Aluminum Locker Spring 78# Yellow

The Winters Aluminum Locker Spring 78# Yellow (part number 1280Y) is a precision-engineered locking mechanism component designed for high-performance differential systems and electronic locking differentials. This component is essential for drivers and mechanics building or maintaining vehicles with advanced drivetrain control, particularly in off-road, racing, or extreme-duty applications where wheel lock engagement and disengagement must occur reliably under variable load conditions.

The 78-pound spring rate makes this part suitable for mid-to-heavy-duty setups where consistent actuation force is critical to locker performance. Constructed from aerospace-grade aluminum, this locker spring delivers the strength-to-weight ratio necessary for responsive differential locking without adding unnecessary mass to the drivetrain. The yellow color coding indicates the specific spring rate specification, allowing technicians to quickly identify and verify the correct component during assembly or rebuild work.

At just 0.15 lbs and compact dimensions (2.45 × 1.35 × 3.05 inches), this spring integrates seamlessly into tight differential housings while maintaining the mechanical advantage required to reliably trigger locking mechanisms under acceleration, deceleration, and cornering forces. This Winters component benefits serious enthusiasts, professional mechanics, and off-road competitors who demand consistent locker engagement in extreme terrain or high-performance road applications.