The NGK B5HS spark plug is a premium component specifically designed for classic Citroën 11CV and 15CV models. This spark plug ensures reliable ignition and optimal combustion efficiency, allowing the engine to perform smoothly and efficiently. The B5HS is renowned for its durability and longevity, even under demanding driving conditions. With NGK's superior quality, consistent performance is guaranteed, enhancing driving experience and reducing emissions. Ideal for car enthusiasts looking to maintain their classic Citroën with original and performance-driven parts. Perfectly fitting and easy to install for hassle-free use.