The Dominion Master Cylinder Composite Reservoir Cap is a genuine replacement part designed for use with compatible Hayes Dominion brake systems. This durable composite cap securely seals the master cylinder reservoir, helping protect brake fluid from contamination while ensuring consistent hydraulic performance.

Ideal for replacing a damaged or missing cap during servicing or repairs, it restores the proper function and finish of your Dominion brake lever assembly.

Key Features:

• Genuine replacement reservoir cap for Hayes Dominion brakes
• Durable composite construction
• Seals the master cylinder reservoir to prevent contamination
• Helps maintain consistent hydraulic brake performance
• Ideal for servicing or replacing damaged parts