Product Description: Premium Spark Plugs for Lawn Mowers Upgrade your lawn mower's performance and reliability with our high-quality Spark Plugs. Designed for durability and efficiency, these spark plugs are perfect for maintaining the health and performance of your mower's engine. Long-Lasting Durability: Crafted from premium materials, these spark plugs are built to withstand the high temperatures and pressures within your engine. Their durable construction reduces the need for frequent replacements, providing long-lasting reliability and peace of mind. Improved Engine Health: Regular replacement of spark plugs is crucial for maintaining optimal engine health. Fresh spark plugs ensure efficient combustion, reducing the risk of engine misfires, rough idling, and other common engine problems, thereby enhancing overall engine performance. Compatibility: These spark plugs are replacements for various models, including Champion RC12YC, Briggs and Stratton 491055, 491055S, 692051, 792015, 72347GS, 805015, 499608, 491055T, 694385, 5066, Kohler 25 132 12-S, 25 132 12-A, 24 132 01-S, 12 132 02-S, 12 132 02, 531308128, JD M78543, 2829 71-1 711, and Gravely 21525900, 21531100, 21534100, 21536800, 21537800, 21544000 lawn mower engines. Verify compatibility with your specific model for a perfect fit. Easy Installation: The 491055S spark plugs are designed for simple and precise installation. They replace small lawn mower engine spark plugs easily, ensuring smooth operation and extending the life of your mower engine. Cost-Effective Maintenance: This pack of four spark plugs offers a cost-effective solution for maintaining your vehicle. By replacing all your spark plugs at once, you save on labor costs and minimize downtime, allowing your mower to operate efficiently with less time spent in the shop. Choose our Premium Spark Plugs for a reliable, efficient, and cost-effective solution to your lawn mower maintenance needs. Ensure your mower performs at its best with these high-quality replacements, keeping your lawn looking pristine all season long.