The most reasonably priced component used on the Civic 2004 (4) 4dr Lx Side Srs (ka) Srs Unit is the Bolt 6x20. Torx Eart.
The sub assemblies and components that make up this Srs Unit include this Unit Assy,srs, the most expensive part.
Some items from this specific schematic: Sensor Assy,front, Reel Assy,cable, Sensor Assy,front, Unit Assy,srs.