Dorman M630482 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder M630482

The Dorman Brake Master Cylinder M630482 is designed specifically for Audi A4, A4 Quattro, and S4 models. This brake hydraulics component ensures reliable brake fluid pressure and proper braking performance for your vehicle.

• Master cylinder bore diameter: 1 inch
• Constructed from durable aluminum material
• Includes reservoir and sensor for integrated functionality
• Equipped with two outlets featuring M12 x 1.0 thread size
• Package contains the master cylinder only; mounting hardware not included

Detailed Product Description

This Dorman brake master cylinder (part number M630482) is engineered with a 1-inch bore diameter to provide consistent hydraulic pressure for the brake system. Made from aluminum, it offers corrosion resistance and long service life. The included reservoir allows for proper brake fluid storage, while the integrated sensor supports brake fluid level monitoring. The master cylinder features two outlets with M12 x 1.0 thread pitch, compatible with the brake lines on Audi A4, A4 Quattro, and S4 models. Note that mounting hardware is not included, so existing hardware should be reused or sourced separately.

Common Applications and Issues Addressed

• Restores proper brake fluid pressure in Audi A4 and S4 brake systems
• Replaces leaking or damaged master cylinders causing brake fluid loss
• Resolves brake pedal sponginess or failure due to internal cylinder wear
• Addresses sensor faults related to brake fluid level monitoring
• Improves overall brake system responsiveness and safety

Installation Notes and Tips

• Compatible with Audi A4, A4 Quattro, and S4 models; verify vehicle year and specifications before installation
• Reuse existing mounting hardware or acquire appropriate fasteners as they are not included
• Bleed the brake system thoroughly after installation to remove air and ensure proper function
• Check sensor connections for proper operation of brake fluid level monitoring

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit and function. The aluminum construction provides durability and corrosion resistance. This part is backed by Dorman's limited warranty, ensuring coverage against defects in materials and workmanship under normal use.