GB/T 6791-2025 Active National standards

GB/T 6791-2025 Road vehicles—Spark-plugs and their cylinder head housings—Basic characteristics and dimensions

GB/T 6791-2025 Road vehicles—Spark-plugs and their cylinder head housings—Basic characteristics and dimensions

Publish Date: 2025-10-31 Implement Date: 2026-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 6791-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Ignition device

ICS Name: Internal combustion engines in road vehicles

Publish Date: 2025-10-31

Implement Date: 2026-05-01

Pages: 32 pages

Scope

This document specifies the main characteristics and dimensions of spark plugs, including the dimensions of the wiring terminals and the mounting holes in the cylinder heads.
This document is applicable to spark plugs used in spark-ignition engines, and its application scenarios are not limited to road vehicles.
This document is not applicable to shielded and waterproof spark plugs.

Development Information

Word Count: 42 Thousand words Pages: 32 pages

Replace the following standards

GB/T 6791-2012 Road vehicles—Spark-plugs and their cylinder head housing—Basic characteristics and dimensions

Referenced Standards

GB/T 192-2003 General purpose metric screw threads—Basic profile GB/T 192-2025 General purpose metric screw threads—Profiles GB/T 193-2003 General purpose metric screw threads—General plan GB/T 197-2003 General purpose metric screw threads—Tolerances GB/T 197-2018 General purpose metric screw threads—Tolerances GB/T 2516-2003 General purpose metric screw threads—Limit deviations GB/T 2516-2023 General purpose metric screw threads—Limit deviations

Adopt standards

ISO 28741:2023

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