DBA DBA42798 Series Front Brake Rotor with Kangaroo Paw Ventilation - 4000

The DBA 42798 4000 Series brake rotor is a high-performance direct replacement disc rotor designed for drivers seeking upgraded braking performance beyond standard OE levels. Built specifically for heavy-duty truck applications, this rotor delivers exceptional stopping power and durability under demanding conditions.

Advanced Material Construction:

• Cast from XG-150 high carbon alloyed iron for superior strength and heat resistance
• Thermal Stability Profiling (TSP) heat treatment process relieves internal stresses and optimizes metallurgy
• Improved fatigue resistance to minimize surface cracking during intense use
• Single-piece construction for reliable, consistent performance

Kangaroo Paw Ventilation Technology:

• Features 144 diamond and teardrop-patterned internal pillars for enhanced cooling
• Up to 20-30% improvement in cooling efficiency compared to traditional straight vane designs
• Increased surface area provides additional structural support to the friction face
• Maintains rotor stability and effectiveness under sustained heavy braking

Premium Features:

• Thermo-Graphic heat paint changes color at critical temperature thresholds for performance monitoring
• Cubic Boron Nitride (CBN) machine-turned finish minimizes disc thickness variation
• Black high-temperature coating on non-friction surfaces prevents corrosion
• Center-split core casting design for optimal heat transfer and thermal efficiency
• Bi-directional design allows universal left/right installation

DBA 4000 Series rotors are engineered to handle the increased stress and heat generated in heavy-duty braking applications, making them ideal for towing, hauling, and performance driving. On average, these rotors last three times longer than conventional rotors while providing superior fade resistance and pedal feel.