4000 Series Rear Rotor

The DBA DBA42737S is a high-performance rear disc brake rotor engineered for demanding applications, including Extreme & Fleet Duty, Towing-Oversized Tires, Performance Street, and Street & Track Events. It is constructed from XG150 High Carbon Alloy Iron, a material chosen for its ability to significantly reduce warping and cracking, thereby prolonging the rotor's lifespan. DBA has integrated several patented technologies into this rotor to optimize braking performance. These slots also increase the number of out-gassing exit locations for brake pad friction gasses, which directly improves the uniformity and efficacy of brake stops. Furthermore, the rotor features DBA's distinctive Kangaroo Paw ventilation system, which utilizes 144 diamond and tear-drop shaped pillars. This unique design is crucial for reducing brake fade and enhancing overall braking effectiveness. In addition to its performance-enhancing features, the DBA42737S rotor includes integrated temperature monitoring, providing drivers with a clear indication of peak braking temperatures. The non-friction areas are coated to prevent rust formation, maintaining a clean appearance and preventing corrosion. This rotor is sold individually and is designed as a direct replacement part, ensuring a straightforward installation process for compatible vehicles.