DBA DBA43149 4000 Series HD Rear Disc Brake Rotor 314x20mm

The DBA DBA43149 is a 4000 Series HD direct replacement rear brake rotor engineered for performance-focused drivers who demand more than standard OE braking. Measuring 314mm x 20mm, this single-piece vented rotor features a smooth OE-style finish — ideal for drivers seeking the advanced metallurgy and thermal engineering of the 4000 Series platform while maintaining a stock appearance, such as those competing in controlled race divisions.

Key Features:

• High Carbon Alloyed Iron (XG-150): Cast from premium XG-150 high carbon alloyed iron and subjected to DBA's Thermal Stability Profiling (TSP) process, enabling the rotor to handle repeated, intense braking applications with reduced risk of warping or cracking
• Kangaroo Paw Vane Design: DBA's patented ventilation system uses 144 diamond and teardrop-patterned pillars to deliver up to 30% more surface area and up to 20% better cooling efficiency compared to traditional straight-vane rotors
• Thermo-Graphic Heat Paint: Factory-applied heat-sensitive paint markings permanently change color at critical temperature thresholds, giving drivers a visual indicator of peak rotor temperatures and assisting with rotor fatigue monitoring and warranty assessments
• HD Smooth Finish: Features a clean OE-style rotor surface — all the thermal and structural benefits of the 4000 Series without slotting or drilling, making it well-suited to controlled motorsport classes that restrict rotor modifications
• Direct OE Replacement: Bolt-on fitment with no caliper relocation or additional brackets required
• Corrosion-Resistant Coating: Protective finish reduces rust formation, preserving appearance and longevity throughout the rotor's service life

The DBA 4000 Series platform is engineered for performance applications including street driving, track days, and rally use. The DBA43149 is sold as a single rotor.