1980 Honda CB400TA Hawk Valvetrain Parts

The original head uses four seals at the intake positions covered by reference 12208-413-003. The featured seal is sold individually; the two exhaust positions have a different factory reference.

The original head has two exhaust-valve positions, one for each cylinder, using reference 14721-413-000. Inspection determines whether one or both need replacement; keep that requirement separate from the four intake-valve positions.

Identify the replacement head’s application and valve references before ordering. The original 1980 head uses different intake and exhaust seals; if the head’s history is unknown, have the valves and guides assessed rather than selecting by frame year alone.