DBA DBA43090 4000 Series Front Brake Rotor 380mm

The DBA 43090 is a high-performance front brake rotor from DBA's 4000 Series HD line, engineered for drivers seeking upgraded braking performance beyond standard OE levels. This direct replacement single-piece rotor features a smooth OE-style finish, making it ideal for performance applications where a factory appearance is required, such as controlled race divisions.

Advanced Metallurgy and Heat Management:

• Cast from high-carbon alloyed iron with Thermal Stability Profiling (TSP) to handle extreme heat and stress during intense braking
• Features DBA's patented Kangaroo Paw ventilation system with 144 diamond and teardrop-patterned pillars
• Delivers up to 30% increase in surface area and 20% improvement in cooling efficiency compared to traditional straight vane designs
• Enhanced thermal capacity allows the rotor to handle constant high temperatures over prolonged periods

Precision Engineering Features:

• 380mm diameter x 34mm thickness for maximum heat dissipation and stopping power
• Minimum thickness: 31mm for extended service life
• 5x120mm bolt pattern with 79mm center bore
• CBN (Cubic Boron Nitride) machine-turned finish minimizes disc thickness variation
• Heat treatment cycles realign the iron microstructure for increased stability and durability
• Thermo-Graphic heat paint indicators change color at critical temperature thresholds

This rotor is designed for front axle installation on Range Rover L405 and Range Rover Sport L494 models (2013 and newer) equipped with 380mm brake systems. Sold individually; quantity of 2 required per vehicle. Cross-references to Land Rover OEM part number LR016176.