# ISO 6550-4:2005 — Withdrawn and superseded ISO standards

For ISO 6550-4:2005, item title is Road vehicles — Sheath-type glow-plugs with conical seating and their cylinder head housing — Part 4: M8 x 1 glow-plugs; status code is 9599; successor is ISO 6550-4:2009; withdrawn / published date is 2005-04-25, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6550-4:2005 _(verified: appears in the quote below)_
- **Item title:** Road vehicles — Sheath-type glow-plugs with conical seating and their cylinder head housing — Part 4: M8 x 1 glow-plugs _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 6550-4:2009
- **Withdrawn / published date:** 2005-04-25 _(verified: appears in the quote below)_

## What the source says

> 35091,IS,,ISO 6550-4:2005,Road vehicles — Sheath-type glow-plugs with conical seating and their cylinder head housing — Part 4: M8 x 1 glow-plugs,"Véhicules routiers — Bougies de préchauffage à fourreau et à siège conique, et leur logement dans la culasse — Partie 4: Bougies M8 x 1",2005-04-25,1,['43.060.50'],ISO/TC 22,9599,,[50144],"['en','fr']",9,"<p>ISO 6550-4:2005 specifies the main characteristics of M8 x 1 sheath-type glow-plugs with conical seating and their housing in the cylinder head, for use with diesel (compression-ignition) engines.</p>"

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).