This is a high - quality fill cap for the brake master cylinder, ensuring reliable performance and a tight seal.

To use this fill cap, simply remove the old cap from your brake master cylinder and replace it with this new one. Make sure it's properly seated to avoid any leaks. When handling the cap, be gentle to prevent damage to the O - ring. For maintenance, check the O - ring regularly for signs of wear or damage. If you notice any issues, replace the O - ring promptly. Store the cap in a dry place when not in use to keep it in good condition.