1. Torque Converters For Sale
  2. sku: 7065621384539673
  3. KIA OPTIMAKIA

KIA 407.KI1Q18 Automatic Transmission Torque Converter

fits model: Optima. make: Kia. year: 2016–2018.

407.ki1q18 Kia Optima Automatic Transmission Torque Converter 2018 2017 2016

( Model: OPTIMAKIA ), ( Part Type: Torque Transmission Converter ), ( Conditions Options: 4, 2.4, At, Fwd ), ( Genuine Oem: Yes ), ( Ipn: 407.ki1q18 ), ( Manufacturer Warranty: 60 Day ), ( Partout Id: A-111187394 )

Review KIA Automatic Transmission Torque Converter fits OPTIMA 2016–2018

The **Kia 407.ki1q18 Optima Automatic Transmission Torque Converter** is a high-performance, precision-engineered component designed exclusively for the **2016, 2017, and 2018 Kia Optima models** equipped with the **6-speed automatic transmission (6APS)**. This torque converter is a critical part of the powertrain system, responsible for transferring engine torque to the transmission fluid, enabling smooth and efficient power delivery while enhancing overall drivability. Engineered with **Kia s stringent quality standards**, this torque converter is built to withstand the demands of daily driving, offering reliable performance under varying conditions, from city commutes to highway cruising.

Constructed from **high-grade aluminum and durable steel components**, the **407.ki1q18 torque converter** features a **stamped stator and pump housing**, ensuring optimal fluid circulation and torque multiplication. The **clutch assembly**, including the **torque converter clutch (TCC)**, is designed to engage seamlessly during overdrive conditions, improving fuel efficiency without sacrificing acceleration. The **one-way clutch** within the stator allows for efficient fluid flow in both forward and reverse directions, reducing energy loss and enhancing transmission longevity. Additionally, the **sealed bearing assembly** minimizes friction and wear, contributing to a quieter and more responsive drivetrain.

This torque converter is **directly compatible** with the **2.4L and 3.3L naturally aspirated engines** found in the specified Optima models, ensuring a perfect fit with the **6APS transmission**. Its **robust construction** helps prevent common issues such as slippage, overheating, or premature failure, which can occur with lower-quality aftermarket replacements. Whether you're restoring a classic Optima or maintaining a well-used vehicle, this **OEM-spec torque converter** provides the durability and performance expected from Kia s original equipment parts. For optimal results, it is recommended to use **Kia-approved transmission fluid** and follow the manufacturer s maintenance guidelines to extend the life of both the torque converter and the transmission.

### **Pros and Cons of Buying a 2016-2018 Kia Optima (407.ki1q18, Automatic Transmission, Torque Converter)**

#### **Pros:**

1. **Reliability and Durability** The Kia Optima, especially in the 2016-2018 models, is known for its solid build quality and long-lasting engine (2.4L or 2.0L turbo). Many owners report minimal major issues if maintained properly.

2. **Good Fuel Efficiency** The 2.4L naturally aspirated engine averages around **28-32 MPG combined**, while the 2.0L turbo offers slightly better fuel economy ( 29-33 MPG). This makes it cost-effective for daily driving.

3. **Comfortable Ride** The Optima features a smooth suspension setup, making it ideal for highway cruising and city driving. The cabin is well-insulated, reducing road noise.

4. **Affordable Maintenance Costs** Kia parts are generally cheaper than many competitors, and the 6-speed automatic transmission (with torque converter) is reliable if serviced regularly.

5. **Safety Features** Later models (2017-2018) come with standard safety tech like **forward collision warning, lane-keep assist, and blind-spot monitoring**, improving resale value.

6. **Decent Resale Value** Compared to some domestic rivals, the Optima holds its value reasonably well, especially with lower mileage.

7. **Spacious Interior** The cabin is roomy, with good rear legroom and cargo space (up to **15.7 cu. ft.**), making it practical for families.

8. **Available Tech Options** Some trims include **Apple CarPlay, Android Auto, and a 7-inch touchscreen**, which enhance usability.

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#### **Cons:**

1. **Transmission Issues (If Not Maintained)** Some owners report **rough shifting or delayed engagement** in the automatic transmission, particularly if fluid changes were neglected. Regular transmission fluid changes are crucial.

