The Piston Cup Backer is a vital internal component of the standard Alpine® 3″ cylinder, designed to support and cushion the piston during continuous operation. As a common wear item, it should be replaced during cylinder rebuilds to maintain optimal performance and prevent premature failure.
Key Features:
Compatible with Alpine® 3″ round body cylinders
Durable Construction: Built to withstand high-cycle environments
Rebuild Essential: Replace regularly to extend cylinder life and performance
Cushioning Support: Helps absorb operational stress and reduce wear on internal parts
Keep your cylinder running smoothly—replace worn backers as part of routine maintenance for long-term reliability.
