GENESIS 450004J805 Transmission Sport 400-10571 110K 3.3L

( Brand: Genesis ), ( Manufacturer Part Number: 450004J805 ), ( Oe/oem Part Number: 45000-4j805 ), ( Ipn: 400-10571 ), ( Mounting Hardware Included: No ), ( Manufacturer Warranty: 90 Day Warranty ), ( Warranty Coverage: Parts Only No Labor Coverage ), ( California Prop 65 Warning: Operating, Servicing And Maintaining A Passenger Vehicle Or Off-road Vehicle Can Expose You To Chemicals Including Engine Exhaust, Carbon Monoxide, Phthalates, And Lead, Which Are Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. To Minimize Exposure, Avoid Breathing Exhaust, Do Not Idle The Engine Except As Necessary, Service Your Vehicle In A Well-ventilated Area And Wear Gloves Or Wash Your Hands Frequently When Servicing Your Vehicle. ), ( Part Category: Transmission ), ( Fitment Type: Direct Replacement ), ( Option Type: 110k, 3/5 Stars, 90 Day Warranty ), ( Condition Description: Used / ), ( Country Of Origin: Korea, Republic Of ), ( Placement On Vehicle: Lower ), ( Items Included: See Item Description ), ( Fitment Years: 2018 2019 2020 ), ( Trim Level: 3.3t Sport ), ( Engine Size: 3.3l ), ( Surface Finish: Oem / Factory Finish ), ( Oem/aftermarket: Oem ), ( Removed From: 2018 Genesis G80 3.3t Sport 3.3l At Rwd ), ( Warranty Duration: 90 Days ), ( Returns Accepted: Yes ), ( Donor Mileage Category: 100k-125k )

Review GENESIS Transmission 110k At Sport 3.3l Warranty Tested Oem fits G80 RWD 2018–2020

The **Genesis G80 (Model Code: 450004J805) from the 2018 2020 model years** represents a refined and commanding presence in the luxury sedan segment, blending cutting-edge engineering with the timeless elegance of a full-size executive car. Engineered for those who demand both sophistication and performance, this model is powered by a **3.3-liter naturally aspirated V6 engine**, producing a robust **304 horsepower and 252 lb-ft of torque**, delivering a seamless yet spirited driving experience. The **Sport RWD (Rear-Wheel Drive) configuration** ensures a dynamic and engaging handling profile, ideal for drivers who appreciate a more direct and responsive connection to the road, while the **8-speed automatic transmission** (ZF 8HP90) offers smooth, precise gear shifts with minimal lag, enhancing both comfort and performance across a wide range of speeds. Whether navigating city streets or cruising on the highway, the G80 s transmission adapts effortlessly, providing a balance of efficiency and exhilaration.

Inside, the G80 exudes a sense of opulence and meticulous craftsmanship, with premium materials adorning the cabin, including **genuine leather upholstery, ambient lighting, and meticulously stitched stitching** that elevates the driving experience into one of luxury. The **12.3-inch touchscreen infotainment system** (with optional **12.3-inch digital gauge cluster**) integrates seamlessly with Apple CarPlay, Android Auto, and a **Genesis SmartSense suite**, which includes advanced driver-assistance features like **adaptive cruise control, lane-keeping assist, blind-spot monitoring, and a 360-degree surround-view camera** for enhanced safety and convenience. The **12-speaker Harman Kardon premium audio system** (available as an option) further immerses occupants in a rich, immersive sound experience, ensuring that every journey is as enjoyable as it is comfortable.

The G80 s **Sport RWD trim** is particularly appealing to enthusiasts who appreciate a more engaging driving stance, with a **sport-tuned suspension system** that balances comfort with sporty agility. The **19-inch alloy wheels** (standard on higher trims) and **low-profile tires** not only enhance the vehicle s aesthetic appeal but also contribute to a more connected and responsive ride. Additionally, the **available **Genesis Drive Select** system allows drivers to customize the vehicle s driving modes from **Comfort (for a plush, smooth ride) to Sport (for a firmer, more responsive feel) tailoring the G80 to match the driver s mood and road conditions. With its **33.7-inch length and a commanding 60.9-inch wheelbase**, the G80 offers a spacious and commanding interior, ensuring that both the driver and passengers enjoy ample legroom, headroom, and cargo capacity (up to **16.1 cubic feet** behind the rear seats).

Beyond its performance and luxury, the G80 is built on a **solid platform** with a **galvanized high-strength steel body** and **multi-stage paint process**, ensuring durability and long-term reliability. The **Genesis G80 s 3.3L V6 engine** is paired with a **6-speed automatic transmission in earlier models (pre-2019) and upgraded to an 8-speed in 2019 and beyond**, further refining the driving dynamics. Whether parked in a high-end urban setting or cruising along a scenic coastal highway, the G80 commands attention with its **aerodynamic design, sleek LED headlights, and a bold front grille**, while its **rear spoiler and sporty taillights** reinforce its sporty yet luxurious identity. For those seeking a vehicle that merges **performance, refinement, and prestige**, the **2018 2020 Genesis G80 (450004J805) Sport RWD 3.3L** stands as a compelling choice a true blend of Korean engineering excellence and European-inspired luxury.

