Piston Return Spring

The Piston Return Spring (SG-1078) is a precision-engineered component designed for use in various transmission systems. It is essential for applications where reliable piston actuation is required, making it suitable for builders working on custom builds or performance upgrades. This spring plays a critical role in ensuring consistent hydraulic engagement and disengagement cycles.

Constructed to exacting tolerances, the piston return spring interacts with transmission hydraulic pressure to control piston stroke and reset timing. Its compact dimensions and lightweight design make it ideal for internal clutch or brake actuator applications where space is limited. The spring's performance characteristics can significantly influence shift feel and clutch pack pressure modulation.

Transmission rebuilders and performance enthusiasts will find this spring beneficial when restoring factory internals or upgrading to performance valve bodies. Proper selection of the spring rate is crucial for achieving the desired line pressure feel and apply timing, particularly in various compatible transmission systems.