ISO 7879:1997
(Main)Diesel engines — Cradle-mounted in-line fuel injection pumps — Mounting dimensions
Diesel engines — Cradle-mounted in-line fuel injection pumps — Mounting dimensions
Moteurs diesels — Pompes d'injection en ligne à fixation par le berceau — Dimensions de montage
General Information
- Status
- Published
- Publication Date
- 19-Nov-1997
- Technical Committee
- ISO/TC 22/SC 34 - Propulsion, powertrain and powertrain fluids
- Drafting Committee
- ISO/TC 22/SC 34/WG 2 - Injection equipment
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 08-Jan-2026
- Completion Date
- 10-Jan-2026
Relations
- Revises
ISO 7879:1990 - Road vehicles - Cradle-mounted in-line fuel injection pumps - Mounting dimensions - Effective Date
- 15-Apr-2008
Overview
ISO 7879:1997 - "Diesel engines - Cradle-mounted in-line fuel injection pumps - Mounting dimensions" is an international standard that defines the mounting dimensions and tolerances for cradle‑mounted in-line fuel injection pumps used on compression‑ignition (diesel) engines. Published as the third edition in 1997 and prepared by ISO/TC 22/SC 7, the standard provides dimensional tables and figures (Types 1–3) with values in millimetres to ensure mechanical compatibility and interchangeability of pump units.
Key topics and requirements
- Dimensional requirements for cradle-mounted in-line fuel injection pumps, presented in figures and tabulated values for various cylinder counts (4, 6, 8 and extended sizes in Type 3 such as 10 and 12).
- Tolerances and nominal values specified in millimetres to control fit and alignment between pump cradle and engine mounting.
- Multiple pump types (Type 1, 2, 3) with corresponding mounting layouts and critical dimensions illustrated in figures 1–3.
- Manufacturer choice: dimensions and requirements not covered by the standard are explicitly left to the manufacturer’s discretion.
- Informative annex (Annex A) and bibliographic references to related ISO documents on pump tapers and mounting flanges.
Applications and practical value
- Ensures mechanical compatibility between cradle‑mounted in-line fuel injection pumps and engine cradles, reducing redesign and fitment issues.
- Guides design engineers and CAD modelers when creating engine mounting interfaces and assemblies.
- Supports pump manufacturers and OEMs in producing units that meet common mounting profiles for interchangeability and aftermarket replacement.
- Used by service technicians and repair shops to verify mounting dimensions when fitting replacement pumps or performing engine overhauls.
- Useful for quality control, procurement specifications, and supplier communication to ensure consistent mounting geometry across suppliers.
Who should use this standard
- Engine manufacturers and integrators (OEMs)
- Fuel injection pump designers and suppliers
- Aftermarket and replacement pump manufacturers
- Mechanical design and installation engineers
- Maintenance and repair facilities working on diesel engines
Related standards
Annex A (informative) cites related ISO standards that complement ISO 7879:
- ISO 6519 - Tapers for shaft ends and hubs
- ISO 7299 - End‑mounting flanges for fuel injection pumps
- ISO 7612 - Base‑mounted in‑line fuel injection pumps - Mounting dimensions
Keywords: ISO 7879, diesel engines, cradle-mounted in-line fuel injection pumps, mounting dimensions, pump mounting, engine compatibility, injection pump standards.
ISO 7879:1997 - Diesel engines -- Cradle-mounted in-line fuel injection pumps -- Mounting dimensions
ISO 7879:1997 - Moteurs diesels -- Pompes d'injection en ligne a fixation par le berceau -- Dimensions de montage
Frequently Asked Questions
ISO 7879:1997 is a standard published by the International Organization for Standardization (ISO). Its full title is "Diesel engines — Cradle-mounted in-line fuel injection pumps — Mounting dimensions". This standard covers: Diesel engines — Cradle-mounted in-line fuel injection pumps — Mounting dimensions
Diesel engines — Cradle-mounted in-line fuel injection pumps — Mounting dimensions
ISO 7879:1997 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 7879:1997 has the following relationships with other standards: It is inter standard links to ISO 7879:1990. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 7879:1997 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 7879
Third edition
1997-12-01
Diesel engines — Cradle-mounted in-line
fuel injection pumps — Mounting
dimensions
Moteurs diesels — Pompes d'injection en ligne à fixation par le berceau —
Dimensions de montage
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 7879 was prepared by Technical Committee
ISO/TC 22, Road vehicles, Sub-committee SC 7, Injection equipment and
filters for use on road vehicles.
This third edition cancels and replaces the second edition (ISO 7879:1990),
of which it constitutes a minor revision.
Annex A of this International Standard is for information only.
© ISO 1997
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 central@iso.ch
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii
©
INTERNATIONAL STANDARD ISO ISO 7879:1997(E)
Diesel engines — Cradle-mounted in-line fuel injection
pumps — Mounting dimen
...
NORME ISO
INTERNATIONALE 7879
Troisième édition
1997-12-01
Moteurs diesels — Pompes d'injection en
ligne à fixation par le berceau —
Dimensions de montage
Diesel engines — Cradle-mounted in-line fuel injection pumps — Mounting
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 7879 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 7879:1990), dont elle constitue une révision mineure.
L'annexe A fait partie intégrante de la présente Norme internationale.
© ISO 1997
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 central@iso.ch
X.400 c=ch; a=400net; p=iso; o=isocs; s=central
Imprimé en Suisse
ii
©
NORME INTERNATIONALE ISO ISO 7879:1997(F)
Moteurs diesels — Pompes d'injection en ligne à fixation
par le berceau — Dimensions de montage
1 Domaine d'application
La présente Norme
...
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