Stellar Automotive Group CD4E 2-4 Servo Piston fits Ford Mazda 00-08

Stellar Automotive Group CD4E 2-4 Servo Piston (2 Rings) – Compatible for Ford & Mazda 2000-2008

Stop harsh 2-3 & 3-4 shifts, delayed band apply, and burnt 2-4 bands with this precision molded ONE-piston from Stellar Automotive Group.

This is the critical balance piston with dual rings for the 2-4 servo in all CD4E transmissions. The factory piston commonly cracks or loses seal integrity under heat and mileage, causing internal leakage that slams the 2-4 band on apply — leading to rapid band failure and that classic “bang” on upshifts. This direct-replacement molded piston with permanently bonded dual-ring seals restores perfect servo timing, smooth band engagement, and reliable performance even in high-mileage applications.

Perfect fit for popular 2000-2008 models including:

• Ford Escape, Focus, Contour, Mondeo, Cougar
• Mazda Tribute

Symptoms of a failing 2-4 servo ONE-piston:

• Harsh or delayed 2-3 & 3-4 upshifts
• Slipping or no 3rd/4th gear
• Burnt 2-4 band on teardown
• Servo leakage or low pressure

Don’t let a $40 piston destroy your 2-4 band — install the Stellar Automotive Group dual-ring piston and shift crisp and smooth again.

Note: All parts are distributed, not designed or manufactured, by Stellar Automotive Group.

Add this must-have CD4E servo upgrade to your cart today and feel the difference on every upshift!