This kit typically includes a complete set of sealing and maintenance components required during pump overhaul to prevent fuel leakage and maintain stable fuel pressure. Common parts included in the kit are O-rings (approximately 20–30 pieces), fuel pump gaskets (5–8 pieces), copper sealing washers (6–12 pieces), shaft oil seals (1–2 pieces), delivery valve seals (6 pieces), and various small sealing rings and washers used in different pump sections.
