NGK iridium spark plug for Triumph

Iridium NGK DPR8EIX9 spark plug that allows better combustion, lower consumption and longer life than the standard spark plug. The thermal gradation is the same as the original one fitted to Triumph Bonneville, Scrambler 900, Thruxton 900, America and Speedmaster 865. (air cooled models only).

Price refers to a single spark plug

I also recommend that you consider fitting a BoosterPlug kit, especially if you have been having engine cut off problems at idle or during downshifts. You can find it below in the complementary products.