HYUNDAI Transmission 400-11247 29K LKQ442945165

( Part Type: Transmission ), ( Ipn: 400-11247 ), ( Genuine Oem: Yes ), ( Manufacturer Warranty: 6 Month ), ( Warranty Length: 6 Month Warranty ), ( Vehicle Transmission Type: Auto ), ( Oe/oem Part Number: 4500047eg0 ), ( Partout Id: A-104274528 )

Review HYUNDAI Transmission Oem 29k Miles fits GENESIS G80 2021

The **Hyundai 400-11247 2021 Genesis G80 8-Speed Automatic Transmission (Part Number: LKQ442945165)** is a high-performance, precision-engineered transmission designed to deliver seamless shifting, superior efficiency, and long-lasting durability for the luxury Genesis G80. Built to meet Hyundai s stringent quality standards, this **8-speed automatic transmission** features a robust **wet dual-clutch system** integrated with advanced hydraulic and electronic controls, ensuring smooth acceleration, optimal fuel economy, and enhanced driving dynamics. The transmission incorporates a **torque converter** with a **lock-up clutch**, allowing for improved efficiency by eliminating slippage during cruising speeds while maintaining responsive power delivery under acceleration. Its **compact yet robust design** accommodates the G80 s powerful **2.5L turbocharged inline-4 engine** (or optional **3.3L V6**) with ease, providing precise gear ratios that optimize both performance and refinement. The transmission s **adaptive shift logic** adjusts shifting patterns based on driving conditions, ensuring a tailored experience whether navigating city traffic, highway cruising, or spirited overtaking maneuvers. Constructed from **high-grade steel and advanced alloys**, the transmission components are engineered for resistance to wear, heat, and stress, extending the lifespan of the drivetrain even under demanding conditions. Additionally, the **integrated torque converter** and **valve body assembly** are designed for minimal friction and optimal fluid circulation, reducing heat buildup and prolonging transmission fluid life. This **OEM-quality replacement unit** is a direct fit for the **2021 Genesis G80**, ensuring compatibility with the vehicle s factory wiring harness, mounting points, and control linkages without the need for modifications. Whether restoring a previously damaged transmission or upgrading an existing one, this **LKQ-certified part** offers the reliability and performance expected from Hyundai s premium lineup, making it an ideal choice for both professional mechanics and discerning owners seeking a seamless, high-end driving experience.

### **Pros and Cons of Buying a 2021 Hyundai Genesis G80 with the 400-11247 Transmission (LKQ442945165)**

#### **Pros**

1. **Reliable Base Model** The 2021 Genesis G80 is a well-built luxury sedan with a reputation for solid construction, comfortable ride quality, and a spacious interior. Hyundai s quality improvements over recent years have made it a more competitive option in the premium segment.

2. **8-Speed Automatic Transmission (LKQ442945165)** This transmission is Hyundai s standard 8-speed automatic, which is generally smooth and efficient for its class. It offers better fuel economy and smoother shifts compared to older 6-speed or 7-speed automatics found in some competitors.

3. **Good Fuel Economy** The G80 s 2.5L turbocharged engine paired with the 8-speed transmission provides decent fuel efficiency (around 20-22 MPG combined), which is respectable for a midsize luxury sedan.

4. **Comfortable and Spacious Cabin** The G80 offers a roomy interior with premium materials, especially in higher trims. The seating is supportive, and the ride is well-damped, making it suitable for both city driving and highway cruising.

5. **Hyundai s Warranty Coverage** The 2021 model comes with Hyundai s standard warranty, which includes a **5-year/60,000-mile basic warranty** and a **10-year/100,000-mile powertrain warranty**. This provides peace of mind for major components, including the transmission.

6. **Tech and Safety Features** The G80 includes modern infotainment (if equipped) and advanced safety features like forward collision warning, lane-keeping assist, and blind-spot monitoring, depending on the trim.

7. **Resale Value** Hyundai has improved its resale retention, and the G80 holds value better than some domestic competitors, though it still lags behind German brands.

---

#### **Cons**

1. **Transmission Concerns (400-11247/LKQ442945165)** While Hyundai s 8-speed automatic is generally reliable, some owners and mechanics have reported **rough shifting, delayed engagement, or electronic glitches** in certain units. The **400-11247** transmission code is associated with the **2021 G80 s 8-speed automatic**, and while not as notorious as the **9-speed in some Kias**, it has had **recalls and service bulletins** addressing transmission control module (TCM) issues.

- **Transmission slipping or hesitation** under load.

- **Erratic shifting or delayed upshifts** (common in early 8-speed automatics).

- **TCM (Transmission Control Module) failures**, which can require a costly replacement ( $1,500 $2,500).

- **Recalls (e.g., 2021 G80 had a recall for transmission software updates)** ensure the vehicle has been serviced.

2. **Turbocharged Engine Reliability** The **2.5L turbocharged engine** (used in the G80) is generally strong but has had reports of **oil consumption issues, turbocharger failures, or carbon buildup** in some cases. Proper maintenance (oil changes every 5,000 7,500 miles) is critical.

