2-piece CMR6H spark plugs for lawnmowers, compatible with MS170, MS171, MS181, MS211, MS231, MS241, MS251, BG56, BG66, BG86, BR500, BR550, and BR600 models, for FS90, FS100, FS110, FS90R, FS100R, and

【Optimal Performance】: This NGK 3365 CMR6H spark plug features anti-interference technology that reduces electrical interference. It offers optimal reliability for consistent ignition and peak engine performance. 【Compatibility】: Compatible with BR600, BR500, BR550, FC70, FC90, FS90, FS100, FS110, FS130, FS90R, FS100R, FS110R, and FS130R chainsaws. Also compatible with MS171, MS181, MS211, MS192C, MS193T, MS201T, MS201TC, MS201, MS201C, and MS251 chainsaws. The NGK 3365 CMR6H spark plug is equivalent to many other reputable brands, including the CHAMPION RZ10YC, and guarantees proven performance. [Material]: The CMR6H spark plug is made of ceramic and metal, making it durable and able to withstand daily wear and tear. It offers exceptional durability, even under harsh conditions. [Wide Range of Applications]: Our spark plugs are suitable as accessories for many types of lawnmowers, trimmers, brush cutters, leaf blowers, chainsaws, etc. [Requirements]: The quality of this ignition depends on several factors that positively impact driving and the environment: quiet operation, engine performance and efficiency, and pollutant emissions. For optimal combustion, the ignition spark must be capable of producing the best possible result.