### **Pros and Cons of Buying a 2018-2020 Genesis G80 (450004J805, 3.3L, 8-Speed G80 Transmission, Sport RWD)**

#### **Pros**

1. **Strong Engine and Performance**

- The 3.3L V6 engine (from Hyundai/Kia) produces **275 horsepower and 252 lb-ft of torque**, providing a solid balance of power and efficiency for a luxury sedan.

- The **8-speed automatic transmission (G80)** is smooth and responsive, offering better shift quality than older 6-speed automatics.

- RWD configuration enhances handling and acceleration, making it more engaging than FWD models.

2. **Luxury and Comfort**

- High-quality interior materials (available in premium trims like **3.3T, 3.5T, or Limited**) with soft-touch surfaces, leather seats, and available **ventilated/heated front seats**.

- Spacious cabin with **good legroom** for front and rear passengers, though trunk space is modest ( 15.6 cu. ft.).

- Quiet cabin due to **sound insulation**, contributing to a refined driving experience.

3. **Safety Features**

- Standard **forward collision warning, automatic emergency braking, lane-keep assist, blind-spot monitoring, and rear cross-traffic alert** (varies by trim).

- **High-rated crash test scores** (IIHS Top Safety Pick in some years).

- Available **adaptive cruise control and 360-degree camera** in higher trims.

4. **Tech and Infotainment**

- **8-inch touchscreen** (upgradable to **10.25-inch in higher trims**) with **Apple CarPlay, Android Auto, and wireless charging**.

- **Available 12.3-inch digital gauge cluster** (in 3.5T/3.3T models) for a futuristic look.

- **Premium audio systems** (Bose or Harman Kardon available) with **12 speakers**.

5. **Reliability and Warranty**

- **5-year/60,000-mile basic warranty** and **10-year/100,000-mile powertrain warranty** (one of the best in the segment).

- The **3.3L V6 is a proven engine** (shared with Hyundai/Kia) with fewer issues than some turbocharged alternatives.

- **Lower maintenance costs** compared to German luxury brands, though parts can be expensive.

6. **Resale Value**

- Genesis has improved resale retention, though not yet at BMW/Audi levels. Still, better than some domestic brands.

7. **Value for Money**

- Competitively priced against **BMW 5 Series, Lexus GS, and Acura TLX**, offering similar features at a lower starting MSRP ( $40,000 $50,000 new).

- **Sport RWD trim** adds a sportier feel without the premium of a full AWD model.

---

#### **Cons**

1. **Build Quality and Interior Materials**

- Some owners report **plastic-feeling trim** in lower trims (e.g., **3.3L base model**), though higher trims improve.

- **Door panel gaps and rattles** have been noted in early models (2018 2019), though Genesis addressed some in 2020.

- **Seats are comfortable but not as supportive as competitors** (e.g., BMW s memory foam).

2. **Ride Comfort and Handling**

- **Suspension is firm**, which can make highway comfort less smooth compared to softer rivals (e.g., Lexus GS).

- **RWD models feel underpowered in passing** due to the V6 s torque curve (turbocharged 3.5T models are more spirited).

- **Steering is precise but not as engaging** as BMW s or Audi s.

3. **Engine and Transmission Quirks**

- The **3.3L V6 is reliable but lacks excitement** not as fun to drive as a turbocharged engine.

- Some reports of **transmission hesitation or delayed shifts** in early models (2018 2019), though improved in 2020.

- **No available manual transmission**, which may disappoint enthusiasts.

4. **Infotainment and Tech Lag**

- **Software updates can be slow**, and the **infotainment system is less intuitive** than Tesla or newer luxury brands.

- **No wireless CarPlay/Android Auto in base models** (requires upgrade).

- **Bluetooth connectivity issues** reported in some units.

5. **Fuel Economy and Practicality**

- **MPG is average** ( 18 city / 27 highway for RWD), worse than some hybrids (e.g., Lexus ES 300h).

- **Trunk space is small** ( 15.6 cu. ft.), making it less practical for large purchases.

- **No available AWD** (unlike Lexus GS or BMW 5 Series), limiting winter traction.

6. **Brand Perception and Dealer Experience**

- **Genesis is still a relatively new brand**, so some dealers may not be as knowledgeable as Lexus or BMW dealers.

- **Resale value is improving but not yet at luxury levels**, meaning depreciation may be higher than expected.

