- Spark Plug
- Spark plug igniting the air-fuel mixture in the combustion chamber
- NGK "3321" - Not available
PORSCHE - 911, 356, 924; ALFA ROMEO - Alfasud, Giulietta; MERCEDES-BENZ - Gullwing, SL; ALPINE - 1300, 1600; JAGUAR - XJ
Additional numbers
NGK:
B7EM