Line pressure stability matters when a GM overdrive transmission is being used in a stock rebuild, street car, or performance build. This TCI billet 13-vane rotor pump upgrade increases pump fluid volume and adds stronger pump components to help maintain consistent pressure at higher rpm.

TCI 373401 Billet 13-Vane Rotor Pump Upgrade Features:

• Fits GM 200-4R, 700R4, 4L60, 4L60E, 4L65E, and 4L70E transmissions
• 13-vane billet rotor design
• Increases pump fluid volume
• Helps maintain consistent line pressure
• Hardened pump vane rings
• Direct replacement for stock or performance-upgraded applications
• Works with factory 10- and 13-vane pump applications