle housing, ensuring seamless power transfer and optimal drivetrain performance. The torque converter is engineered with advanced fluid dynamics, featuring a **multi-plate clutch system** and a **spiral-bevel gear design** to maximize torque multiplication while minimizing slippage, making it ideal for both towing heavy loads and aggressive driving conditions. The trans-axle housing itself is crafted from high-strength aluminum, reducing weight without compromising structural integrity, which enhances fuel efficiency and handling responsiveness. This unit is fully compatible with vehicles such as the **2011 2013 Dodge Challenger SRT8, 2011 2014 Dodge Charger SRT8, 2011 2013 Jeep Grand Cherokee SRT8, and 2011 2013 Dodge Durango SRT8**, ensuring a perfect fit for enthusiasts seeking a reliable upgrade or replacement. Whether restoring a classic muscle car or upgrading a modern performance vehicle, the Mopar R8000676AG trans-axle delivers the strength, precision, and reliability expected from a brand synonymous with American automotive engineering. Built to meet or exceed OEM specifications, this component is backed by Mopar s reputation for quality, offering a seamless integration with the drivetrain while providing the robustness needed for high-performance applications.
The **Mopar R8000676AG Torque Converter and Trans-Axle** (commonly used in Mopar A833 and A904 automatic transmissions) is a popular aftermarket upgrade for performance and durability. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.
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### **Pros of the Mopar R8000676AG Torque Converter & Trans-Axle**
1. **Enhanced Performance**
- The torque converter is designed for higher torque applications, improving acceleration and towing capacity. It features a larger stator and improved clutch packaging, which helps with smoother shifts and better power transfer.
- The trans-axle (if included) is built to handle increased stress, reducing the risk of internal damage under heavy loads.
2. **Compatibility with Mopar Transmissions**
- This unit is specifically engineered for Mopar A833 (4-speed) and A904 (5-speed) transmissions, ensuring a seamless fit without major modifications.
- It is widely used in performance builds, including muscle cars, trucks, and towing applications, making it a trusted choice among Mopar enthusiasts.
3. **Durability and Longevity**
- The torque converter is constructed with high-quality materials, including a sturdy stator and reinforced clutch, which can withstand prolonged use under demanding conditions.
- The trans-axle (if part of the package) is often reinforced to handle higher torque loads, reducing wear on the transmission internals.
4. **Ease of Installation**
- Designed to be a drop-in replacement, this unit requires minimal modifications to install. It is compatible with stock Mopar transmission housings, making it accessible for DIY enthusiasts.
- Many users report that installation is straightforward, especially with the right tools and basic mechanical knowledge.
5. **Positive User Feedback**
- The R8000676AG is frequently praised in forums and reviews for its reliability and performance improvements. Many owners report better shift quality, reduced stalling, and improved towing ability compared to stock converters.
- It is a popular choice for builds involving the Mopar 426 Hemi, 410/426 Magnum, and other high-torque engines.
6. **Cost-Effective Upgrade**
- While it is not the cheapest torque converter on the market, it offers a good balance between performance and price, especially when compared to high-end aftermarket options.
- It can extend the life of your transmission by reducing stress on internal components, potentially saving money on repairs in the long run.
---
### **Cons of the Mopar R8000676AG Torque Converter & Trans-Axle**
1. **Limited to Mopar Transmissions**
- This unit is **not compatible** with non-Mopar transmissions (e.g., Ford, GM, or Chrysler non-Mopar units). If you re working with a different transmission, you ll need a different converter.
- The trans-axle (if included) is specifically designed for Mopar A833/A904 applications, so it won t fit other transmission models.
2. **Potential for Overkill in Lower-Torque Applications**
- If your engine produces relatively low torque (e.g., a stock 318 V8 or a lightly modified 360), the R8000676AG may be **too aggressive** for daily driving. The larger converter can cause sluggishness at low RPMs and may require adjustments to the transmission s shift points.
- Some users report that the converter is "too big" for their application, leading to a "spongy" feel in normal driving conditions.
3. **Requires Proper Tuning**
- To fully utilize the converter s potential, you may need to adjust the transmission s shift solenoids or use a performance tuner (e.g., Haltech, AEM, or Mopar s own tuning software).
- Without proper tuning, the converter can cause harsh shifts or poor throttle response, negating its benefits.
4. **Weight Considerations**
- The torque converter is heavier than stock units, which can slightly increase drivetrain stress, especially in rear-wheel-drive applications.
- The added weight may also affect fuel economy marginally, though the impact is usually minimal.
