E4OD/4R100 Overdrive Clutch Piston fits Ford 89-04

E4OD/4R100 Overdrive Clutch Piston – Compatible for Ford Super Duty 1989-2004

Stop overdrive slip, flare on 3-4 upshifts, and burnt overdrive clutches with this precision molded overdrive clutch piston from Stellar Automotive Group.

The factory overdrive piston is prone to cracking or lip seal failure under heavy towing and torque, causing internal leakage that weakens overdrive engagement — leading to slipping, harsh shifts, and rapid friction wear. This direct-replacement molded piston features a permanently bonded rubber sealing lip that stays flexible and leak-free, restoring full apply pressure for crisp 3rd-to-4th transitions and solid overdrive performance even under max loads.

Perfect fit for popular models including:

• Ford F-250, F-350, F-450, F-550 Super Duty
• Ford Excursion & E-Series vans
• 7.3L Power Stroke, 5.4L, 6.8L V10 applications (1989-2004)

Symptoms of a failing overdrive piston:

• Flare or slip on 3-4 upshift
• No overdrive engagement or delayed lockup
• Burnt overdrive frictions on teardown
• Harsh shifts when overdrive finally grabs

Don’t let a $50 piston cost you a $600 clutch pack — install the Stellar Automotive Group bonded overdrive piston and keep overdrive locked in strong.

Add this essential E4OD/4R100 rebuild part to your cart today and tow with confidence!