GMA Brake Caliper O-Ring Seal Kit
O-ring and seal failure is the primary reason hydraulic calipers develop leaks or lose consistent pressure over time. GMA replacement seal kits supply precision-fit O-rings and seals matched to each caliper’s internal geometry – restoring the pressure-tight hydraulic circuit that clean, fade-free braking depends on.
Key Features
- Replacement O-ring and seal kit for GMA 2-piston front/rear and 4-piston “F” caliper models
- Precision-fit seals matched to each caliper’s internal bore geometry
- Restores hydraulic integrity to leaking or weeping GMA brake calipers
- Direct replacement – no modification required for installation
Technical Specifications
- Application: GMA 2-piston front/rear calipers and “F” series 4-piston calipers
- Includes: O-rings and seals for one complete caliper
- Made in: USA
Fitment Notes
- Select the correct seal kit for your specific GMA caliper type – seal dimensions differ between 2-piston and F-caliper models
- Clean caliper bore thoroughly before installing new seals to prevent contamination
- Review the Fitment tab for the complete caliper compatibility breakdown
John M. –
Exactly what I needed for my 1981 FXWG with aftermarket GMA calipers.