The Exhaust Manifold-air Injection Air Pump assembly is constructed from several parts from which the Pump Assy., Air is the most expensive.
The Nut,flange,8mm is the cheapest item from this partsfiche.
This Exhaust Manifold-air Injection Air Pump diagram displays the required parts for the Civic 1978 2dr1200 (ka) Exhaust Manifold-air Injection Air Pump.