Here is a product description that meets the requirements:

The Qiuwanzia RC12YC spark plugs are specifically designed for Briggs and Stratton lawn mowers, offering exceptional performance and reliability. These high-quality spark plugs feature a durable copper core and a ceramic insulator, ensuring optimal engine function and reducing wear on your mower's components.

For Kohler 25-132-12S lawnmower engines, these RC12YC spark plugs provide the perfect balance of power and efficiency. With five spark plugs included in this set, you'll have everything you need to keep your lawn mower running smoothly and effectively.

These spark plugs are designed for Briggs and Stratton 491055, 491055S, 692051, 792015, 491055T, and 5066 models, as well as Kohler 25, 132, 12-S lawnmower engines. They're specifically crafted to meet the unique needs of your lawn mower engine.

With Qiuwanzia RC12YC spark plugs, you can expect:

- Improved engine performance
- Reduced emissions
- Longer engine life

These spark plugs are a must-have for any lawn mower owner looking to upgrade their engine's performance and efficiency. Order now and experience the difference that high-quality spark plugs can make in your lawnmowing routine.