Stellar Automotive Group 4F27E/FNR5 OD/Direct/3-4 Balance Piston fits Ford

Stellar Automotive Group 4F27E/FNR5 Overdrive/Direct/3-4 Clutch Balance Piston – Compatible for Ford & Mazda 2000-Up

Stop the harsh “bang” into higher gears, delayed upshifts, and burnt overdrive/direct clutches with this precision bonded balance piston from Stellar Automotive Group.

This is the critical balance piston inside the overdrive/direct/3-4 clutch drum on all 4F27E and FNR5 transmissions. The factory piston commonly cracks or loses its bond under heat and mileage, causing internal leakage that slams the clutch pack on apply — leading to rapid friction failure and poor performance in 3rd, 4th, and 5th gears. This direct-replacement molded piston with permanently bonded rubber seal restores perfect clutch timing, smooth transitions, and reliable shifting for daily driving or light towing.

Perfect fit for popular models including:

• Ford Focus, Escape, Fusion, Transit Connect
• Mazda 3, 5, 6, Tribute

Symptoms of a failing OD/Direct/3-4 balance piston:

• Hard bang on 3-4 or 4-5 upshift
• Slip or flare in higher gears
• Delayed then harsh engagement
• Burnt OD/direct frictions on teardown

Don’t let a $40 piston destroy your clutch pack — install the Stellar Automotive Group bonded balance piston and shift smoothly through every gear.

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

Add this critical 4F27E/FNR5 rebuild part to your cart today and enjoy crisp, reliable upshifts!