ISO 7654:1998
(Main)Road vehicles — Spin-on fuel filters for diesel engines — Mounting and connecting dimensions
Road vehicles — Spin-on fuel filters for diesel engines — Mounting and connecting dimensions
Véhicules routiers — Filtres à combustible vissés pour moteurs diesels — Dimensions de montage et de raccordement
General Information
- Status
- Published
- Publication Date
- 02-Sep-1998
- Technical Committee
- ISO/TC 22/SC 34 - Propulsion, powertrain and powertrain fluids
- Drafting Committee
- ISO/TC 22/SC 34/WG 1 - Fuel filters
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 08-Jan-2026
- Completion Date
- 10-Jan-2026
Relations
- Effective Date
- 15-Apr-2008
Overview
ISO 7654:1998 is an international standard that specifies the mounting and connecting dimensions for spin-on fuel filters used in diesel (compression-ignition) engines in road vehicles. Published by the International Organization for Standardization (ISO), this third edition standard provides precise size, tolerance, and sealing requirements to ensure compatibility and reliable performance of fuel filters across different manufacturers.
This standard covers two types of spin-on fuel filter designs: those without an inner sealing (preferred design) and those with an inner sealing (alternative design). The document includes detailed dimensional drawings, specifications for sealing surfaces, and guidance on markings for identifying filter types and installation instructions.
Key Topics
- Mounting Dimensions: ISO 7654 defines exact dimensions to ensure proper fit of spin-on fuel filters on diesel engine fuel filter heads, including diameter ranges and connecting thread sizes (e.g., M16 × 1.5, M24 × 1.5).
- Connecting Dimensions: Specific requirements for the connecting thread and sealing surfaces are detailed to guarantee secure and leak-free installation.
- Sealing Requirements: The standard illustrates the required shape and compression of sealing rings, including cases where a metal-to-metal contact is allowed if the filter uses molded sealing rings.
- Alternative Inner Sealing Design: Annex A describes an optional design featuring an inner sealing ring at the thread connection, ensuring added sealing protection when mutually agreed upon by manufacturers and users.
- Marking and Identification: Guidelines for optional markings on filters include filter type designation, thread size, and installation instructions to assist in proper filter replacement and compatibility verification.
- Related Filter Heads: Reference is made to related ISO standards for filter heads, such as ISO 7310, ISO 7311, and ISO 7577, which define connecting dimensions for fuel filter mounting surfaces and heads.
Applications
ISO 7654:1998 applies specifically to the automotive industry and manufacturers of diesel engine components, focusing on:
- Automotive OEMs and component manufacturers: Ensuring fuel filter designs conform to global standards for dimensions, compatibility, and functionality.
- Aftermarket fuel filter suppliers: Guaranteeing filters fit common diesel engines across different brands with standardized mounting and connecting dimensions.
- Vehicle maintenance and repair services: Facilitating correct filter replacement practices by referencing standardized dimensions and installation guidelines.
- Quality assurance and testing: Providing measurable tolerances and dimensions to verify product conformity and customer safety.
By adhering to ISO 7654, stakeholders benefit from interchangeability of parts, reduced compatibility issues, and enhanced reliability of diesel engine fuel filtration systems.
Related Standards
ISO 7654 is part of a family of standards addressing fuel filtration components and related vehicle systems:
- ISO 7310: Diesel engines - Heads for spin-on fuel filters with horizontal flange - Mounting and connecting dimensions.
- ISO 7311: Diesel engines - Heads for fuel filters with vertical flange - Mounting and connecting dimensions.
- ISO 7577: Road vehicles - Heads for fuel filters with vertical flange and three-bolt fixing for compression engines - Mounting and connecting dimensions.
These related standards complement ISO 7654 by specifying the dimensions of the filter heads that work in conjunction with the spin-on fuel filters, ensuring a fully standardized fuel filtration assembly.
Keywords: ISO 7654, spin-on fuel filters, diesel engines, road vehicles, mounting dimensions, connecting dimensions, fuel filter standards, diesel fuel filter, sealing dimensions, thread size, automotive fuel filtration, filter compatibility.
ISO 7654:1998 - Road vehicles -- Spin-on fuel filters for diesel engines -- Mounting and connecting dimensions
ISO 7654:1998 - Véhicules routiers -- Filtres a combustible vissés pour moteurs diesels -- Dimensions de montage et de raccordement
Frequently Asked Questions
ISO 7654:1998 is a standard published by the International Organization for Standardization (ISO). Its full title is "Road vehicles — Spin-on fuel filters for diesel engines — Mounting and connecting dimensions". This standard covers: Road vehicles — Spin-on fuel filters for diesel engines — Mounting and connecting dimensions
Road vehicles — Spin-on fuel filters for diesel engines — Mounting and connecting dimensions
ISO 7654:1998 is classified under the following ICS (International Classification for Standards) categories: 43.060.40 - Fuel systems. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 7654:1998 has the following relationships with other standards: It is inter standard links to ISO 7654:1991. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 7654:1998 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 7654
Third edition
1998-09-15
Road vehicles — Spin-on fuel filters for
diesel engines — Mounting and connecting
dimensions
Véhicules routiers — Filtres à combustible vissés pour moteurs diesels —
Dimensions de montage et de raccordement
A
Reference number
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.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 7654 was prepared by Technical Committee
ISO/TC 22, Road vehicles, Subcommittee SC 7, Injection equipment and
filters for use on road vehicles.
