# ISO 6550:1980 — Withdrawn and superseded ISO standards For ISO 6550:1980, item title is Road vehicles — Glow plugs M 12x1,25 and M 14x1,25 sheath type and cylinder head housing dimensions; status code is 9599; successor is ISO 6550:1989; withdrawn / published date is 1980-10-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 6550:1980 _(verified: appears in the quote below)_ - **Item title:** Road vehicles — Glow plugs M 12x1,25 and M 14x1,25 sheath type and cylinder head housing dimensions _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6550:1989 - **Withdrawn / published date:** 1980-10-01 _(verified: appears in the quote below)_ ## What the source says > 12945,IS,,ISO 6550:1980,"Road vehicles — Glow plugs M 12x1,25 and M 14x1,25 sheath type and cylinder head housing dimensions","Véhicules routiers — Bougies de préchauffage M 12x1,25 et M 14x1,25 type à fourreau et dimensions des logements dans la culasse",1980-10-01,1,['43.060.50'],ISO/TC 22,9599,,[12946],"['en','fr']",3, ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).