ISO 7299-1:2024

Diesel engines - End-mounting flanges for pumps - Part 1: Fuel injection pumps

This document specifies dimensional requirements for nine types of end-mounting flanges for fuel injection pumps (rotary, distributor and in-line fuel injection pumps) for use in diesel (compression-ignition) engines.

Moteurs diesels — Brides de montage des pompes — Partie 1: Pompes d'injection de carburant

General Information

• Status: Published
• Publication Date: 21-Jul-2024
• ICS: 43.060.40 - Fuel systems
• Technical Committee: ISO/TC 22/SC 34 - Propulsion, powertrain and powertrain fluids
• Drafting Committee: ISO/TC 22/SC 34 - Propulsion, powertrain and powertrain fluids
• Current Stage: 6060 - International Standard published
• Start Date: 22-Jul-2024
• Due Date: 16-Feb-2025
• Completion Date: 22-Jul-2024

Relations

• Revises: ISO 7299-1:2007 - Diesel engines - End-mounting flanges for pumps - Part 1: Fuel injection pumps
• Effective Date: 18-Feb-2023

Overview

ISO 7299-1:2024 - Diesel engines - End-mounting flanges for pumps - Part 1: Fuel injection pumps specifies dimensional requirements for end-mounting flanges used to attach fuel injection pumps (rotary, distributor and in-line) to diesel (compression-ignition) engines. The second edition updates the series and adds a new flange geometry (Type 7). The standard provides standardized flange geometries, hole patterns and dimensional tolerances to ensure interchangeability and reliable pump-to-engine mounting.

Key topics and requirements

• Scope: Dimensional requirements for nine types of end-mounting flanges (Types 1–9) for fuel injection pumps.
• Flange types: Defined geometries and dimensions for Types 1 through 9 (figures and tables give values in millimetres).
• Tolerances: Recommended tolerance H8 for the engine mounting bore inner diameter; pump spigot tolerance g8 (may be replaced by f7 if functionally necessary). H8 can be substituted by H7 by supplier/engine-manufacturer agreement.
• Reference dimensions: Diameter d corresponds to ISO 6519 (tapers for shaft ends and hubs).
• Installation notes: Flange configuration can be rotated relative to pump housing; Type 8 includes recommended stud angles (40° above and 20° below horizontal) for fixed-pump mounting.
• Technical drawings: Each flange type is accompanied by illustrative figures and tables (dimensions, nominal and tolerances).

Applications and users

Who uses ISO 7299-1:2024:

• Engine manufacturers and OEMs specifying engine-side mounting bores and stud configurations.
• Fuel injection pump manufacturers (rotary, distributor and in-line) designing end-mounting flanges to meet interchangeability.
• Powertrain and propulsion system designers ensuring compatible pump-to-engine interfaces.
• Aftermarket and service organizations performing pump replacements or retrofits. Practical applications:
• Standardized mounting for fuel injection pumps in diesel road vehicles and stationary diesel engines.
• Simplified supply-chain compatibility between engines and pump suppliers.
• Reduced design iterations and faster integration during engine development or pump replacement.

Related standards

• ISO 6519 - Diesel engines - Fuel injection pumps - Tapers for shaft ends and hubs (referenced for diameter d).
• Other parts of the ISO 7299 series cover additional pump types and mounting arrangements.

ISO 7299-1:2024 is essential for ensuring mechanical compatibility and interchangeability of fuel injection pumps and contributes to reliable, serviceable diesel engine assemblies. Keywords: ISO 7299-1:2024, diesel engines, end-mounting flanges, fuel injection pumps, flange dimensions, H8 tolerance, g8/f7, ISO 6519.

Standards Content (Sample)

International
Standard
ISO 7299-1
Second edition
Diesel engines — End-mounting
2024-07
flanges for pumps —
Part 1:
Fuel injection pumps
Moteurs diesels — Brides de montage des pompes —
Partie 1: Pompes d'injection de carburant
Reference number
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions and tolerances . 1
4.1 General .1
4.2 Fuel injection pumps .2
4.2.1 Type 1 end-mounting flange .2
4.2.2 Type 2 end-mounting flange .3
4.2.3 Type 3 end-mounting flange .4
4.2.4 Type 4 end-mounting flange .5
4.2.5 Type 5 end-mounting flange .6
4.2.6 Type 6 end-mounting flange .7
4.2.7 Type 7 end-mounting flange .8
4.2.8 Type 8 end-mounting flange .9
4.2.9 Type 9 end-mounting flange .10
Bibliography .11

iii
Foreword
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This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 34,
Propulsion, powertrain and powertrain fluids.
This second edition cancels and replaces the first edition (ISO 7299-1:2007), which has been technically
revised.
The main changes are as follows:
— a further geometry of end-mounting flange (type 7) has been added to the already existing geometries.
A list of all parts in the ISO 7299 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
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