ACDelco Automatic Transmission Reaction Sun Gear

The ACDelco Automatic Transmission Reaction Sun Gear is a replacement planetary gear component for automatic transmissions. The reaction sun gear is part of the planetary gearset. It meshes with the planet gears to help transfer torque and set the gear ratios the transmission uses to shift.

Key Features:

• Replacement sun gear for the transmission's planetary gearset
• Helps provide smooth, consistent gear changes and reliable power transfer
• Made to meet ACDelco's quality and durability standards for automatic transmission components
• Suitable for transmission repair and rebuild projects

ACDelco is General Motors' parts brand. It supplies transmission components designed for dependable performance and long service life. Replacing a worn or damaged reaction sun gear helps restore proper transmission operation and prevents further internal wear. Choose the individual part number that matches your transmission.