2PK A5RTC Spark plug Replace for 6535/CR5HSB Spark plug, for NAR17 Spark plug, for NAR17C Spark plug, for 808/Z9Y Spark plug, for GX31 GX100 GXH50, OEMAbout this item 🟢LONG HISTORY - Established in 1961, this company has become a leader in spark plug production and R&D, achieving notable milestones in the industry. 🟢SPECIFICATIONS - Thread Size: 10*1MM, Thread Reach: 12.7MM, Hexagon Size: 16MM. Please check for correct specifications and measurements for your application! 🟢COMPATIBILITY - This spark plug replaces NGK (6535) CR5HSB Standard Spark Plug, compatible with Honda 98056-55777 for EU2000I, EU2200 Series Generators, as well as various Champion and Brisk models. 🟢COMPATIBLE - Suitable for lawn mowers UMK422/UMK431/UMR422/UMR431 with engines GX22/GX31/GXH50/GXV50/GX110/GXR120/GXV57, part number 98056-55777. 🟢REPLACE - Designed for 79CC, 98CC, 145CC 4-Stroke OHV engines including various GENMAX Engine Generators. 🟢PERFORMANCE - Longer service life, fast starts, reduced emissions, improved fuel efficiency, stable performance. 🟢APPLICATIONS - Spark plugs play a crucial role in the ignition system of gasoline or gas engines, used widely in automobiles, motorcycles, aircraft, garden tools, yachts, and industrial applications, specifically designed to enhance power, reduce fuel consumption, and improve hydrocarbon emissions. Product dimensions: 1 x 6 x 7 inches.