Wilwood GS Compact Master Cylinder Rebuild Kit - Bore Size .750 (3/4 Inch)

This kit is specifically designed for the Wilwood GS series master cylinders.

The bore size for this kit is .750 inches (3/4 inch).

The kit includes a new piston, seal, spring, pushrod, snap ring, and dust bellows.

No, this kit is exclusively for Wilwood GS series master cylinders with the specified bore size. Using it on incompatible cylinders will result in failure.

Installation requires mechanical aptitude and careful attention to detail. It is recommended to consult a service manual or seek professional assistance if you are unfamiliar with brake system repairs.

If leaks persist, inspect the master cylinder bore for damage (scratches, corrosion) that the new seals cannot overcome. The master cylinder housing itself might be damaged and require replacement.

Master cylinders typically do not require regular rebuilding unless they show signs of wear, leakage, or performance issues. Rebuilding is a repair, not routine maintenance.

Ensure all seals were installed correctly and oriented properly. Inspect the master cylinder bore for deep scratches or corrosion that may prevent a proper seal. The housing may need replacement.

The brake system may not be fully bled. Perform a thorough brake bleeding procedure. Check for air trapped in the lines or master cylinder.

Verify the dust bellows and associated seals are correctly installed and intact. A damaged bellows or seal will allow fluid to escape.

Ensure the correct lubricant (brake fluid) is used on the seals. Do not force components; check for any obstructions or misalignment.