The Bosch 0242 236 665 Long-Fat Spark Plug is a robust and reliable ignition component designed for engines that require a longer thread reach and wider-body plug. With a thread length of 26.5 mm and a standard M14×1.25 thread size, this spark plug ensures a secure and precise fit in deeper combustion chambers. It features a 16 mm hex for easy installation and a preset 1.0 mm electrode gap that delivers consistent spark performance straight out of the box. Designed to operate under demanding conditions, it supports smooth ignition, efficient combustion, and stable engine performance.

Built with durable nickel alloy electrodes and a strong ceramic insulator, the Bosch 0242 236 665 spark plug is resistant to fouling and thermal stress, offering dependable service over thousands of kilometers. It is compatible with a range of Toyota and Mitsubishi models, including Hilux, Land Cruiser, Lancer, Prado, and FJ Cruiser, among others. Engineered to meet OEM standards, this plug provides a cost-effective and long-lasting solution for vehicles that demand a reliable spark and consistent performance in both everyday driving and heavier-duty applications.