One OEM Denso U-Groove Spark Plug, code W14LM-4. These spark plugs are also replacements for Autolite 458, Champion J19LM and NGK B4LM spark plugs. Denso spark plugs are one of the best plugs on the markets for your small engines! The Denso U-Groove are a patented design by Denso that help improve ignitability and reduce quenching. By design the U-Groove machined into the ground electrode provides more room for the spark to grow into a larger flame providing more energy and a more complete combustion cycle. The same design reduces the quenching by limiting the contact surface area between the electrode and the flame nucleus. Fitment: Kohler 141, 161 and 181 Honda 2.2 G100 and 2.5 G100K1 Poulan PP111, 112, 114, 115, 165, 176 and 196 Robin 2.0 EY08 Sears Trimmers 765340, 795410, 795420, 795430, 795510, 795520, 796131 Weed Eater 1400, 1500, 1600, 1700, 1740, 1900, BC30B, GT115, 16, 17, 18, 19, 52, XR20, 30, 50, 75, 80, 90, 95, 100, 105, 125, XT20, 40, 85 We have more lawn and garden items available than we have time to list them. If you don't see the parts you need listed please contact us we would love to earn your business. We are listing new items frequently so please check our store often. Part Numbers: W14LM-U We stock a wide variety of replacement parts for most Agricultural Equipment please contact us if you have any questions or if you would like more information. Your satisfaction is important to me, if you have any questions, concerns or comments please let me know, I will do everything I can to answer your questions, correct your problem and help you out..