Triumph DENSO spark plug

100% pre-fired to ensure reliable operation.
Copper core center electrode for superior thermal conductivity.
Unique five-rib insulator reduces flashover and decreases voltage loss.
Dual copper and glass seal bonds the center electrode and insulator together for a gas-tight seal.
Original equipment in automotive applications.
Compatible motorcycles:
Bonneville (all) ← 2015 (air cooled)
Thruxton (all) ← 2015 (air cooled)
Scrambler (all) ← 2016 (air cooled)
Thunderbird 1995 ↔ 2003
Thunderbird T.Sport 1998-2003
Legend TT 1998 ↔ 2001