This third edition cancels and replaces the second edition (ISO 7654:1991),
which has been technically revised.
Annex A forms an integral part of this International Standard. Annex B is for
information only.
© ISO 1998
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet iso@iso.ch
Printed in Switzerland
ii
©
INTERNATIONAL STANDARD ISO ISO 7654:1998(E)
Road vehicles — Spin-on fuel filters for diesel engines —
Mounting and connecting dimensions
1 Scope
This international Standard specifies the mounting and connecting dimensions for spin-on fuel filters, with and
without an inner sealing, to be used with diesel (compression-ignition) engines.
The preferred design of spin-on fuel filters are those without an inner sealing, and they are specified in clause 2.
The alternative filter design is specified in annex A and should be used if an inner sealing is required.
The corresponding filter heads are specified in ISO 7310, ISO 7311 and ISO 7577 (see annex B).
2 Dimensions and tolerances
Details not specified in this International Standard are left to the manufacturer’s choice.
2.1 The dimensions and tolerances of the filter shall be in accordance with figure 1.
The shape of the sealing ring shown in X shall be such that effective sealing is ensured. The dimensions of the
compressed sealing ring shall be within the sealing surface shown in figure 2.
The dimension 0,5 mm min. shown in X shall be measured after tightening the filter in accordance with the filter
manufacturer’s recommendations. In cases where moulded sealing rings are used,
...
NORME ISO
INTERNATIONALE 7654
Troisième édition
1998-09-15
Véhicules routiers — Filtres à combustible
vissés pour moteurs diesels — Dimensions
de montage et de raccordement
Road vehicles — Spin-on fuel filters for diesel engines — Mounting and
connecting dimensions
A
Numéro de référence
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération
mondiale d'organismes nationaux de normalisation (comités membres de
l'ISO). L'élaboration des Normes internationales est en général confiée aux
comités techniques de l'ISO. Chaque comité membre intéressé par une
étude a le droit de faire partie du comité technique créé à cet effet. Les
organisations internationales, gouvernementales et non gouvernementales,
en liaison avec l'ISO participent également aux travaux. L'ISO collabore
étroitement avec la Commission électrotechnique internationale (CEI) en
ce qui concerne la normalisation électrotechnique.
Les projets de Normes internationales adoptés par les comités techniques
sont soumis aux comités membres pour vote. Leur publication comme
Normes internationales requiert l'approbation de 75 % au moins des
comités membres votants.
La Norme internationale ISO 7654 a été élaborée par le comité technique
ISO/TC 22, Véhicules routiers, sous-comité SC 7, Équipements d’injection
et filtres pour application aux véhicules routiers.
Cette troisième édition annule et remplace la deuxième édition
(ISO 7654:1991), dont elle constitue une révision technique.
Annexe A fait partie intégrante de la présente Norme internationale.
L’annexe B est donnée uniquement à titre d’information.
© ISO 1998
Droits de reproduction réservés. Sauf prescription différente, aucune partie de cette publi-
cation ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun pro-
cédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l'accord
écrit de l'éditeur.
Organisation internationale de normalisation
Case postale 56 • CH-1211 Genève 20 • Suisse
Internet iso@iso.ch
Imprimé en Suisse
ii
©
NORME INTERNATIONALE ISO ISO 7654:1998(F)
Véhicules routiers — Filtres à combustible vissés pour moteurs
diesels — Dimensions de montage et de raccordement
1 Domaine d'application
La présente Norme internationale prescrit les dimensions de montage et de raccordement des filtres à combustible
vissés, avec et sans étanchéité intérieure, à utiliser sur les moteurs diesels (à allumage par compression).
Le modèle préférentiel de filtre vissé est le filtre sans étanchéité intérieure prescrit à l’article 2. L’autre modèle de
filtre est spécifié dans l’annexe A. Il est à utiliser si l’étanchéité intérieure est exigée.
Les têtes de filtres correspondantes sont prescrites dans l’ISO 7310, l’ISO 7311 et l’ISO 7577 (voir annexe B).
2 Dimensions et tolérances
Les détails non spécifiés dans la présente Norme internationale sont laissés à l’initiative du fabricant.
2.1 Les dimensions et les tolérances du filtre doivent être conformes à la figure 1.
La forme du joint d’étanchéité, représentée en X, doit être telle qu’une étanchéité effective soit assurée. Les
dimensions du joint d’étanchéité comprimé doivent rester à l’intérieur de la surface d’étanchéité représentée à la
figure 2.
La dimension 0,5 mm min. représentée dans le détail X doit être mesurée après le serrage du filtre selon les
recommandations du fabricant de filtres. Lorsque des anneaux d’étanchéité moulés sont utilisés, cette dimension
peut devenir nulle, ce qui signifie qu’un contact métallique entre la surface d’étanc
...
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