5. **Potential for Stalling in Cold Weather**
- Larger torque converters can struggle with **cold starts** and may stall if the engine isn t warmed up properly. This is more common in very cold climates.
- Some users report that they need to use a **starter assist device** or modify the converter s stall speed to prevent stalling.
6. **Limited Availability of Spare Parts**
- While the converter itself is widely available, finding **specific replacement parts** (e.g., stator bearings, clutch packs) can be difficult compared to OEM units.
- If the converter fails, sourcing exact replacements may require ordering from specialty suppliers.
7. **Not a Universal Fix for Transmission Issues**
- If your transmission is already damaged (e.g., worn bearings, leaking seals, or internal gear failure), replacing just the torque converter **won t fix those problems**. A full transmission rebuild may still be necessary.
- The R8000676AG is an upgrade, not a repair it assumes your transmission is in decent condition.
---
### **Conclusion**
The **Mopar R8000676AG Torque Converter and Trans-Axle** is a **strong, performance-oriented upgrade** for Mopar A833 and A904 transmissions, particularly in high-torque applications like muscle cars, towing setups, or heavily modified engines. Its benefits in terms of durability, power handling, and compatibility with Mopar systems make it a **reliable choice** for enthusiasts who prioritize performance over daily drivability.
However, it is **not ideal** for low-torque applications, requires proper tuning to avoid issues, and may cause stalling in cold weather if not managed correctly. Additionally, its Mopar-specific nature limits its usefulness outside of Chrysler/Dodge applications.
If you re running a **high-performance Mopar engine (e.g., 426 Hemi, 410/426 Magnum, or a heavily modified 360/383)**, this converter is an excellent investment. For **stock or lightly modified setups**, a smaller, more responsive converter (such as a **Mopar R8000675AG** or an aftermarket unit like **Haynes or Carter**) may be a better fit.
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### **Recommendation**
- **Buy the R8000676AG if:**- You have a **Mopar A833 or A904 transmission**.
- Your engine produces **high torque** (e.g., 426 Hemi, 410/426 Magnum, or a modified 360/383 with 400 lb-ft).
- You plan to **tune your transmission** to match the converter s characteristics.
- You prioritize **durability and towing capability** over daily drivability.
- **Avoid the R8000676AG if:**- You re running a **low-torque engine** (e.g., stock 318, 360, or a lightly modified 302).
- Your transmission is **already failing** and needs a full rebuild.
- You **don t want to tune or modify** your transmission s shift points.
- You re working with a **non-Mopar transmission** (e.g., Ford AOD, GM TH350).
- **Alternatives to Consider:**- For **high-torque Mopar builds**, the **R8000676AG is a great choice**, but ensure you have a **performance tuner** (e.g., Haltech, AEM) to optimize shifts.
- For **lower-torque applications**, a **smaller converter** (e.g., **Mopar R8000675AG** or **Haynes 1050**) may provide better throttle response.
- If you need **better cold-weather performance**, consider a **starter assist device** or a **modified converter with a lower stall speed**.
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**Final Verdict:** The **Mopar R8000676AG is a solid, high-performance upgrade** for the right application, but it demands proper tuning and is best suited for serious Mopar enthusiasts pushing their vehicles to higher torque levels. For casual or low-torque builds, a more balanced converter may be preferable.
Details:
Electrical parts are not returnable. If you would like to return your new, unopened, and uninstalled part. 1.Parts must be resalable and in the original packaging.
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part #: r8000676ag prices
- $2879.99-$8943.05
specifications autotransmissionsgo:
- for makes: Mopar
- for years: 2010-2014
- mpn: R8000676ag
- part type: Torque Converter Tran Axle
- genuine oem: Yes
- manufacturer warranty: 1 Year
- fitment type: Direct Replacement
- make: Jeep
- year: 2010 2011 2012 2013 2014
seller autotransmissionsgo:
- # reviews: 4808
- city: Pompano Beach, Florida
- rating: 99.7%
returns autotransmissionsgo:
- policy: Returns Accepted
- paid by: Seller
- time: 30 Days
offer autotransmissionsgo:
- availability: In Stock
- quantity: 1
- sold: 0
- started: May 7, 2026
- options: Ship-to-home
general autotransmissionsgo:
- condition: Remanufactured
- Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission
shipping autotransmissionsgo:
- type: Fixed
- service: Flat Rate Freight
- cost: $402.50
- class: Freight
payments autotransmissionsgo:
- other
- wallet: Apple-pay
- credit card: Diners-club
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