Raybestos MC390320 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet, GMC, Isuzu, and Oldsmobile

The Raybestos Element3; New Brake Master Cylinder MC390320 is engineered to restore proper brake hydraulics in select Chevrolet, GMC, Isuzu, and Oldsmobile models. Designed with precision, this aluminum master cylinder ensures consistent brake fluid pressure for safe and effective stopping power.

• Constructed from durable aluminum for corrosion resistance and longevity
• Features a 24.000 mm bore size for optimal hydraulic performance
• Includes two mounting holes with a diameter of 0.433 inches for secure installation
• Equipped with two ports: primary port thread 1/2"-20 and secondary port thread 9/16"-18
• Compatible with Chevrolet Blazer, GMC Jimmy, Isuzu Hombre, Oldsmobile Bravada, Chevrolet S10, and GMC Sonoma

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM specifications. This product line emphasizes quality materials and precise engineering, making the MC390320 master cylinder a dependable choice for maintaining brake system integrity in various truck and SUV models.

Detailed Product Description

The MC390320 brake master cylinder is crafted from aluminum, providing a lightweight yet robust solution for brake hydraulic systems. Its 24.000 mm bore size is designed to deliver consistent hydraulic pressure, ensuring responsive brake pedal feel. The two mounting holes, each with a 0.433-inch diameter, allow for a secure fitment in the brake system assembly. Additionally, the master cylinder features two ports with specific thread sizes—primary port thread 1/2"-20 and secondary port thread 9/16"-18—compatible with standard brake line fittings. This part is engineered specifically for use in Chevrolet Blazer, GMC Jimmy, Isuzu Hombre, Oldsmobile Bravada, Chevrolet S10, and GMC Sonoma models, providing a precise replacement option for these vehicles.

Common Applications and Issues Addressed

• Restores brake fluid pressure in vehicles experiencing soft or spongy brake pedal feel
• Replaces master cylinders with internal leaks or worn seals
• Solves brake system failure due to corrosion or material fatigue in original parts
• Addresses inconsistent braking performance in Chevrolet, GMC, Isuzu, and Oldsmobile trucks and SUVs
• Prevents brake fluid contamination and maintains hydraulic integrity

Installation Notes and Tips

• Ensure compatibility with your specific vehicle make and model before installation
• Bleed the brake system thoroughly after installation to remove air and ensure proper hydraulic function
• Use appropriate tools to avoid damaging the aluminum housing or port threads
• Inspect brake lines and fittings for wear or damage during installation
• Follow manufacturer torque specifications for mounting bolts to secure the master cylinder

Quality Assurance and Warranty

Raybestos manufactures the MC390320 master cylinder to meet stringent quality standards, using corrosion-resistant aluminum and precision machining. While specific warranty details may vary, Raybestos products typically come with a limited warranty against defects in materials and workmanship. This ensures confidence in the durability and performance of the brake master cylinder for your Chevrolet, GMC, Isuzu, or Oldsmobile vehicle.