DBA DBA42632 4000 Series HD Front Disc Brake Rotor

The DBA DBA42632 is a 4000 Series HD front disc brake rotor from Disc Brakes Australia (DBA), delivering a significant performance upgrade over standard OE replacement rotors. Sold individually.

4000 Series HD Overview:

The 4000 Series HD features a smooth OE-style rotor finish, making it ideal for drivers who want the full performance benefits of the 4000 Series platform while maintaining a factory-correct appearance — popular in controlled race divisions and performance street applications.

Key Features:

• Thermal Stability Profiling (TSP): A proprietary DBA heat-treatment process that subjects the XG-150 high carbon alloyed iron to controlled heat cycles, relieving internal manufacturing stresses for maximum thermal stability and reduced metal fatigue under extreme braking loads
• Kangaroo Paw Ventilation: Patented vane design featuring 144 diamond and teardrop patterned pillars, delivering up to 30% more surface area and 20% improvement in cooling efficiency versus traditional straight-vane designs
• Thermographic Heat Paint (TGHP) Markings: Color-changing paint indicators on the rotor edge change color at specific temperature thresholds, allowing real-time monitoring of braking temperatures and rotor fatigue
• XG-150 High Carbon Alloyed Iron Construction: Premium cast iron formulation capable of withstanding intense and repeated braking stress, offering superior resistance to warping and cracking
• Rust-Inhibiting Paint: Non-friction areas are coated to prevent rust and maintain appearance throughout the rotor's service life
• Direct OE Replacement: Bolt-on fitment with no mechanical modifications required

The DBA 4000 Series HD is recommended for performance street driving, high-performance SUVs, towing applications, and drivers seeking a significant step above OE braking without altering the stock appearance of their brake system.