1. Engine Crankshafts Products
  2. sku: 19187524200393752
  3. TOYOTA 134050L021

TOYOTA Flywheel 13405-0L021 1KDFTV 2KDFTV

fits make: Toyota.

13405-0l021 Toyota 134050l021 Flywheel Sub-assy 1kdftv 2kdftv 1kd 2kd

( Manufacturer Part Number: 134050L021 ), ( Part Type: Flywheel ), ( Oe/oem Part Number: 13405-0l021 )

Review TOYOTA Flywheel Sub assy 1kd 2kd

The **Toyota 134050L021 Flywheel Sub-Assembly (Part Numbers: 13405-0L021, 1KDFTV, 2KDFTV, 1KD, 2KD)** is a critical component of Toyota s 1.3L and 1.5L 4-cylinder engine families, specifically designed for models equipped with the **1KD-FTV** and **2KD-FTV** turbocharged direct-injection engines, as well as the naturally aspirated **1KD** and **2KD** variants. This precision-engineered sub-assembly serves as the interface between the engine s crankshaft and the transmission, playing a dual role in both power transfer and torque management. The flywheel is forged from high-grade **ductile iron or steel**, ensuring durability under the high rotational stresses and thermal fluctuations inherent in turbocharged applications, where peak power outputs can exceed 200 horsepower. Its **dual-ring design** comprising a robust outer ring for clutch engagement and an inner ring that houses the **starter ring gear** optimizes both drivability and starting efficiency, reducing wear on the starter motor while maintaining smooth power delivery to the transmission.

A defining feature of this flywheel is its **integrated vibration-damping system**, which incorporates a **multi-layered rubber or elastomeric ring** sandwiched between the flywheel s two main plates. This design mitigates torsional vibrations generated by the engine s reciprocating components, particularly in turbocharged setups where forced induction can exacerbate harmonic oscillations. The sub-assembly also includes a **precision-machined pilot bore** that aligns seamlessly with the crankshaft s journal, minimizing axial play and ensuring consistent rotational balance. For models equipped with a **dual-mass flywheel (DMF)**, this sub-assembly may incorporate a secondary inertia ring connected via **torsional dampers**, further enhancing smoothness and longevity especially in high-torque applications like the **2KD-FTV**, which powers vehicles such as the Toyota Corolla, Yaris, and RAV4.

Compatibility is a hallmark of this part, as it is engineered to fit a broad spectrum of Toyota applications, including the **1KD-FTV** (found in the 2011 2017 Corolla and Yaris) and the **2KD-FTV** (used in the 2014 2020 RAV4 and 2015 2018 Corolla Cross). The sub-assembly s **universal fitment** extends to naturally aspirated **1KD** and **2KD** engines, making it a versatile upgrade or replacement option for both stock and modified vehicles. When installed, the flywheel s **balanced weight distribution** and **high-friction surface** (often treated with a **clutch-facing coating** for optimal grip) ensure reliable clutch engagement while reducing the risk of slippage or premature wear. Additionally, the starter ring gear s **optimized tooth profile** enhances engagement with the starter motor, reducing the strain on electrical systems during cold starts a critical consideration in modern, fuel-efficient engines where reduced starter wear directly impacts longevity.

For performance enthusiasts, this flywheel sub-assembly is often a **highly recommended upgrade** when paired with turbocharged modifications, as its robust construction can handle the increased torque and RPM ranges without compromising structural integrity. The part s **OEM-level tolerances** and **heat-treated surfaces** ensure resistance to warping, a common issue in aftermarket flywheels that can lead to clutch failure or transmission damage. Whether used in a **stock application, a mild turbo build, or a high-performance setup**, the **134050L021 Flywheel Sub-Assembly** delivers a harmonious blend of durability, precision, and reliability, making it an indispensable component for maintaining the performance and longevity of Toyota s 1KD and 2KD engine platforms.

### **Pros and Cons of buying a Toyota 13405-0L021 Flywheel Sub-Assembly (1KD-FTV, 2KD-FTV, 1KD, 2KD)**

#### **Pros:**

1. **Direct Fitment** This flywheel is designed specifically for Toyota engines (1KD-FTV, 2KD-FTV, 1KD, and 2KD), ensuring compatibility without modifications. It will fit without the need for customization, reducing installation hassles.

2. **OEM Quality** As a genuine Toyota part (or a high-quality aftermarket equivalent), it should meet the same durability and performance standards as the original equipment. This minimizes the risk of premature failure due to poor materials.

3. **Reliability** The flywheel is a critical component in the drivetrain, and a well-made unit will reduce clutch slippage, vibration, and transmission-related issues. A properly functioning flywheel ensures smoother power delivery and longevity of the clutch system.

4. **Warranty Coverage** If purchased from a reputable dealer or manufacturer, it may come with a warranty, providing peace of mind against defects. Toyota-authorized parts often include extended warranties.

5. **Prevents Further Damage** A worn or damaged flywheel can damage the clutch disc, pressure plate, and transmission components over time. Replacing it proactively can prevent costly repairs down the road.

6. **Improved Performance** A new flywheel ensures optimal engagement between the engine and transmission, reducing jerkiness and improving acceleration, especially in vehicles with manual transmissions.

7. **Ease of Installation** Since it is a direct replacement, installation is straightforward for a mechanic with basic tools. No special machining or adjustments are typically required unless the vehicle has unique mounting conditions.

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#### **Cons:**

1. **High Cost** Flywheels, especially OEM or high-quality aftermarket units, can be expensive. The price may range from **$200 to $500 **, depending on the source (Toyota dealership vs. aftermarket supplier). This can be a significant investment if labor costs are included.

2. **Labor-Intensive Installation** Replacing a flywheel often requires removing the transmission or engine components, which can be time-consuming. This may necessitate a tow to a shop or professional installation, adding to the total cost.

