The modern Champion Spark Plug embodies a number of technical improvements over the Spark Plugs of yesteryear, including advances in ceramic material, insulator and firing end design, plus copper cored centre electrodes giving a wider operating range, greater resistance to 'tracking' and they dissipate heat from the firing end faster. Replaces Champion No L10.
Thread diameter: 14mm
Thread reach: 12.7mm
Seat type: flat
Hex size: 21mm
Tip configuration: non projected
Construction: Standard construction
Terminal type: Removable
Suits:
MG: TA, TB and TC, TD to engine no. 22734 (1936-52)
Aston Martin: DB Mk III (1957-59)
