DBA DBA42837 Series HD Brake Disc Rotor - 4000

The DBA DBA42837 is a 4000 Series HD single-piece performance disc brake rotor engineered for drivers who demand braking performance beyond standard OE levels while maintaining a clean, factory-style appearance. The HD (Heavy Duty) variant features a smooth OE-style rotor finish, making it popular for drivers who want the full performance benefits of the 4000 Series platform without the drilled or slotted aesthetics — ideal for controlled race divisions and street performance builds alike.

Cast from XG-150 high carbon alloyed iron and processed through DBA's proprietary Thermal Stability Profiling (TSP), this rotor is built to withstand the elevated stress and sustained heat generated under demanding braking conditions, time and time again.

Key Features:

• Kangaroo Paw™ Ventilation: DBA's patented vane design uses 144 diamond and teardrop-patterned pillars to deliver up to a 30% increase in cooling surface area and up to 20% improvement in cooling efficiency compared to traditional straight-vane rotors
• Smooth HD Finish: OE-style plain face surface — no slots or cross-drilling — preferred for controlled race classes and street applications requiring a stock appearance
• XG-150 High Carbon Alloy Iron Construction: Superior heat resistance and structural integrity under intense, repeated braking events
• Thermal Stability Profiling (TSP): Proprietary metallurgical process that enhances the rotor's capacity to handle extreme, sustained heat without warping or fade
• CBN Machine-Turned Finish: Cubic Boron Nitride machining minimizes disc thickness variation, reducing the potential for pad knock and premature wear
• Thermo-Graphic Heat Paint: Color-changing paint markings indicate specific temperature thresholds, allowing monitoring of braking temperatures and rotor fatigue during use
• Painted Non-Friction Areas: Rust protection on non-contact surfaces enhances longevity and appearance
• Direct Replacement Fitment: Bolt-on upgrade replacing OE rotors with no modifications required
• Symmetrical Design: Compatible for universal left/right installation

Manufactured by Disc Brakes Australia (DBA), a globally recognized brake specialist with over 40 years of engineering experience, the DBA42837 delivers proven performance for street, track, and performance driving applications where superior thermal management and fade resistance are essential.