Brembo 09.C939.11 Disc Brake Rotor - Rear

Overview of Brembo 09.C939.11 Disc Brake Rotor

The Brembo 09.C939.11 disc brake rotor is engineered for reliable braking performance on select Volvo models. Designed with grey cast iron and a vented rotor structure, it supports effective heat dissipation and consistent stopping power for vehicles like the Volvo XC90 and S90.

• Material: Durable grey cast iron construction
• Height: 43 mm for precise fitment
• Nominal Thickness: 20 mm ensuring structural integrity
• Minimum Thickness: 17.50 mm for safe rotor replacement
• Outside Diameter: 340 mm optimized for braking efficiency
• Vented rotor design to improve heat dissipation

Detailed Product Description

This Brembo disc brake rotor, part number 09.C939.11, is crafted from grey cast iron, a material known for its strength and thermal conductivity. The vented design allows air to flow between the rotor surfaces, reducing heat buildup during braking and helping to maintain consistent brake performance. With a height of 43 mm and an outside diameter of 340 mm, this rotor is engineered to meet the exact specifications required for Volvo models including the C40 Recharge, S90, V90, V90 Cross Country, XC40 Recharge, XC60, and XC90.

The nominal thickness of 20 mm provides durability and resistance to warping, while the minimum thickness of 17.50 mm indicates when the rotor should be replaced to maintain safe braking conditions. This rotor is designed to work seamlessly with the braking system of the specified Volvo vehicles, ensuring proper fit and function.

About the Premium UV Coated OE Equivalent Rotor Line

The Brembo Premium UV Coated OE Equivalent Rotor line offers rotors that match original equipment specifications with an added UV protective coating. This coating helps prevent corrosion and extends the rotor’s service life, making it a practical choice for maintaining braking performance over time. The 09.C939.11 rotor benefits from this coating, providing enhanced durability while maintaining OE-level quality and fitment.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on compatible Volvo models
• Improves braking consistency by reducing heat-related fade
• Addresses rotor corrosion issues with UV protective coating
• Restores proper rotor thickness for safe braking performance
• Compatible with vented rotor brake systems for enhanced cooling

Installation Notes and Tips

• Ensure rotor thickness meets minimum specifications before installation
• Clean rotor mounting surface to prevent uneven wear
• Use proper torque settings on wheel lug nuts to avoid rotor distortion
• Inspect brake pads and replace if worn to optimize rotor lifespan
• Follow vehicle manufacturer guidelines for brake system maintenance

Quality Assurance and Warranty

Brembo rotors, including the 09.C939.11, are manufactured to meet strict quality standards for material composition and dimensional accuracy. The Premium UV Coated OE Equivalent Rotor line includes a UV protective finish to reduce corrosion and extend service life. Warranty coverage details should be confirmed with the point of purchase or Brembo directly, as they may vary by region and application.