INFINITI 31100-39X0A Automatic Transmission Torque Converter Q50 Q60

( Manufacturer Part Number: 31100-39X0A ), ( Items Included: - ), ( Vintage Part: No ), ( Type: Automatic Transmission ), ( Manufacturer Warranty: 1 Month ), ( Country Of Origin: Japan ), ( Performance Part: Yes )

Review INFINITI Q50 Q60 Automatic Transmission Torque Converter Assy Oem fits RWD 2016–2024

The **Infiniti Q50/Q60 16-24 Speed Automatic Transmission Torque Converter (Part Number: 31100-39X0A)** is a high-performance, precision-engineered component designed exclusively for Infiniti s flagship V6-powered models, including the Q50 and Q60, both in rear-wheel-drive (RWD) configurations. This torque converter is a critical element of the **Q50/Q60 s 7-speed automatic transmission (7ATR)**, ensuring seamless power transfer, optimal torque multiplication, and enhanced driving dynamics under varying load conditions. Crafted from durable, high-grade materials, it features a robust **stamped steel housing** with precision-machined surfaces to minimize friction and maximize efficiency, while its **clutch assembly** incorporates advanced friction materials engineered for longevity and consistent engagement. The converter s **stator and turbine** are dynamically balanced to reduce vibration and noise, even at high RPMs, making it ideal for both spirited driving and daily commuting. Its **lockup clutch mechanism** is finely tuned to engage at optimal engine speeds, improving fuel economy and reducing transmission wear by minimizing fluid slippage. This torque converter is compatible with the **Q50/Q60 s 6.2L V8 (Q60) and 3.7L V6 (Q50) engines**, delivering smooth, responsive shifts and robust torque delivery critical for maintaining the sporty yet refined performance that defines Infiniti s luxury performance segment. Whether navigating tight corners at high speeds or accelerating from a dead stop, this torque converter ensures reliable operation, contributing to the transmission s longevity and the vehicle s overall driving experience. Built to meet Infiniti s stringent quality standards, it is a direct-fit replacement, ensuring perfect compatibility with the factory transmission, making it an essential component for restorations, repairs, or upgrades.

### **Pros and Cons of buying a Infiniti Q50/Q60 (2016-2024) with the 3.1L V6 (VQ31DE) and 7-Speed Automatic Transmission (Q50/Q60 RWD)**

#### **Pros**

1. **Strong Engine Performance**

- The 3.1L VQ31DE V6 is a refined, turbocharged engine known for reliability and smooth power delivery. It produces **306 333 hp** and **306 333 lb-ft of torque**, making it capable of handling daily driving and spirited acceleration without excessive strain.

- The turbocharged setup provides better fuel efficiency than naturally aspirated V6s while maintaining strong low-end torque, improving drivability in stop-and-go traffic.

2. **7-Speed Automatic Transmission (ZF 7HP21)**

- The **7-speed automatic** is a significant upgrade over older 6-speed automatics, offering smoother shifts, quicker gear changes, and better fuel economy.

- The transmission is well-matched to the VQ31DE, with minimal reports of major failures if properly maintained.

- **Torque converter** (as specified) is standard and reliable, though some owners report minor hesitation during shifts, which is normal for this transmission.

3. **RWD (Rear-Wheel Drive) Platform**

- The **Q50/Q60 RWD** provides a more engaging driving experience compared to AWD, with better weight distribution and a sportier feel.

- The **Q50** (sedan) offers a more balanced ride, while the **Q60** (coupe) delivers a more aggressive, performance-oriented stance.

- RWD is generally more fuel-efficient than AWD in normal driving conditions.

4. **Infiniti s Reputation for Reliability (Compared to Competitors)**

- The VQ31DE engine has a strong track record for longevity, especially when maintained properly (oil changes every **5,000 7,500 miles**, timing belt replacement at **105,000 miles**).

- Infiniti s **Q50/Q60** models are less prone to major electrical or transmission issues compared to some German or luxury brands, though they are not immune to wear over time.

- The **7-speed automatic** is a proven unit (used in Mercedes, Audi, and BMW models), reducing the risk of transmission failure.

5. **Comfortable & Refined Interior**

- The cabin is **quiet, well-insulated, and spacious**, with high-quality materials (especially in higher trims like **Q50 Premium** or **Q60 Black Edition**).

- **Infiniti s Infotainment (until 2020) and later Nissan Connect (2021 )** systems are functional, though not as advanced as some competitors. The **2021 models** have a more modern touchscreen and Apple CarPlay/Android Auto.

- **Comfortable seating** with good support, making long drives less fatiguing.

6. **Good Fuel Economy for a V6**

- The **Q50/Q60 V6** averages **20 24 MPG city / 28 32 MPG highway**, which is competitive for a turbocharged V6 sedan/coupe.

- **Eco Mode** can improve efficiency further, making it a practical choice for daily commuting.

7. **Resale Value & Brand Perception**

- Infiniti has **improved resale values** in recent years, especially for well-maintained Q50/Q60 models.

- The **Q50/Q60** is positioned as a **luxury sport sedan/coupe**, appealing to buyers who want a **German-like driving experience without German prices**.

