3845855 Powerglide Reverse Piston Low/reverse 5CLUTCH

( Brand: General Motors ), ( Type: Low/reverse 5 Clutch Piston ), ( Manufacturer Part Number: 3845855 ), ( Material: Aluminum ), ( Vintage Part: Yes ), ( Transmission Type: Automatic ), ( Placement On Vehicle: Internally In Transmisson ), ( Country Of Origin: United States ), ( Performance Part: No ), ( California Prop 65 Warning: California Prop65 Warning )

Review GENERAL MOTORS Used Powerglide Low/reverse Piston

The 3845855 Powerglide Low/Reverse 5-Clutch Piston is an essential component of a Powerglide automatic transmission system. This piston group is specifically designed for vehicles that require low or reverse gear engagement. The piston assembly consists of five friction clutches, each with its unique function in facilitating smooth gear shifts between forward and reverse gears.

The piston's low clutch is responsible for engaging the first and second gears during normal driving conditions. This clutch features a robust, heat-resistant friction material that ensures efficient power transfer from the engine to the transmission. Its precise design allows for synchronization with the second gear clutch, resulting in seamless gear changes.

The reverse clutch is responsible for engaging the reverse gear. This clutch is engineered with a specialized friction material that provides strong reverse engagement while minimizing wear and tear on the transmission. Its precise engagement ensures smooth and effective reversing of the vehicle.

The remaining three clutches of the piston group are the third, fourth, and fifth clutches. These clutches facilitate engagement between the respective gears. Each clutch incorporates a high-performance friction material that ensures efficient power transfer and reduces wear on the transmission. The clutches are meticulously designed to synchronize with each other, promoting smooth gear shifts and improved overall transmission performance.

The Powerglide Low/Reverse 5-Clutch Piston is manufactured to meet or exceed OEM specifications, ensuring the highest level of quality and reliability. Its robust construction and superior materials make it a suitable replacement for worn or damaged pistons in Powerglide automatic transmissions. Furthermore, this piston group is suitable for various vehicle applications, making it a versatile and valuable addition to any transmission repair or rebuild project.

In summary, the 3845855 Powerglide Low/Reverse 5-Clutch Piston is a crucial component in the Powerglide automatic transmission system, designed to facilitate smooth and efficient engagement of low and reverse gears. Its high-performance friction clutches are precisely engineered for synchronization, ensuring seamless gear shifts and improved overall transmission performance. This piston group is manufactured to meet or exceed OEM specifications, making it a reliable and versatile solution for Powerglide automatic transmission repairs or rebuilds.

Buying a 3845855 Powerglide low/reverse 5-clutch piston involves considering several factors, including its advantages, disadvantages, and an ultimate recommendation.

1. Improved transmission performance: This piston helps in enhancing the low-end torque and overall performance of your Powerglide transmission.

2. Enhanced cooling capabilities: The piston's design allows for improved cooling, which can extend the lifespan of the transmission and prevent overheating.

3. Smoother shifting: The 5-clutch design ensures smoother shifting between gears, resulting in a more enjoyable driving experience.

1. Cost: Replacing the stock piston with a high-performance 5-clutch piston can be expensive, as it requires specialized parts and labor.

2. Complex installation: Installing a 5-clutch piston can be a time-consuming and intricate process that requires a high level of mechanical expertise.

3. Potential for noise: The 5-clutch design may generate more noise compared to a standard piston, which could be a concern for some drivers.

Ultimately, the decision to purchase a 3845855 Powerglide low/reverse 5-clutch piston depends on your specific needs and preferences. If you prioritize improved transmission performance, smoother shifting, and enhanced cooling capabilities, then the investment in a high-performance piston may be worthwhile. Conversely, if you are on a tight budget or prefer a quieter driving experience, you may want to consider sticking with the stock piston.

In conclusion, while the 3845855 Powerglide low/reverse 5-clutch piston offers several advantages, it also comes with some disadvantages, including cost, complex installation, and potential for increased noise. When making your decision, weigh the benefits against the drawbacks and consider the unique requirements of your vehicle and driving style. If the benefits outweigh the costs, a high-performance piston may be the right choice for you. Otherwise, the stock piston should serve you well.

Details:

part #: 3845855 prices

• $42.75-$375.00

specifications addedclutch:

• brand: General Motors
• type: Low/reverse 5 Clutch Piston
• manufacturer part number: 3845855
• material: Aluminum
• vintage part: Yes
• transmission type: Automatic
• placement on vehicle: Internally In Transmisson
• country of origin: United States
• performance part: No
• california prop 65 warning: California Prop65 Warning

seller addedclutch:

• # reviews: 448
• rating: 99.6%
• city: Ewa Beach, Hawaii

offer addedclutch:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: May 30, 2026
• quantity: 1

shipping addedclutch:

• cost: $17.50
• type: Fixed
• carrier: USPS
• transit: 9-14 Days
• class: Expedited
• service: USPS Priority Mail

payments addedclutch:

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

general addedclutch:

• condition: Used
• Transmission Drivetrain > Clutch Parts Kits > Additional Clutch Parts

returns addedclutch:

• policy: No Returns

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