DBA DBA43146 4000 Series Standard Front Brake Rotor 345x30mm Kangaroo Paw Vented

The DBA DBA43146 is a 4000 Series Standard (HD) front brake rotor engineered as a direct-fit, single-piece performance upgrade over OE braking. Featuring DBA's smooth OE-style finish, this rotor is ideal for drivers who want the full thermal and structural benefits of the 4000 Series platform without a slotted surface — a popular choice for controlled race divisions and street performance builds.

Cast from XG-150 high carbon alloyed iron and subjected to DBA's proprietary Thermal Stability Profiling (TSP) process, the DBA43146 is built to handle the intense, sustained heat demands of performance driving. TSP enhances the rotor's metallurgy to resist warping, cracking, and heat-related fatigue over the long term.

Key Features:

• Kangaroo Paw ventilation — 144 diamond and teardrop patterned internal pillars deliver up to 30% more surface area and 20% greater cooling efficiency versus traditional straight-vane rotors
• High carbon alloyed iron construction — superior heat absorption and dissipation compared to standard OE rotors
• Thermal Stability Profiling (TSP) — specialized metallurgical treatment for consistent performance under extreme braking loads
• Thermo-Graphic Heat Paint (THGP) — factory-applied paint markings that permanently change color at specific temperature thresholds, allowing monitoring of rotor fatigue and brake system health
• Smooth OE-style finish — 4000 Series HD (no suffix) design suits controlled race classes or drivers preferring an OE appearance
• Direct OE replacement — single-piece design for straightforward installation
• Sold individually

Specifications:

• Outside Diameter: 345mm (13.58 in)
• Nominal Thickness: 30mm (1.18 in)
• Minimum Discard Thickness: 28mm
• Overall Height: 52.3mm (2.06 in)
• Center Hub Bore: 69mm
• Stud/Lug Holes: 5
• Vane Style: Kangaroo Paw
• Rotor Type: Vented, 1-Piece
• Surface Finish: Smooth (Standard HD)
• Weight: 12 kg (26.46 lbs)
• OEM Cross-Reference: 51712S0100

The DBA 4000 Series Standard rotor is engineered for performance street driving, track days, and spirited canyon use where proven thermal management and long rotor life are priorities. Pair with DBA Street Performance brake pads for a fully optimized braking system.