Brisk spark plugs marking system explained using BOER15YC - 1 as an example.

1) Shell Dimensions   BOER15YC - 1

2) Shell Design   BOER15YC - 1

3) Electrical Connection  BOER15YC - 1

4) Signal Interference Suppression  BOER15YC - 1

5) Heat Range   BOER15YC - 1

6) Spark Gap Electrode Design   BOER15YC - 1

7) Electrode Material   BOER15YC - 1

8) Electrode Gap   BOER15YC - 1