Stellar Automotive Group U140/U150/U151 Underdrive Clutch Outer Piston fits Toyota

Stellar Automotive Group U140/U150/U151 Underdrive Clutch Outer Piston (Bonded) – Compatible for Toyota & Lexus 1998-Up

Stop slipping in 1st & 2nd gears, delayed takeoff, and burnt underdrive clutches with this precision bonded outer piston from Stellar Automotive Group.

This direct-replacement piston is the critical outer apply component for the underdrive clutch pack in all U140E, U150E, and U151E transmissions. The factory piston commonly cracks or loses its bond under heat and mileage, causing internal leakage that weakens underdrive apply — leading to no forward movement, harsh engagement, and rapid clutch failure. This upgraded molded piston with permanently bonded rubber seal restores full line pressure, delivers instant takeoff power, and protects your underdrive clutch pack for reliable daily driving or light towing.

Perfect fit for popular models including:

• Toyota Highlander, Camry, RAV4, Sienna, Solara
• Lexus RX300, RX330

Symptoms of a failing underdrive outer piston:

• Delayed or no forward movement
• Slipping or flare on takeoff
• Harsh engagement when it finally grabs
• Burnt underdrive frictions on teardown

Don’t let a $50 piston destroy a $500 clutch pack — install the Stellar Automotive Group bonded underdrive outer piston and get moving strong from the start.

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

Add this essential U140/U150/U151 rebuild part to your cart today and drive with full confidence!