KOYO 34201A Partial Thrust Bearing Kit 8623922 TH400 4L80E 1965-UP

( Brand: Koyo ), ( Manufacturer Part Number: 34201A ), ( Items Included: Thrust Bearing Kit ), ( Fitment Type: Direct Replacement ), ( Transmission Type: Automatic ), ( Type: Rebuild Kit ), ( Ipn: 8623922 ), ( Manufacturer Warranty: Yes ), ( Oe/oem Part Number: K34907b ), ( Country Of Origin: United States )

Review KOYO Partial Thrust Bearing Kit Pieces 1965-up fits TURBO 400

Introducing the Koyo 34201A TH400 Turbo 400 Partial 4L80E Thrust Bearing Kit, an essential upgrade for your 1965 and up vehicles with TH400 or 4L80E transmissions. This kit is specifically designed for applications that use a turbocharger, ensuring optimal performance and durability.

The Koyo 34201A Thrust Bearing Kit consists of high-quality thrust bearings engineered to handle the increased torque and stress generated by turbocharged engines. These bearings are manufactured using advanced materials and precision machining techniques to ensure a perfect fit and long-lasting performance.

The kit includes two thrust bearings, one for the transmission input shaft and the other for the torque converter output shaft. Both bearings are designed to provide excellent load capacity and reduce friction, ensuring smooth and efficient power transfer between the engine and transmission.

The Koyo 34201A Thrust Bearing Kit is an excellent choice for enthusiasts looking to upgrade their stock components to handle the added power and stress of a turbocharged engine. These bearings are compatible with a wide range of applications, making them a versatile solution for various vehicle configurations.

Installation of the Koyo 34201A Thrust Bearing Kit is straightforward, and the kit comes with clear installation instructions to make the process as hassle-free as possible. With this upgrade, you can enjoy the increased power and performance of your turbocharged engine while having peace of mind knowing that your transmission is supported by high-quality components.

In conclusion, the Koyo 34201A TH400 Turbo 400 Partial 4L80E Thrust Bearing Kit is a must-have upgrade for any vehicle with a TH400 or 4L80E transmission and a turbocharged engine. This kit provides excellent load capacity, reduces friction, and ensures smooth and efficient power transfer between the engine and transmission. With its high-quality materials, precision manufacturing, and straightforward installation, the Koyo 34201A Thrust Bearing Kit is an excellent investment for any vehicle enthusiast looking to maximize the performance of their turbocharged engine.

Koyo 34201A TH400 Turbo 400 Partial 4L80E Thrust Bearing Kit (1965-Up): A Comprehensive Analysis

The Koyo 34201A TH400 Turbo 400 Partial 4L80E Thrust Bearing Kit is designed for vehicles with a TH400 transmission and a 4L80E torque converter. This kit is suitable for models from 1965 and up. In this analysis, we will discuss the pros and cons of buying this particular thrust bearing kit.

1. High-Quality Material: The Koyo 34201A kit is made of high-grade materials, ensuring durability and reliability. Koyo is a well-known brand in the automotive industry, known for producing top-tier components.

2. Comprehensive Kit: This kit includes not only the thrust bearing but also the necessary seals and gaskets, making it a more convenient option for customers.

3. Suitability for a Wide Range of Vehicles: The Koyo 34201A kit is compatible with various models from 1965 and up, making it a versatile choice for many vehicle owners.

4. Reduced Vibration: A faulty thrust bearing can cause significant vibration, negatively impacting the driving experience. By installing a new thrust bearing, you can help reduce or eliminate these unwanted vibrations.

1. Cost: The Koyo 34201A TH400 Turbo 400 Partial 4L80E Thrust Bearing Kit might be more expensive compared to some aftermarket alternatives. However, the price difference is often outweighed by the benefits of using a high-quality OEM-equivalent part.

2. Installation Complexity: Installing a thrust bearing can be a challenging task, especially for those without extensive mechanical experience. It may require specialized tools and a good understanding of the transmission system.

3. Labor Costs: If you're not confident in your ability to install the kit yourself, you may need to hire a professional mechanic, which could add to the overall cost.

The Koyo 34201A TH400 Turbo 400 Partial 4L80E Thrust Bearing Kit is an excellent investment for vehicle owners who prioritize the durability and performance of their transmission system. While it may come with a higher price tag and installation complexity, the benefits far outweigh these challenges. By choosing a high-quality, comprehensive kit from a reputable brand like Koyo, you can help ensure a smoother, more vibration-free driving experience for your vehicle.

If you are looking for a reliable, long-lasting thrust bearing solution for your TH400 transmission and 4L80E torque converter, the Koyo 34201A TH400 Turbo 400 Partial 4L80E Thrust Bearing Kit is an excellent choice. Although it might require a professional installation and involve some upfront cost, the peace of mind and improved driving experience it offers are well worth the investment.

Details:

This kit includes 3 pieces of thrust bearings with part numbers 8623922, 8623921, and 8623920, as well K34907B. The TH400 Turbo 400 PARTIAL 4L80E Thrust Bearing Kit by Koyo is a direct replacement rebuild kit for automatic transmissions. It comes with a manufacturer warranty and is designed for 1965-up vehicles. Made in the USA, this high-quality kit is essential for ensuring smooth transmission performance your vehicle.

part #: 34201a prices

• $31.99-$60.99

specifications gearreb:

• for models: Turbo, 400
• brand: Koyo
• mpn: 34201a
• items included: Thrust Bearing Kit
• fitment type: Direct Replacement
• transmission type: Automatic
• type: Rebuild Kit
• ipn: 8623922
• manufacturer warranty: Yes
• oe/oem part number: K34907b
• country of origin: United States

general gearreb:

• condition: New
• Car Truck Parts Accessories > Transmission Drivetrain > Transmission Rebuild Kits

offer gearreb:

• started: January 15, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock

shipping gearreb:

• class: Standard
• transit: 6-12 Days
• carrier: USPS
• service: USPS Ground Advantage
• cost: $0.00
• type: Calculated

seller gearreb:

• city: Escalon, California
• rating: 0.0%
• # reviews: 0

returns gearreb:

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

payments gearreb:

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

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