Alko hydraulic caliper piston suits all models of the Al-ko hydraulic calipers. Al-ko caliper pistons are not interchangeable with any other brand of caliper.
What causes hydraulic piston failure?
- Rubber seal degradation.
- Water ingress in a hot piston during rapid cooling.
- Hydroscopic Brake Fluid.
Furthermore, these associated spare parts may also be required.
Finally, the piston seal installation is quite difficult. Couplemate uses a silicon-based lubricant on the outside of the piston before insertion.