[RC12YC Spark Plugs] Lawn mower spark plugs compatible with Champion RC12YC; Fits Briggs and Stratton models 491055, 491055S, 692051, 792015, 72347GS, 805015, 499608, 491055T, 694385, 5066; Compatible with Kohler models 25 132 12-S, 25 132 12-A, 24 132 01-S, 12 132 02-S, 12 132 02, 531308128; Replaces JD M78543, 2829 71-1 711; Fits Gravely models 21525900, 21531100, 21534100, 21536800, 21537800, 21544000 lawn mower engines. [Convenient Set] RC12YC spark plugs are direct replacements for your lawn mower. Convenient to install and help save time and money. [Premium Quality] Made with quality materials. Precision machined and rigorously tested to ensure reliable performance and extended service life. [Easy to Install] Designed with accurate sizing for easy installation. Helps maintain smooth engine operation and prolongs engine life. Note: The actual product may vary slightly in color due to lighting and display differences. This does not affect functionality. Type: Spark Plug Condition: New Color: As Shown Material: Metal Package Contents: 2 x Spark Plug Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement may vary by +/- 1-3 cm.