Dorman M631043 Brake Master Cylinder

Reliable Brake Master Cylinder for Hyundai Elantra

The Dorman M631043 brake master cylinder is designed specifically for Hyundai Elantra models, providing precise hydraulic control for your vehicle's braking system. Engineered with an aluminum body and an integral reservoir, this master cylinder ensures consistent brake fluid delivery and reliable performance.

• Compatible with Hyundai Elantra models
• Aluminum master cylinder material for durability
• Integral reservoir included for efficient fluid management
• Master cylinder bore diameter of 0.875 inches
• Includes master cylinder cap and sensor for monitoring
• Two mounting holes for secure installation
• Two outlets with rearward outlet size M12 x 1.0

Product Features and Specifications

The Dorman M631043 brake master cylinder features a 0.875-inch bore diameter, crafted from aluminum to resist corrosion and wear. It includes an integral reservoir that simplifies brake fluid containment and maintenance. The unit comes with a master cylinder cap and an integrated sensor to monitor brake fluid levels or pressure. Designed with two mounting holes, it ensures a secure fit on Hyundai Elantra brake systems. The master cylinder has two outlets, including a secondary outlet with a 12mm thread diameter (M12 x 1.0), facilitating proper brake line connections. Note that this part does not include mounting hardware, push rod, brake booster, bleeder hoses, or mounting bracket.

Common Applications and Problem Resolution

• Restores proper hydraulic pressure in the brake system
• Replaces leaking or damaged master cylinders causing brake fluid loss
• Addresses spongy or unresponsive brake pedal issues
• Fixes brake fluid contamination or reservoir damage
• Improves brake system reliability and safety on Hyundai Elantra vehicles

Installation Notes and Tips

When installing the Dorman M631043 brake master cylinder on a Hyundai Elantra, ensure the brake system is fully depressurized and the vehicle is securely supported. Since mounting hardware is not included, retain original fasteners or acquire appropriate replacements. Properly connect the two outlets, matching the M12 x 1.0 thread size for the rearward outlet. Bleed the brake system thoroughly after installation to remove air and verify sensor connections for accurate monitoring. Follow manufacturer torque specifications for mounting bolts to avoid damage.

Quality Assurance and Warranty

Dorman manufactures the M631043 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction and integral reservoir design contribute to long-term durability. This part includes a sensor to maintain system integrity and safety. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.