21. 281658S World Formula Oil Fill Cap

This is a high - quality oil fill cap from Briggs' World Formula, ensuring reliable performance and long - lasting durability.

To use this oil fill cap, simply screw it onto the oil fill opening of your engine tightly. Make sure it's well - seated to prevent any oil leakage. When you're not using it, keep it in a dry and clean place. Regularly check the cap for any signs of wear or damage. If you notice any issues, replace it right away to keep your engine running smoothly.