Overview

ATI Accumulator Pistons

ATI Performance Products accumulator pistons are high performance, aluminum replacements for automatic transmission hydraulic systems designed to regulate pressure and ensure smooth, durable gear shifts. They replace weaker stock or factory plastic pistons that are prone to cracking, thus improving transmission reliability and providing a firmer, more consistent shift feel.

Key features:

* Durable construction: Machined from aluminum (rather than factory plastic) for increased strength
* Improved shifting: Regulate hydraulic pressure within the transmission circuit to cushion clutch pack engagement, reducing harshness
* Fixes common failures: Prevents transmission failure associated with cracked, broken, or worn plastic pistons
* Specific Applications: Available for specific positions, such as the forward accumulator piston in popular GM transmissions like the 4L60E and THM400
* These pistons are essential for high performance builds or for restoring consistent, reliable performance to stock transmissions

Applications

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