GB/T 6791-2012
Road vehicles.Spark-plugs and their cylinder head housing.Basic characteristics and dimensions (English Version)

Standard No.

GB/T 6791-2012

Language

Chinese, Available in English version

Release Date

2012

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 6791-2012

Replace

GB/T 6791-1986 GB/T 6784-1999 GB/T 6785-1999 GB/T 6786-1986 GB/T 6787-1986 GB/T 6788-1986 GB/T 6789-1999

Scope

This standard specifies the main features and dimensions of the spark plug, including the dimensions of the terminal and the mounting hole of the cylinder head. This standard applies to spark plugs for spark ignition engines of road vehicles.

GB/T 6791-2012 Referenced Document

• GB/T 192 General purpose metric screw threads--Basic profile
• GB/T 193 General purpose metric screw threads--General plan
• GB/T 197 General purpose metric screw threads—Tolerances*， 2018-03-15 Update
• GB/T 2516 

GB/T 6791-2012 history

• 2012 GB/T 6791-2012 Road vehicles.Spark-plugs and their cylinder head housing.Basic characteristics and dimensions
• 1986 GB/T 6791-1986 Spark plug M18*1.5 with conical seating and cylinder head housing

GB/T 6791-2012 Road vehicles.Spark-plugs and their cylinder head housing.Basic characteristics and dimensions has been changed from GB/T 6784-1999 M10×1spark-plugs with flat seating and their cylinder head housing.

GB/T 6791-2012 Road vehicles.Spark-plugs and their cylinder head housing.Basic characteristics and dimensions has been changed from GB/T 6785-1999 M12×1.25spark-plugs with flat seating and their cylinder head housing.

GB/T 6791-2012 Road vehicles.Spark-plugs and their cylinder head housing.Basic characteristics and dimensions has been changed from GB/T 6786-1986 Spark plug M14*1.25 with flat seating and cylinder head housing.

GB/T 6791-2012 Road vehicles.Spark-plugs and their cylinder head housing.Basic characteristics and dimensions has been changed from GB/T 6787-1986 Compact spark plug M14*1.25 with flat seating and cylinder head housing.

GB/T 6791-2012 Road vehicles.Spark-plugs and their cylinder head housing.Basic characteristics and dimensions has been changed from GB/T 6788-1986 Compact spark plug M14*1.25 with conical seating and cylinder head housing.

GB/T 6791-2012 Road vehicles.Spark-plugs and their cylinder head housing.Basic characteristics and dimensions has been changed from GB/T 6789-1999 M14×1.25 spark-plugs with conical seating and their cylinder head housing.