2. **Turbocharged Engine Concerns (2.0L)** The turbocharged models (2017 ) can suffer from **turbo lag** and **oil dilution issues** in cold weather if not properly maintained. The 2.4L NA engine is more straightforward but less powerful.

3. **Infotainment System Lag** The touchscreen interface can be slow to respond, and some users report **glitches with Bluetooth and media playback**.

4. **Interior Quality Variability** Lower trims use **plastic-heavy materials**, while higher trims have better upholstery. Overall, it s not as premium as German or luxury brands.

5. **Rust Susceptibility** Older Kias (pre-2016) had rust concerns, but 2016-2018 models improved with better corrosion protection. Always check the undercarriage before buying.

6. **Resale Depreciation** While better than some competitors, the Optima still loses value over time, especially compared to Japanese or European brands.

7. **Limited Power (2.4L NA)** The naturally aspirated engine (181 hp) feels underpowered compared to turbocharged rivals, though the 2.0L turbo (240 hp) is stronger.

8. **Recall History** Some models had recalls for **transmission issues, airbag defects, and fuel pump failures**. Always check the vehicle history for recalls.

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### **Ending Conclusion:**

The **2016-2018 Kia Optima (407.ki1q18, automatic transmission)** is a **solid mid-size sedan** that offers **good reliability, fuel efficiency, and comfort** for the price. It s a **great choice for budget-conscious buyers** who prioritize **durability and practicality** over luxury features.

However, **potential transmission issues, turbocharged engine quirks (if applicable), and minor tech frustrations** mean it s not a perfect car. **Buyers should:**

- **Check maintenance records** (especially transmission fluid changes).

- **Test drive for smooth shifting and turbo response (if applicable).**

- **Inspect for rust and body damage.**

- **Consider a pre-purchase inspection** if buying used.

If well-maintained, this Optima can be a **dependable daily driver** for **150,000 miles** with proper care.

---

### **Final Recommendation:** **Buy if:**

You need a **reliable, fuel-efficient sedan** for daily commuting.

You re okay with **basic interior materials** and **no luxury features**.

You **prioritize long-term value** over high performance.

**Avoid if:**

You want a **high-performance or premium feel** (consider a Toyota Camry or Honda Accord instead).

You **ignore maintenance** (transmission and turbo issues can be costly).

You **need advanced safety tech** (some rivals offer better standard features).

**Best Alternative Considerations:**

- **Toyota Camry** (more refined, better resale)

- **Honda Accord** (more reliable long-term)

- **Hyundai Sonata** (similar specs, often cheaper)

For the right buyer, the **2016-2018 Kia Optima is a practical and affordable choice**, but due diligence is essential before purchasing.

Details:

Torque converter. Stock Number - 2583. It is stored in doors and ready to be shipped. Donor Vehicle - 2018 OPTIMAKIA.

4 ,2.4,AT,FWD.

specifications torquconv:

  • for models: Optima
  • for makes: Kia
  • for years: 2016-2018
  • model: Optimakia
  • part type: Torque Transmission Converter
  • conditions options: 4, 2.4, At, Fwd
  • genuine oem: Yes
  • ipn: 407.ki1q18
  • manufacturer warranty: 60 Day
  • partout id: A-111187394

offer torquconv:

  • options: Ship-to-home
  • best offers: True
  • availability: In Stock
  • started: February 5, 2026
  • quantity: 1
  • sold: 0

general torquconv:

  • Car Truck Parts Accessories > Transmission Drivetrain > Torque Converters
  • condition: Used

payments torquconv:

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

seller torquconv:

  • rating: 99.6%
  • # reviews: 26906
  • city: Sauk Centre, Minnesota

shipping torquconv:

  • carrier: UPS
  • type: Fixed
  • cost: $0.00
  • service: UPS Ground
  • transit: 2-5 Days
  • class: Standard

returns torquconv:

  • policy: Returns Accepted
  • paid by: Buyer
  • time: 60 Days
for models: optima, for makes: kia, for years: 2016-2018, part type: torque transmission converter, conditions options: 4, 2.4, at, fwd, genuine oem: yes, manufacturer warranty: 60 day, partout id: a-111187394,
manufacturer: kia, category: auto parts > car truck parts accessories > transmission drivetrain > torque converters, sku: 7065621384539673,
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