This one-piece, rubber-to-metal bonded piston is designed to hydraulically engage clutches to activate the gearshift. It features a compact, one-piece design that:

• Reduces the number of leak paths
• Simplifies assembly
• Improves reliability
• Enables more compact design and configuration

Our Unipiston replaced the multi-component pistons and seals used in automatic transmission units with a single-piece bonded, sealed piston, delivering more reliable performance with lower in-place cost. The single-piece construction simplifies assembly and reduces potential leak paths.