DBA DBA42560 4000 Series HD Front Disc Brake Rotor 302.7mm

The DBA DBA42560 is a front 4000 Series HD disc brake rotor featuring a smooth OE-style finish and DBA's advanced internal engineering — delivering genuine performance upgrades over standard factory rotors without altering the outward appearance. Sold as a pair, this rotor is engineered for drivers who demand improved braking performance while maintaining an OE look, making it a popular choice in controlled race divisions and performance street applications.

4000 Series HD Technology:

• Kangaroo Paw Ventilation: A patented internal vane system utilizing 144 diamond and teardrop-shaped pillars, delivering up to a 30% increase in surface area and 20% improvement in cooling efficiency over traditional straight-vane designs
• XG-150 High Carbon Alloyed Iron Construction: Premium metallurgy that resists the stress and heat generated under intense, repeated braking events
• Thermal Stability Profiling (TSP): A post-production heat treatment process that aligns the grain structure of the iron at a molecular level, producing a uniform, stable material with superior resistance to warping
• Thermographic Heat Paint Markings: Color-changing paint indicators on non-friction surfaces change at specific temperature thresholds to help monitor peak braking temperatures and rotor fatigue
• Centre-Split Core Castings: Increase heat transfer and overall thermal efficiency throughout the rotor's service life
• CBN Machine Turned Finish: Minimizes disc thickness variation for consistent, even braking performance
• Anti-Rust Painted Non-Friction Surfaces: Protect against corrosion and enhance appearance right out of the box
• Smooth OE-Style Finish: HD variant carries no suffix in the part number and features no slots or drilled holes, maintaining a factory appearance

The DBA42560 has a rotor diameter of 302.7mm and is a direct-fit, single-piece replacement rotor for the front axle. Two rotors are required per vehicle. Recommended for performance street driving, heavily laden SUVs and 4WDs, and towing applications.