7. **Turbocharged 3.5T Alternative**

- If you want **more power (335 hp) and better fuel economy ( 20 city / 28 highway)**, the **3.5T model** is a better choice, though it has its own issues (turbo lag, higher maintenance costs).

---

### **Ending Conclusion**

The **2018-2020 Genesis G80 (3.3L RWD, Sport trim)** is a **solid mid-size luxury sedan** that offers a **good balance of comfort, safety, and value**, especially in the **3.3T or 3.5T trims**. It excels in **reliability, warranty coverage, and tech features**, making it a practical choice for those who prioritize **long-term ownership and resale value**.

However, it **lacks the excitement of a turbocharged engine**, has **firmer ride comfort**, and **some build quality inconsistencies** in lower trims. If you prefer **a more engaging drive**, consider the **3.5T model or a BMW 5 Series**. If you want **a refined, safe, and well-warrantied luxury sedan on a budget**, the **G80 is a strong contender**, particularly if you **prioritize reliability over sportiness**.

---

### **Final Recommendation**

You want a **luxury sedan with strong warranty coverage** (5/10-year).

You prefer **a smooth, reliable V6 over a turbocharged engine**.

You value **safety tech, Apple CarPlay, and a comfortable ride** over sporty handling.

You plan to **keep it long-term** (5 years) and benefit from low maintenance costs.

You find a **well-maintained example** (check for **service records, no transmission issues, and no major accidents**).

You want **a more engaging or powerful drive** (opt for **3.5T model or BMW 530i**).

You need **better fuel economy** (consider a **hybrid like Lexus ES 300h**).

You prioritize **ultra-luxury feel and refinement** (look at **Lexus GS, Audi A6, or BMW 5 Series**).

You find **major transmission or electrical issues** in the used market (stick to **2020 models** if possible).

- **3.3T (2020)** Best balance of power (275 hp), tech, and refinement.

- **3.5T (2020)** More exciting (335 hp), better fuel economy, but check for turbo lag.

- **Avoid 2018 2019 base 3.3L models** if build quality is a concern.

The **Genesis G80 is a smart buy for those who want a luxury sedan without the premium price tag of BMW or Lexus**, provided you **choose the right trim, inspect for issues, and prioritize reliability over sportiness**. If you find a **well-maintained 2020 model with a clean history**, it s a **great value in the used luxury market**.

Details:

Items are sold as listed and pictured. All used items may show signs of wear and regular use. Item Listing 2018 - 2020 GENESIS G80 Transmission 110K AT Sport RWD 3.3L Warranty Tested OEM: Compatibility: See Below, May NOT fit all vehicles. Donor Vehicle 2018 GENESIS G80.

Fitment may apply to all listed vehicles or only those equipped with specific option below. No labor coverage included. G80 2018 - 2020 AT, 3.3L Sport, RWD US market. Please review all photos carefully.

Some components may need to be programmed, re-calibrated, or synced your vehicle before it will work properly. Parts are specific to application and may NOT fit all vehicles.

part #: 450004j805 prices

• $770.00-$1537.00

specifications autotransmissionsgo:

• for models: G80, Rwd
• for years: 2018-2020
• brand: Genesis
• mpn: 450004j805
• oe/oem part number: 45000-4j805
• ipn: 400-10571
• mounting hardware included: No
• manufacturer warranty: 90 Day Warranty
• warranty coverage: Parts Only No Labor Coverage
• california prop 65 warning: Operating, Servicing And Maintaining A Passenger Vehicle Or Off-road Vehicle Can Expose You To Chemicals Including Engine Exhaust, Carbon Monoxide, Phthalates, And Lead, Which Are Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. To Minimize Exposure, Avoid Breathing Exhaust, Do Not Idle The Engine Except As Necessary, Service Your Vehicle In A Well-ventilated Area And Wear Gloves Or Wash Your Hands Frequently When Servicing Your Vehicle.
• part category: Transmission
• fitment type: Direct Replacement
• option type: 110k, 3/5 Stars, 90 Day Warranty
• condition description: Used /
• country of origin: Korea, Republic Of
• placement on vehicle: Lower
• items included: See Item Description
• fitment years: 2018 2019 2020
• trim level: 3.3t Sport
• engine size: 3.3l
• surface finish: Oem / Factory Finish
• oem/aftermarket: Oem
• removed from: 2018 Genesis G80 3.3t Sport 3.3l At Rwd
• warranty duration: 90 Days
• returns accepted: Yes
• donor mileage category: 100k-125k

returns autotransmissionsgo:

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

offer autotransmissionsgo:

• quantity: 1
• best offers: True
• started: April 22, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0

payments autotransmissionsgo:

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

shipping autotransmissionsgo:

• type: Fixed
• class: Economy
• cost: $295.00
• transit: 5-10 Days
• service: Economy

general autotransmissionsgo:

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

seller autotransmissionsgo:

• city: Roseville, California
• # reviews: 13377
• rating: 99.7%

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