FNR5/FN4A-EL Intermediate/OD Servo Piston fits Mazda

FNR5/FN4A-EL Intermediate/Overdrive Servo Piston – Compatible for Mazda & Ford 2001-2012

Fix harsh 3-4 or 4-5 shifts, delayed band apply, and burnt intermediate/overdrive bands with this upgraded molded servo piston.

The factory cast piston with separate lip seal is notorious for cracking, hardening, and leaking over time — causing weak or no apply in 3rd, 4th, and 5th gears. This direct-replacement molded piston features a permanently bonded rubber sealing lip that stays soft and leak-free for decades, restoring instant, firm servo engagement every time. Perfect for high-mileage Mazda 3/5/6 and Ford Escape/Fusion models.

Perfect fit for popular models including:

• Mazda 3, 5, 6, Tribute
• Ford Escape, Fusion

Symptoms of a failing servo piston:

• Harsh or delayed 3-4 or 4-5 upshift
• Slipping or no 4th/5th gear
• Burnt intermediate or overdrive band on teardown
• Servo cover leakage

Don’t fight old servo seals any longer — upgrade to the modern molded design and make your shifts crisp and reliable again.

Add this must-have FNR5/FN4A-EL servo upgrade to your cart today and feel the difference on every upshift!