Usage Tips:[RC12YC Spark Plugs]Lawn mower spark plugs for Champion rc12yc; Compatible with for Briggs and Stratton 491055 491055S 692051 792015 72347GS 805015 499608 491055T 694385 5066; Compatible for Kohler 25 132 12-S , 25 132 12-A, 24 132 01-S, 12 132 02-S, 12 132 02, 531308128; Compatible with for JD M78543, 2829 71-1 711; Compatible for Gravely 21525900 21531100 21534100 21536800 21537800 21544000 lawn mower engines. [Convenient Set]491055S spark plugs were direct replacements for your lawn mower. Super convenient. Help you save time and money. [Premium Quality]We use quality materials to build each spark plug. Through precision machining and rigorous testing, we ensure that every detail is perfect. This not only extends the service life, but also provides more stable and reliable performance. [Easy to install]RC12YC spark plugs replace the small lawn mower engine spark plug with accurate size and convenient installation. Ensure the smooth work of mower, prolong the life of mower engine. note: The actual product may have slight color difference or difference, which will not affect the use Type:Spark Plug Condition: Colour:As Shown Material:Metal Package Contents: 2 x Spark Plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.