ISO 6550-3:2013

INTERNATIONAL ISO
STANDARD 6550-3
Fourth edition
2013-11-01
Road vehicles — Sheath-type glow-
plugs with conical seating and their
cylinder head housing —
Part 3:
M10 glow-plugs
Véhicules routiers — Bougies de préchauffage à fourreau et à siège
conique et leur logement dans la culasse —
Partie 3: Bougies M10
Reference number
ISO 6550-3:2013(E)
©
ISO 2013

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ISO 6550-3:2013(E)

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ii © ISO 2013 – All rights reserved

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ISO 6550-3:2013(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Dimensions and tolerances . 1
3.1 Glow-plugs . 1
3.2 Cylinder head housing . 3
3.3 Threads . 4
4 Installation tightening torque . 5
Annex A (normative) Pin terminal dimensions . 7
Annex B (normative) Alternative pin terminals . 8
© ISO 2013 – All rights reserved iii

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ISO 6550-3:2013(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
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any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
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assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 1,
Ignition equipment.
This fourth edition cancels and replaces the third edition (ISO 6550-3:2009), which has been
technically revised.
ISO 6550 consists of the following parts, under the general title Road vehicles — Sheath-type glow-plugs
with conical seating and their cylinder head housing:
— Part 1: M14 × 1,25 glow-plugs
— Part 2: M12 × 1,25 glow-plugs
— Part 3: M10 glow-plugs
— Part 4: M8 × 1 glow-plugs
iv © ISO 2013 – All rights reserved

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INTERNATIONAL STANDARD ISO 6550-3:2013(E)
Road vehicles — Sheath-type glow-plugs with conical
seating and their cylinder head housing —
Part 3:
M10 glow-plugs
1 Scope
This part of ISO 6550 specifies the main characteristics of M10 sheath-type glow-plugs with conical
seating and their cylinder head housing, for use with diesel (compression-ignition) engines.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 68-1, ISO general purpose screw threads — Basic profile — Part 1: Metric screw threads
ISO 261, ISO general purpose metric screw threads — General plan
ISO 965-1, ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data
ISO 965-3, ISO general purpose metric screw threads — Tolerances — Part 3: Deviations for constructional
screw threads
ISO 1101
...