DBA DBA42737 Series Heavy Duty Brake Disc Rotor - 4000

The DBA DBA42737 is a 4000 Series Heavy Duty (HD) brake disc rotor from Disc Brakes Australia (DBA), engineered for demanding on- and off-road braking performance. Built to exceed OEM standards, the 4000 Series HD line is designed for vehicles that operate under higher-than-normal thermal and mechanical stress, making it a popular upgrade choice for SUVs, 4WDs, and light trucks.

Key Features:

• 4000 Series HD Construction: Manufactured from premium grey iron alloy for superior heat dissipation and resistance to warping under heavy braking loads
• Kangaroo Paw (KP) Venting: Features DBA's patented Kangaroo Paw internal vane geometry, which increases airflow through the rotor by up to 20% compared to standard straight-vane designs, dramatically reducing operating temperatures
• Symmetrical Design: The Kangaroo Paw venting pattern is symmetrical, meaning a single rotor fits either the left or right side — simplifying inventory and installation
• Corrosion-Resistant Finish: Features a zinc dichromate coating on non-braking surfaces to inhibit rust and maintain a clean appearance
• Precision Machined: Meets strict DTV (disc thickness variation) and lateral runout tolerances for smooth, vibration-free braking
• Direct OEM Replacement: Bolt-on fitment with no modifications required; matches original mounting dimensions and hub geometry
• Australian Made Quality: Engineered and quality-controlled to ADR (Australian Design Rules) and international ISO standards

The DBA 4000 Series HD rotor is an ideal upgrade for drivers seeking improved braking performance, reduced brake fade, and longer rotor life compared to standard OEM replacements. It is particularly well-suited for towing, off-road use, and spirited driving where consistent, reliable stopping power is critical.