3. **Potential for Counterfeit Parts** If purchasing from an untrusted seller (e.g., eBay, Craigslist, or uncertified online marketplaces), there is a risk of receiving a **fake or low-quality flywheel**. This could lead to premature failure, clutch damage, or even transmission issues.

4. **Additional Components May Be Needed** In some cases, the clutch disc or pressure plate may also be worn and require replacement simultaneously. If not addressed, the new flywheel may not perform optimally, leading to repeated problems.

5. **Weight Considerations** Some aftermarket flywheels may be lighter than OEM units, which could slightly affect drivability (e.g., slight changes in vibration or engagement feel). However, this is usually negligible unless using extremely lightweight aftermarket parts.

6. **Limited Availability of Aftermarket Options** While aftermarket flywheels exist, not all suppliers carry the exact model for your engine variant. Researching compatibility is essential to avoid purchasing the wrong part.

7. **Potential for Misalignment** If not installed correctly, the flywheel can become misaligned with the clutch disc or transmission, leading to clutch slippage, grinding, or even transmission damage. Proper installation is critical.

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### **Conclusion**

The **Toyota 13405-0L021 flywheel sub-assembly** is a **necessary and beneficial replacement** if your vehicle exhibits symptoms of a failing flywheel (e.g., clutch slipping, vibration, grinding, or difficulty engaging gears). The **pros outweigh the cons** for most owners because:

- It **restores drivetrain performance** and prevents further damage.

- It **extends the life of the clutch and transmission**.

- It **ensures reliability** if sourced from a trusted supplier.

However, the **high cost and labor requirements** make it a **significant investment**, so it should only be undertaken when absolutely necessary. If the flywheel is still in **marginal condition**, delaying replacement may save money, but ignoring it could lead to **expensive transmission or clutch failures**.

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### **Recommendation**

1. **Verify Symptoms** Confirm that the issue is indeed a **failing flywheel** (not just a worn clutch disc or pressure plate). Symptoms like **vibration at idle, clutch slipping, or a grinding noise** are strong indicators.

2. **Choose the Right Supplier**

- **OEM (Toyota Dealership):** Most reliable but expensive.

- **Reputable Aftermarket Brands (e.g., ACDelco, DuraFly, Fel-Pro):** Often high quality at a lower cost. Ensure the part is **direct-fit** for your engine (1KD-FTV/2KD-FTV).

- **Avoid unknown sellers** to prevent counterfeit or damaged parts.

3. **Budget for Labor** If not comfortable installing it yourself, factor in **shop labor costs** (typically **$200 $400** depending on the shop and location). Some mechanics offer **transmission removal services** if needed.

4. **Consider a Clutch Kit** If the clutch disc or pressure plate is also worn, **replace them simultaneously** to avoid future issues. Some flywheel kits include these components.

5. **Check for Warranty** If buying from a dealership or authorized retailer, inquire about **warranty coverage** in case of premature failure.

6. **DIY vs. Professional Installation**

- **DIY:** Possible for experienced mechanics with the right tools (transmission jack, torque wrench, etc.).

- **Professional:** Recommended if unsure about alignment or if the transmission must be removed.

**Final Verdict:**

**Buy the 13405-0L021 flywheel if your vehicle requires it**, but **prioritize quality and proper installation** to maximize its lifespan. If the flywheel is still serviceable, delaying replacement may be a cost-saving measure but do so at your own risk. For most owners, **replacing it at the first sign of trouble is the safest long-term solution.**

Details:

GGN15,25,35,KUN1#,2#,3#1#,26,36. GGN50,60,KUN5#,6#,LAN50,TGN51,61. GGN15,25,35,KUN1#,1#,26,36. KDH2##,LH2##,TRH2##.

part #: 134050l021 prices

  • $58.38-$400.00

specifications cranshafengin:

  • for makes: Toyota
  • mpn: 134050l021
  • part type: Flywheel
  • oe/oem part number: 13405-0l021

seller cranshafengin:

  • city: Opa-Locka, Florida
  • rating: 100.0%
  • # reviews: 768

shipping cranshafengin:

  • service: USPS Ground Advantage
  • transit: 6-9 Days
  • class: Standard
  • carrier: USPS
  • type: Calculated
  • cost: $0.00

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offer cranshafengin:

  • options: Ship-to-home
  • quantity: 1
  • sold: 0
  • availability: In Stock
  • started: March 5, 2026

general cranshafengin:

  • Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
  • condition: New

returns cranshafengin:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted
for makes: toyota, part type: flywheel, oe/oem part number: 13405-0l021,
category: auto parts > car truck parts accessories > engines engine parts > crankshafts, sku: 19187524200393752,
Toyota 134050L021 Is Similar To:
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5 offers $58.38–$400.00 USD
  • New. Offer #1 priced at $400.00 + $0.00 shipping estimate = $400.00* total. GGN50,60,KUN5#,6#,LAN50,TGN51,61. FLYWHEEL SUB-ASSY.FREE SHIPPING
  • New. Offer #2 priced at $58.38 + $0.00 shipping estimate = $58.38* total. FREE SHIPPING
  • New. Offer #3 priced at $68.46 + $0.00 shipping estimate = $68.46* total. FREE SHIPPING
  • New. Offer #4 priced at $205.74 + $0.00 shipping estimate = $205.74* total. "Right" (RH) refers to the passenger's side.FREE SHIPPING
  • New. Offer #5 priced at $378.28 + $999.99 shipping estimate = $1378.27* total. KUN60R-NKMSHT GGN50,60,KUN5#,6#,LAN50,TGN51,61 07.2011 - 04.2015 NO. Condition:OEM 100% GENUINE NEW PART.+$999.99 shipping

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