Draft
International Standard
ISO/DIS 28741
Road vehicles — Spark-plugs and their cylinder head housings — Basic characteristics and dimensions
Reference number
ISO/DIS 28741
Edition 4
© ISO 2026
Draft International Standard
Under development
This Draft International Standard is in the enquiry phase with ISO members.
Will replace ISO 28741:2023

Abstract

This document specifies the main properties and dimensions of spark plugs, including the terminals and the dimensions of their cylinder head housings, for use with any spark-ignited engines. The usage of spark plugs is not restricted to road vehicles only.

This document does not cover screened and waterproof spark plugs (see ISO 3412, ISO 3895 and ISO 3896).

General information

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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