1974 Honda CB450K — Maîtres-cylindres et pièces de réfection

Identify the unit actually fitted and confirm its service requirements before selecting kit 45530-377-305. The listing gives application without a complete internal piece list or universal-master interchange statement. Establish compatibility and essential contents for that specific master instead of choosing from year alone.

Compare the removed diaphragm or O-ring and the retained cap arrangement with their individual references. Diaphragm 45520-300-000 is also included with one round cap package. Confirm required sealing coverage and any unlisted dimensions before adding separate parts or a replacement cap.

Its description makes the brake switch, banjo bolt and washers separate and provides no mirror mount. Match those connections and any mirror requirement to the planned installation. Confirm the required hydraulic and attachment details; model-listed reservoir or internal service parts are not established as compatible with this universal unit.