Dorman M630059 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder M630059

The Dorman Brake Master Cylinder M630059 is designed specifically for Saturn vehicles, including models Ion, L100, L200, L300, LS, LS1, LS2, LW1, LW2, LW200, and LW300. This aluminum master cylinder features a 1-inch bore diameter and includes a reservoir and sensor to ensure reliable brake hydraulics performance.

• Compatible with Saturn Ion, L100, L200, L300, LS, LS1, LS2, LW1, LW2, LW200, LW300
• Master cylinder bore diameter: 1 inch
• Constructed from durable aluminum material
• Includes reservoir and sensor for integrated functionality
• Two outlet ports with rearward outlet size M10 x 1.0 and secondary outlet thread diameter M12 x 1.0
• Thread pitch of 1.0 for secure fittings
• Mounting hardware not included

Detailed Product Description

The Dorman M630059 brake master cylinder is engineered to meet the specific hydraulic requirements of various Saturn models. Its aluminum construction offers corrosion resistance and strength, while the 1-inch bore diameter ensures proper fluid displacement for effective braking. The included reservoir and sensor provide a complete assembly that supports brake fluid management and monitoring. With two outlets featuring precise thread sizes (M10 x 1.0 rearward outlet and M12 x 1.0 secondary outlet), this master cylinder integrates seamlessly with the brake system's hydraulic lines. Note that mounting hardware is not included, so existing hardware or separate purchase may be necessary.

Common Applications and Issues Addressed

• Restores proper brake fluid pressure in Saturn Ion and related models
• Replaces worn or leaking master cylinders causing brake pedal sponginess
• Solves brake fluid reservoir leaks or sensor malfunctions
• Addresses brake system failure symptoms such as poor stopping power
• Prevents brake fluid contamination and maintains hydraulic integrity

Installation Notes and Tips

• Ensure compatibility with your specific Saturn model before installation
• Bleed the brake system thoroughly after installation to remove air
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Inspect brake lines and fittings for wear or damage during replacement
• Mounting hardware is not included; retain original hardware or acquire suitable replacements

Quality Assurance and Warranty

Dorman manufactures the M630059 brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. While specific warranty details should be confirmed at the time of purchase, Dorman typically offers limited warranties covering defects in materials and workmanship.