SILZKFR8D7S Laser Iridium Spark Plug

The NGK SILZKFR8D7S Laser Iridium Spark Plug (95875) is engineered for modern turbo petrol engines, providing a strong and reliable spark. Its fine-wire iridium center electrode and platinum ground pad offer exceptional wear resistance, maintaining a consistent gap for improved performance, smoother running, and enhanced throttle response over time. This plug is suitable as an OE-equivalent replacement or as an upgrade for tuned vehicles, especially those experiencing higher boost pressures. Key specifications include a M12 x 1.25 thread size, 26.5 mm thread reach, and a 14 mm hex size. It features a flat seat with gasket, a projected tip, and a solid terminal. The heat range is rated at 8 on the NGK scale, and it includes a built-in resistor to minimize electrical noise and protect the ECU. The preset gap is 0.8 mm, but it should be checked and adjusted if specified by the vehicle manufacturer. Installation notes emphasize not to overtighten the spark plug and to always torque to the vehicle maker's specification on a cold engine. The price displayed is for a single plug, and it is recommended to install these plugs as a full, matching set. Compatibility should always be confirmed using the vehicle lookup or fitment tab, as the information provided is a combination of supplier data and workshop expertise. This spark plug is confirmed to fit numerous Mercedes-Benz models, including various iterations of the A-Class (W176, W177, V177), AMG GT (C190, R190), and B-Class (W246, W242, W247), among others. Specific engine codes such as M133, M177, M178, M264, M270, M274, and M276 are noted as compatible.