128-3446: Balance Piston

Description: The Balance Piston helps to distribute and control the hydraulic pressure within the transmission. It is typically located in the valve body, which is the hydraulic control center of the transmission. The balance piston helps ensure balanced hydraulic pressure between different clutches and brakes within the planetary gear set, promoting smooth gear shifting and efficient power transfer. Attributes: • Maintains hydraulic pressure balance and prevents fluid loss or contamination. • Made from durable materials that can withstand high hydraulic pressures and forces. Application: The Balance Piston in a Planetary Transmission system is to regulate and distributes hydraulic pressure to engage and disengage the various clutch packs and brake bands within the planetary gear set and is mainly used in Cat 784B, 784C, 785, 785B, 785C, 785D, 789, and 789B Trucks.