DBA DBA42165 Series HD Plain Brake Rotor - 4000

The DBA DBA42165 is a 4000 Series Heavy-Duty (HD) brake rotor from Disc Brakes Australia, engineered for drivers who demand reliable, consistent stopping performance. Built to OEM replacement standards and beyond, this plain-face disc delivers improved thermal capacity and rotor longevity compared to standard factory rotors.

DBA's 4000 Series HD rotors feature Geomet® protective coating on non-friction surfaces to resist corrosion and maintain a clean appearance throughout the rotor's service life. The rotors are manufactured using a proprietary KP (Kangaroo Paw) vane design — a curved internal vane geometry that significantly increases airflow through the rotor compared to straight-vane designs, reducing operating temperatures and extending pad and rotor life.

Key Features:

• DBA 4000 Series Heavy-Duty (HD) plain brake disc
• Kangaroo Paw (KP) curved vane technology for superior heat dissipation
• Geomet® corrosion-resistant coating on non-friction surfaces
• Precision machined to strict dimensional tolerances for minimal runout
• Direct OEM replacement — no modifications required for installation
• Manufactured to ISO/TS 16949 quality standards
• Street and performance driving application

DBA rotors are designed and manufactured in Australia, with a reputation built on motorsport heritage and rigorous testing. The DBA42165 is a rear rotor designed for the Ford Mustang (2015 and newer), making it an ideal upgrade or direct replacement for worn OEM brake discs.