DBA DBA42816 4000 Series HD Rear Disc Brake Rotor

The DBA DBA42816 is a 4000 Series HD rear disc brake rotor engineered as a direct-fit, single-piece replacement unit for drivers who demand performance braking well beyond standard OE levels. With a rotor diameter of 281.8mm, this rotor is sold individually and two are required per axle.

The 4000 Series HD variant delivers all the engineering benefits of DBA's acclaimed 4000 Series platform while featuring a smooth, OE-style rotor finish — making it an ideal choice for controlled race divisions and drivers who prefer a factory appearance with upgraded internals.

Key Features:

• High Carbon Alloy Iron Construction: Cast from XG-150 high carbon alloyed iron for superior strength and heat tolerance under intense braking conditions
• Thermal Stability Profiling (TSP): DBA's proprietary heat-cycling process relieves internal casting stresses to maximize thermal stability and reduce metal fatigue in high-demand applications
• Kangaroo Paw Ventilation: Patented internal vane design featuring 144 diamond and teardrop patterned pillars delivers up to a 30% increase in surface area and 20% improvement in cooling efficiency versus traditional straight-vane designs
• OE-Style Smooth Finish: Clean, unslotted rotor face ideal for street driving and controlled race class regulations
• Corrosion-Resistant Coating: Painted non-friction areas help prevent rust and maintain appearance throughout the rotor's service life
• Rotor Diameter: 281.8mm
• Axle Position: Rear
• Quantity Required: 2 per vehicle

The DBA42816 is backed by DBA's reputation as an Australian manufacturer and global leader in performance brake technology, offering a proven upgrade over stock rotors for both street and performance driving applications.