Long term fix for a common wear area in Toyota transmissions.
Accumulator Piston

Fits Toyota U140, U240, U241, U150, U151, U250, A750, A760, A761, A960 and AB60  
  • Accumulator circuit leaks 
  • Shift feel complaints including soft shifts, flare shifts, slide bump shifts 
  • Burnt friction discs
Includes one hardened steel replacement accumulator piston and sealing ring
U140, U240, U241 requires 2 pistons
U150, U151, U250 requires 3 pistons
A750, A760, A761, A960, AB60 
requires 1 piston
The original Toyota accumulator pistons have no seals and rely solely on the close tolerances of the components, (when new) to control system leaks. 

However, over time and with use, the soft aluminum accumulator pistons and the valve body bores wear, creating leaks resulting in shift feel complaints and burnt friction discs.

The TransGo solution utilizes made-in-USA hardened steel accumulator pistons fitted with scarf-cut sealing rings to provide a good seal in worn out valve body bores, even in a less than perfect bore that would normally damage any rubber seals. 
©TransGo. All rights reserved.