Raybestos MC391229 Brake Master Cylinder

Reliable Brake Master Cylinder for Hyundai and Kia Vehicles

The Raybestos Element3; New Brake Master Cylinder MC391229 is engineered to restore precise brake hydraulics for Hyundai Optima and Kia Sonata models. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance.

• Constructed from lightweight, corrosion-resistant aluminum
• Two mounting holes with 0.343-inch diameter for secure installation
• 0.875-inch bore size optimized for brake fluid pressure control
• Two ports with M12x1 thread size for primary and secondary brake lines
• Compatible with Hyundai Optima and Kia Sonata brake hydraulic systems

Detailed Specifications and Features

This Raybestos brake master cylinder (part number MC391229) features a 0.875-inch bore size that regulates brake fluid pressure effectively within the hydraulic system. The aluminum master cylinder material offers a balance of strength and corrosion resistance, contributing to long-term durability. It includes two mounting holes, each with a diameter of 0.343 inches, ensuring a precise and secure fit on compatible vehicles. Both the primary and secondary ports use M12x1 threading, facilitating straightforward connection to brake lines without modification.

About the Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM standards. This product line emphasizes material quality and dimensional accuracy, making it suitable for professional repairs and maintenance on vehicles like the Hyundai Optima and Kia Sonata. The MC391229 master cylinder is part of this line, reflecting Raybestos' commitment to consistent performance and fitment.

Common Applications and Problem Resolution

• Restores proper brake pedal feel and responsiveness
• Eliminates brake fluid leaks caused by worn or damaged master cylinders
• Resolves inconsistent braking pressure or spongy brake pedal issues
• Replaces faulty master cylinders in Hyundai Optima and Kia Sonata models
• Supports brake system maintenance and safety compliance

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Verify that the mounting holes align correctly with the vehicle’s brake booster or firewall. Use appropriate brake fluid and bleed the brake system thoroughly after installation to remove air and ensure optimal brake performance. Check all port connections for tightness to prevent leaks.

Quality Assurance and Warranty

Raybestos manufactures the MC391229 master cylinder to meet stringent quality standards, using durable aluminum and precise machining. While specific warranty details should be confirmed with the supplier, Raybestos products typically come with a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.