Federal Mogul Intermediate Servo Piston for Ford E4OD/4R100 1989-2004

This Federal Mogul Intermediate Servo Piston is a high-quality direct replacement for the OEM E9TZ-7D021-A in Ford E4OD and 4R100 automatic transmissions. This updated molded bonded rubber piston delivers reliable performance and addresses common wear issues that cause shifting problems.

Key features include:

• Molded bonded rubber construction for enhanced sealing and long-term durability
• Fixes harsh or delayed 2-3 shifts and poor band application caused by worn pistons
• Restores firm servo engagement to eliminate leaks and prevent band burnout
• Compatible with E4OD (1989-1997) and 4R100 (1998-2004) transmissions
• Fits Ford F-Series, Super Duty, E-Series vans, Bronco, and Excursion models

Perfect for professional rebuilds or DIY repairs, it ensures smooth, firm intermediate band apply and long-lasting operation in demanding applications.