8. **Available Performance & Luxury Upgrades**

- **Q50 Premium, Q60 Black Edition, and Track Edition** models offer **sportier suspensions, Brembo brakes, and performance-oriented tuning**.

- **Adaptive cruise control, lane-keep assist, and blind-spot monitoring** are standard or available, improving safety.

9. **Lower Maintenance Costs Than German Luxury Brands**

- **Parts and labor** are generally cheaper than for BMW, Mercedes, or Audi, though still more expensive than a Toyota or Honda.

- **No complex hybrid/electric systems** to worry about, simplifying ownership.

10. **Good Handling & Driving Dynamics**

- The **Q50/Q60** has a **well-tuned suspension** that balances comfort and sportiness.

- **Steering feel is precise**, and the **RWD layout** makes it more engaging than a front-wheel-drive luxury sedan.

- **Available sport packages** (Q50 Track Edition, Q60 Black Edition) enhance agility and braking performance.

---

#### **Cons**

1. **Turbocharged Engine Reliability Concerns (If Neglected)**

- **Turbo wastegate failure** (leading to excessive boost or no boost).

- **Oil leaks** from the **valve cover gasket or oil filter housing gasket**.

- **Carbon buildup in intake valves** (less common than in older turbos but still a risk).

- **Solution:** Stick to **full synthetic oil (5W-30 or 0W-20)** and change it **every 5,000 7,500 miles**.

2. **Transmission & Torque Converter Issues (Less Common but Possible)**

- **Delayed shifts or hesitation** (especially in cold weather).

- **Torque converter slippage** under heavy load (rare but possible if fluid is old).

- **Solution:** **Transmission fluid should be changed every 60,000 100,000 miles** (some mechanics recommend more frequent changes).

3. **Infotainment System (Pre-2021 Models) is Outdated**

- The **pre-2021 Infiniti/Nissan Connect system** is **clunky, slow, and lacks modern features** like wireless CarPlay/Android Auto.

- **2021 models** have improved infotainment, but even those can be **glitchy at times**.

- **No digital gauge cluster** (unlike BMW or Mercedes), which some buyers find outdated.

4. **Build Quality & Interior Materials (Varies by Trim)**

- **Lower trims (Q50 Base, Q60 Base)** use **cheaper plastics** that feel less premium.

- **Higher trims (Premium, Black Edition, Track Edition)** have **better materials**, but some panels still lack the **premium feel** of a Lexus or Audi.

- **Rear seat comfort** is adequate but not as luxurious as in a BMW 5 Series or Mercedes E-Class.

5. **RWD Can Be Less Practical in Snow/Icy Conditions**

- While the **Q50/Q60 RWD** handles well in dry conditions, **AWD would be preferable** for heavy snow or off-road situations.

- **No available AWD version** of this engine (AWD models use the **V6 or V8**, which are less efficient).

6. **Resale Depreciation (Compared to Lexus or Toyota)**

- While Infiniti has improved, **Lexus and Toyota still hold value better** over time.

- The **Q50/Q60 is not as exclusive** as a BMW 5 Series or Mercedes E-Class, which may affect long-term resale.

7. **Limited Off-Road Capability**

- The **Q50/Q60 RWD** is not designed for off-roading. Even the **AWD versions** lack **serious off-road features** (no locking differential, low-range gear).

- If you need **serious off-road capability**, consider a **Lexus RX or Toyota Land Cruiser**.

8. **Some Electrical Glitches (Common in Nissan/Infiniti Models)**

- **Infotainment system freezes, power window malfunctions, or sensor issues** (like rain sensor misfiring) are occasional complaints.

- **Solution:** Regular software updates (if available) and avoiding cheap aftermarket modifications.

9. **Higher Maintenance Costs Than Japanese Alternatives**

- While cheaper than German brands, **Infiniti parts and labor are more expensive** than a **Toyota Camry V6 or Lexus GS**.

- **Turbocharged engines require more frequent maintenance** than naturally aspirated ones.

10. **Noise, Vibration, and Harshness (NVH) in Some Areas**

- **Wind noise** can be noticeable at highway speeds, especially in the **Q60 coupe**.

- **Road noise** is better than in older Infinitis but not as refined as in a **Lexus or Audi**.

- **Engine mount wear** can cause **excessive vibration** over time (common in many cars, but Infiniti s are not immune).

---

### **Ending Conclusion**

The **2016 2024 Infiniti Q50/Q60 (3.1L V6, 7-speed automatic, RWD)**

Details:

part #: 3110039x0a prices

• $199.79-$250.00

specifications autotransmissionsgo:

• for models: Rwd
• for makes: Infiniti
• for years: 2016-2024
• mpn: 31100-39x0a
• items included: -
• vintage part: No
• type: Automatic Transmission
• manufacturer warranty: 1 Month
• country of origin: Japan
• performance part: Yes

payments autotransmissionsgo:

• wallet: Google-pay
• credit card: Diners-club
• other

offer autotransmissionsgo:

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

seller autotransmissionsgo:

• rating: 99.7%
• city: Miami, Florida
• # reviews: 1620

returns autotransmissionsgo:

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

shipping autotransmissionsgo:

• service: UPS Ground
• class: Standard
• cost: $0.00
• carrier: UPS
• type: Fixed
• transit: 5-10 Days

general autotransmissionsgo:

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

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