Dorman M390132 Brake Master Cylinder

Overview of the Dorman Brake Master Cylinder M390132

The Dorman Brake Master Cylinder M390132 is designed specifically for Geo and Toyota vehicles, including the Corolla and Prizm models. This brake master cylinder features an aluminum construction and includes a reservoir and sensor to ensure reliable brake hydraulics performance.

• Master cylinder bore diameter: 0.875 inches
• Constructed from durable aluminum material
• Includes reservoir and sensor for accurate brake fluid management
• Two outlet ports with rearward outlet size M10 x 1.0 and thread pitch 1.0
• Secondary outlet thread diameter of 10 mm
• Mounting hardware not included

Detailed Product Description

The Dorman M390132 brake master cylinder is engineered to meet the specifications required for Geo Corolla and Toyota Prizm brake systems. Its aluminum body offers corrosion resistance and strength, contributing to long-term durability. The 0.875-inch bore diameter is designed to provide consistent hydraulic pressure for effective braking. This master cylinder comes with an integrated reservoir and sensor, allowing for proper fluid level monitoring and brake system feedback. Featuring two outlets, including a rearward outlet with M10 x 1.0 thread size, it supports precise brake line connections. Note that mounting hardware is not included, so ensure compatibility with existing components during installation.

Common Applications and Problem Resolution

• Replaces worn or leaking brake master cylinders in Geo Corolla and Toyota Prizm models
• Addresses brake fluid leaks caused by damaged reservoirs or seals
• Restores proper brake pedal feel and hydraulic pressure
• Fixes brake warning light issues related to faulty sensors
• Improves overall brake system reliability and safety

Installation Notes and Tips

• Verify compatibility with your specific Geo Corolla or Toyota Prizm year and model before installation
• Bleed the brake system thoroughly after installation to remove air from the lines
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Check all connections for proper thread engagement, especially the M10 x 1.0 rearward outlet
• Since mounting hardware is not included, retain original hardware or source compatible replacements

Quality Assurance and Warranty

Dorman manufactures this brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integrated sensor contribute to reliable brake system performance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their brake hydraulics components. Consult product documentation or the supplier for exact warranty terms.