Honda GL1100 Goldwing Master Cylinder Piston/Cup Set - 45530-422-305

Front brake master-cylinder rebuild set for the GL1100 Gold Wing: the piston, cups, spring and seals that restore a soft, spongy or leaking master cylinder to full pressure. Rebuilding is far cheaper than a new master cylinder and keeps the original casting on the bike.

Fitment

• Honda GL1100 Gold Wing 1980–1983 (Standard, Interstate, Aspencade)
• Replaces Honda part number 45530-422-305 — check the number on your parts fiche, as GL1000 and GL1200 use different bores

Details

• Quality aftermarket kit made to OEM specification (not a Honda-branded part)
• Includes piston, primary and secondary cups, spring and circlip

Tips

Hone the bore lightly and clean it with brake fluid before assembly; never use petroleum-based solvents on the new cups. Replace the master-cylinder boot (45522-422-000) and bleed the system with fresh DOT 4.

Shipping & returns

Sourced to order from our official Honda parts supplier and dispatched within 10 business days, then shipped worldwide with tracked courier (DHL, UPS or FedEx) from Portugal. 30-day returns on unused parts in original packaging. See our shipping policy and return policy. Not sure it fits? Send us your frame number before you order.