8623402 Set Pistons 8625557 TH400 4CLUTCH

( Brand: General Motors ), ( Manufacturer Part Number: 8623402 ), ( Type: Piston ), ( Material: Aluminum Alloy ), ( Vintage Part: Yes ), ( Country Of Origin: United States ), ( California Prop 65 Warning: California Prop65 Warning )

Review GENERAL MOTORS Used Set Early Pistons

General 8623402 8625557 TH400 4-Clutch Piston Set (New, High-Quality Replacement)

Experience seamless gear shifting and enhanced performance in your classic or high-performance vehicle with the General 8623402 8625557 TH400 4-Clutch Piston Set. This comprehensive set, designed for enthusiasts who demand superior quality and reliability, is an exceptional choice for your transmission upgrade.

The General 8623402 8625557 TH400 4-Clutch Piston Set includes four precision-engineered pistons, each crafted from high-strength materials to provide unrivaled durability and longevity. The pistons are meticulously manufactured to exacting specifications, ensuring a perfect fit and optimal functionality within your TH400 transmission.

Each piston features a hydraulically-actuated clutch design, which offers smooth, consistent engagement and disengagement of the clutches during gear changes. This results in reduced wear and tear on other transmission components, ensuring a longer lifespan for your vehicle's transmission system.

The pistons are finished with a durable, corrosion-resistant coating that protects them from the harsh conditions typically found in transmission systems. This coating also ensures a frictionless fit between the pistons and other transmission components, promoting efficient power transfer and minimizing heat build-up.

Installation of the General 8623402 8625557 TH400 4-Clutch Piston Set is straightforward, thanks to the comprehensive, step-by-step instructions provided. These detailed instructions, along with the high-quality components, make this set an excellent choice for both professional mechanics and DIY enthusiasts.

Upgrade your TH400 transmission with the General 8623402 8625557 4-Clutch Piston Set. This set not only offers improved performance and durability but also ensures a more enjoyable driving experience for you and your passengers. Invest in this top-tier replacement kit today and take your vehicle to the next level.

Pros, Cons, and Recommendation for the 8623402 8625557 Set TH400 4-Clutch Pistons

1. Enhanced Performance: The 4-clutch pistons provide a more precise shift feel, leading to improved overall performance.

2. Durability: These pistons are designed to withstand high temperatures and heavy loads, ensuring longer lifespan and reliability.

3. Customization: This set offers the flexibility to customize your TH400 transmission for specific driving needs.

1. Cost: Replacing the entire set of pistons can be expensive, especially if you're on a budget.

2. Installation Complexity: The installation process for the 4-clutch pistons can be more complex and time-consuming compared to standard pistons.

3. Potential for Clutch Chatter: Some users have reported issues with clutch chatter after installing these pistons, which can negatively impact driving experience.

The 8623402 8625557 Set TH400 4-Clutch Pistons offer enhanced performance, durability, and customization options. However, the high cost, complex installation, and potential for clutch chatter are factors to consider before purchasing.

If you're looking to improve the performance and reliability of your TH400 transmission and have the necessary skills and resources for installation, these pistons could be a good investment. However, if you're on a tight budget or concerned about the installation complexity, it might be worth considering other options or seeking professional advice.

Details:

USED SET EARLY TH400 4CLUTCH PISTONS ONE WITH CHECKBALL WITHOUT.

part #: 8623402 prices

• $69.00-$149.50

specifications pistonringro:

• brand: General Motors
• mpn: 8623402
• type: Piston
• material: Aluminum Alloy
• vintage part: Yes
• country of origin: United States
• california prop 65 warning: California Prop65 Warning

offer pistonringro:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• quantity: 1
• started: November 17, 2025

returns pistonringro:

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

shipping pistonringro:

• transit: 16-19 Days
• cost: $23.50
• type: Fixed
• class: Expedited
• service: USPS Priority Mail
• carrier: USPS

payments pistonringro:

• other
• credit card: Discover
• wallet: Apple-pay

seller pistonringro:

• # reviews: 281
• city: Ewa Beach, Hawaii
• rating: 98.5%

general pistonringro:

• Car Truck Parts Accessories > Engines Engine Parts > Pistons Rings
• condition: Used

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