Reliable Small Engine Ignition SolutionThe CMR6H spark plug is designed for small gasoline engines used in outdoor power equipment. It helps provide stable ignition performance for trimmers, chainsaws and backpack blowers, ensuring smooth combustion and reliable engine operation.Improved Engine PerformanceA worn or damaged spark plug may cause hard starting, engine misfires, poor fuel efficiency or unstable operation. Replacing it with a new CMR6H plug helps restore proper ignition, improve starting response and maintain consistent performance.OEM Replacement CompatibilityThis spark plug replaces NGK 3365 and Stihl OEM part 0000 400 7011. It is compatible with a wide range of Stihl outdoor power equipment. Please confirm model compatibility before purchase.Fits Models Compatible with Stihl FS Series Trimmers: FS90, FS100, FS110, FS130 Compatible with Stihl HL Series Hedge Trimmers: HL90, HL100, HL110 Compatible with Stihl HT Series Pole Pruners: HT100, HT101, HT130 Compatible with Stihl KM Kombi Engines: KM90, KM90R, KM100, KM110 Compatible with Stihl BR Backpack Blowers: BR500, BR550, BR600 Compatible with Stihl MS Chainsaws: MS171, MS181, MS192, MS201, MS201T, MS211 Other Compatible Models: SP90, KM130 (if applicable depending on engine configuration)Durable Copper Core ConstructionBuilt with a copper core for improved heat dissipation and conductivity. Helps reduce overheating risk, maintain stable spark output and extend service life under demanding outdoor conditions.Easy InstallationDesigned as a direct replacement part. Installation can be completed using standard tools. Always ensure the engine is turned off and cooled before replacement for safe maintenance.Maintenance RecommendationRegular replacement helps maintain optimal engine efficiency, reduce fuel consumption and improve starting reliability. Recommended for seasonal maintenance of garden and forestry equipment.Packing List3 × CMR6H Spark Plugs