4000 Series HD Disc Brake Rotor

The DBA DBA42798 is a 4000 Series HD disc brake rotor, engineered to provide upgraded performance braking that exceeds standard OE levels. This single-piece rotor features a smooth, OE-style finish, making it a popular choice for drivers who require the benefits of the 4000 Series but prefer a more conventional appearance, such as those in controlled race divisions. Constructed from XG-150 high carbon alloyed iron, the DBA42798 offers superior quality and durability. This material is specifically chosen for its ability to withstand greater stress and heat compared to standard rotor materials. The rotor also incorporates TSP (Thermal Stability Profiling) for optimal cooling and performance, along with thermo-graphic paint markings that indicate temperature levels for quick identification. Its design includes 144 diamond-and-teardrop-shaped pillars, which enhance surface area for improved cooling effectiveness. Installation is straightforward, as this rotor is designed as a direct replacement for the original equipment. The rotor comes in moisture-proof, corrosion-protection packaging to ensure it remains in top condition until installation. The specific dimensions include an outside diameter of 346.8 mm, a nominal thickness of 38 mm, and a center hole diameter of 129.2 mm, with 8 lug holes. This DBA 4000 Series rotor is recommended for OE replacement and performance use, with driving qualifiers including Commuter/OE Upgrade, Performance Street, Extreme & Fleet Duty, Towing-Oversized Tires, Off Road, and Street & Track Events. It is sold individually.