Is your lawnmower or small engine hard to start or running rough? A new spark plug might be all it needs. This Takumi spark plug (code B2RSC) is a direct replacement for the popular Briggs & Stratton 992300 plug and fits many other engines, including the Mountfield HP470 lawnmower. Specs: 14mm thread (M14), 9.5mm reach, 20.8mm hex size, and 58.4mm overall length. It's a versatile plug used in tons of garden machinery and outdoor power equipment. Comes pre-gapped, but you might need to adjust it slightly for your specific engine. Always double-check compatibility with your engine model before buying, especially for expensive or high-performance machines. A simple, affordable fix to get your equipment running smoothly again.