KAWASAKI 13128-0021 Transmission Trans

( Manufacturer Part Number: 13128-0021 ), ( Part Type: Transmission Tran ), ( Country Of Origin: Japan )

Review KAWASAKI Transmission Trans Complete Oem fits KX450F 2006

The **Kawasaki 13128-0021 Transmission Assembly** for the **2006 Kawasaki KX450F** is a precision-engineered, high-performance component designed to deliver uncompromising durability and reliability in the most demanding off-road conditions. This transmission is a critical part of the KX450F s drivetrain, featuring a **6-speed sequential gearbox** with a **clutch assembly** that ensures seamless power transfer from the engine to the rear wheel, even under extreme stress. Crafted from high-grade steel and reinforced alloys, the transmission housing is built to withstand the rigors of aggressive riding, including deep mud, rocky terrain, and high-speed jumps, while maintaining optimal gear engagement and minimizing wear. The **synchronized shift mechanism** allows for quick, precise gear changes, reducing the risk of chain slippage or binding, which is essential for maintaining control during high-speed descents or rapid acceleration off jumps. This transmission is fully compatible with the KX450F s **DOHC, 455cc parallel-twin engine**, ensuring that the power output is efficiently channeled through the drivetrain without unnecessary friction or loss of torque. Whether used in competition racing, trail riding, or heavy-duty utility work, this transmission is engineered to handle the demands of the modern off-road enthusiast, providing the robustness and responsiveness required to push the limits of performance. For those seeking to restore or upgrade their 2006 KX450F, this genuine Kawasaki part is the ideal choice, offering the same level of quality and engineering excellence that Kawasaki is renowned for.

### Pros and Cons of buying a Kawasaki 2006 KX450F Transmission (Part Number: 13128-0021)

1. **OEM Quality and Reliability** Kawasaki is a well-known manufacturer of high-performance off-road motorcycles, and their transmissions are built to last under heavy loads and rough conditions. This part is designed to work seamlessly with the KX450F s engine and drivetrain, ensuring durability and performance.

2. **Direct Fitment** The part number (13128-0021) is specific to the 2006 KX450F, meaning it is a direct replacement with no modifications required. This eliminates the need for customization or additional adjustments, making installation straightforward.

3. **Proven Performance** The KX450F is a popular motocross bike, and its transmission has been tested extensively by riders and mechanics. Replacing it with an OEM part ensures that the bike will maintain its intended performance, including smooth shifting and power delivery.

4. **Warranty Coverage (if purchased new)** If you buy this part new from an authorized dealer or Kawasaki-approved supplier, it may come with a warranty, providing peace of mind against manufacturing defects.

5. **Ease of Installation** While transmission replacement is a complex job that typically requires mechanical expertise, the OEM part is designed to fit perfectly with the existing components, reducing the risk of compatibility issues.

6. **Resale Value** Using an OEM transmission helps maintain the bike s value, especially if you plan to sell it later. Aftermarket parts, while sometimes cheaper, can deter buyers looking for a fully stock or restored machine.

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1. **High Cost** OEM Kawasaki parts, especially for a transmission, are significantly more expensive than aftermarket alternatives. The price may be prohibitive for budget-conscious buyers or those who prioritize cost savings over brand reliability.

2. **Limited Availability** OEM parts can be harder to find, particularly if you re not purchasing directly from Kawasaki or an authorized dealer. This may require ordering online, which could involve shipping delays or additional fees.

3. **Complex Installation** Replacing a transmission is a labor-intensive process that requires specialized tools, mechanical skill, and often the assistance of a professional. DIYers may struggle with alignment, clutch adjustments, or chain tensioning, potentially leading to further damage or poor performance if not done correctly.

4. **No Upgrades** Unlike aftermarket transmissions, which may offer improved durability, lighter weight, or better shifting characteristics, the OEM part is essentially a replacement for a worn-out component. It won t enhance performance beyond the bike s original specifications.

5. **Potential for Counterfeit Parts** If purchasing from third-party sellers (e.g., eBay, Facebook Marketplace, or unverified online stores), there is a risk of receiving a counterfeit or refurbished part that doesn t meet OEM standards. Always verify the seller s reputation and part authenticity.

6. **Opportunity Cost** The expense of an OEM transmission could be allocated elsewhere, such as repairing other worn components (e.g., clutch, sprocket, or engine parts) or investing in a more reliable bike if the KX450F has significant underlying issues.

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Buying the **2006 Kawasaki KX450F OEM transmission (13128-0021)** is a reliable choice if you prioritize **quality, longevity, and compatibility** with your bike. It ensures that your KX450F will perform as intended and maintains its value, especially if you plan to keep or resell the motorcycle. However, the **high cost, complexity of installation, and limited availability** make it a less attractive option for those on a tight budget or without mechanical experience.

If you re confident in your DIY skills and have the budget, the OEM part is the safest route. Alternatively, if you re looking to save money and don t mind trading off some reliability, **high-quality aftermarket transmissions** (e.g., from brands like **Kawasaki Performance, DOT, or TZ Racing**) may offer a cost-effective alternative with similar performance. Always weigh the pros and cons against your specific needs, budget, and mechanical capabilities.

- **If you value OEM reliability and can afford it:** Purchase the **Kawasaki 13128-0021 transmission** from an authorized dealer or trusted online retailer (e.g., Kawasaki s official site, RockAuto, or a reputable parts store). Have a mechanic perform the installation if you re not experienced with transmission work.

- **If you re on a budget or prioritize cost savings:** Research **aftermarket transmissions** with strong reviews (e.g., Kawasaki Performance or DOT) and ensure they are compatible with your bike s year and model. Consider the total cost of labor versus part price.

- **If the bike has other major issues:** Evaluate whether restoring the transmission alone is worth it. If the engine, frame, or other components are worn, you may be better off investing in a used but reliable KX450F or a different bike.

Ultimately, the best choice depends on your priorities whether that s sticking to OEM parts for peace of mind or balancing cost and performance with aftermarket alternatives.

Details:

2006 Kawasaki KX450F Transmission. Comes as shown. Ready to use. Please look at the pictures closely and ask any necessary questions.

part #: 131280021 prices

• $49.95-$164.99

specifications transmissioncycleoi:

• for models: Kx450f
• for makes: Kawasaki
• for years: 2006
• mpn: 13128-0021
• part type: Transmission Tran
• country of origin: Japan

general transmissioncycleoi:

• condition: Used
• Motorcycle Scooter Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain Parts

shipping transmissioncycleoi:

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

returns transmissioncycleoi:

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

payments transmissioncycleoi:

• credit card: Visa
• other
• wallet: Paypal

seller transmissioncycleoi:

• rating: 99.5%
• city: New Tripoli, Pennsylvania
• # reviews: 1711

offer transmissioncycleoi:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: February 4, 2026
• quantity: 1
• best offers: True

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