3. **Interior Quality Variability** While the G80 s interior is decent, some owners report **cheaper plastics and less premium feel** compared to rivals like the BMW 3 Series or Audi A4. The **standard trim (2.5T) lacks some luxury refinements** found in higher trims.

4. **Resale Depreciation** Luxury sedans depreciate quickly, and the G80, while improving, still doesn t hold value as well as German or Japanese luxury brands. If you plan to sell in a few years, expect a significant drop in value.

5. **Noise and NVH (Noise, Vibration, Harshness)** Some owners complain about **wind noise at highway speeds** and **engine whine**, which can be more noticeable than in competitors like the Toyota Avalon or Honda Accord.

6. **Maintenance Costs** While Hyundai offers good warranty coverage, **long-term maintenance costs** (especially for turbo engines and transmissions) can add up. Independent mechanics may charge more for Hyundai-specific parts.

7. **Limited Performance** The **2.5T engine (275 hp)** is adequate but not as powerful as competitors like the **3.0L V6 in the BMW 330i or the 3.0T in the Audi A4**. The G80 feels more like a **premium midsize sedan** than a true luxury performance car.

---

### **Conclusion**

The **2021 Hyundai Genesis G80 with the 400-11247 transmission** is a **solid choice for a reliable, comfortable, and reasonably priced luxury sedan**, especially if you prioritize **warranty coverage, fuel efficiency, and a smooth ride**. However, **transmission concerns (TCM issues, shifting problems) and potential engine reliability risks** (turbocharged 2.5L) are **key drawbacks** that must be addressed before purchasing.

- **No transmission complaints in service records**

- **Up-to-date software updates (check for recalls)**

- **Proper oil change history (critical for turbo engines)**

- **A dealer or private seller who can provide a pre-purchase inspection**

then it can be a **good buy**. However, if you re concerned about transmission reliability, consider **alternatives like the Toyota Avalon, Honda Accord Touring, or Lexus ES 350**, which have **proven transmission longevity**.

---

### **Final Recommendation**

**Buy with caution and due diligence.**

- **Best for:** Buyers who want a **luxury sedan with Hyundai s warranty, good fuel economy, and a comfortable ride** but are willing to **monitor transmission health closely**.

- **Avoid if:** You **cannot afford potential transmission repairs** or prefer **proven, long-lasting automatics** (e.g., ZF 8-speed in BMWs, Jatco in Toyotas).

- **Get a pre-purchase inspection (PPI) from a Hyundai specialist.**

- **Check for transmission recalls and service bulletins.**

- **Verify oil change history (critical for turbo engines).**

- **Consider a certified pre-owned (CPO) model if available, as it may come with extended warranty coverage.**

If the vehicle checks out, the **2021 Genesis G80 is a practical and affordable luxury sedan** but **transmission reliability remains the biggest wildcard**.

Details:

No photos of the actual transmission are available. Warranty does NOT cover labor, diagnostics, towing, rental car, or any other expense related to an item being defective/damaged. Transfer cases are not included with transmission from AWD vehicles. Flush the transmission cooler lines and radiator with a power flush machine or an aerosol 'Cooler Kit.

This listing is for 1 Transmission ONLY, Warranty covers the transmission case, torque converter included automatic transmissions only and all internal components. Clear all transmission computer codes in the vehicle prior to starting or operating. This is NOT a manufacturer part number, and can be disregarded. Will fit: Hyundai Genesis G80 2021 2022 AT, 2.5L, AWD. Replace the radiator or cooler if recommended by manufacturer.

Remove all 'cap-plugs' from lines and orifices. Fill the transmission with OEM recommended fluids. Verify the differential portion of transmission is full fluid. They will not have any packaging included.

Change over sensors as needed. Inspect and replace rear seal as needed. ATTENTION: Stock photo shows multiple Transmissions. Residential Address - Load is curbside delivery ONLY.

Warranty does NOT cover labor, diagnostic, towing or rental car costs. Replace front seal. Properly install and index the torque converter completely into front pump. In certain types of Transmissions the TCM transmission controlling computer is incorporated with Valve body which may require valve to be replaced.

Someone over 18 must be present for delivery. Most 4WD some 2WD vehicles must re-learn the shift logic to transmission after installation. Remove torque converter strap. To aid in installation, you get to keep your current transmission and all attached accessories.

This will ensure the cooling system is flowing.

part #: lkq442945165 price

• $2528.10

specifications autotransmissionsgo:

• for models: G80, Genesis
• for makes: Hyundai
• for years: 2021
• part type: Transmission
• ipn: 400-11247
• genuine oem: Yes
• manufacturer warranty: 6 Month
• warranty length: 6 Month Warranty
• vehicle transmission type: Auto
• oe/oem part number: 4500047eg0
• partout id: A-104274528

seller autotransmissionsgo:

• city: Tooele, Utah
• rating: 98.1%
• # reviews: 492107

offer autotransmissionsgo:

• started: February 17, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock

shipping autotransmissionsgo:

• cost: $0.00
• class: Freight
• type: Fixed
• service: Flat Rate Freight

payments autotransmissionsgo:

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

general autotransmissionsgo:

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

returns autotransmissionsgo:

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

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