OVERVIEW

Upgrade your GR Corolla's rear braking with DBA's legendary 4000 Series Slotted Rear Rotor. Cast from high-carbon XG-150 alloy iron and thermally profiled for extreme durability, this single-piece rotor handles the heat and stress of track days and hard street driving without fade or compromise. T3 bi-directional slots keep friction surfaces clean and responsive, while the patented Kangaroo Paw ventilation pattern delivers up to 30% more cooling surface than conventional designs. A direct bolt-on replacement for your OEM rear rotor, backed by DBA's proven motorsport heritage.

FEATURES

• High-Carbon XG-150 Cast Iron: Premium material engineered through Thermal Stability Profiling for consistent performance under repeated high-heat braking cycles.
• T3 Bi-Directional Slot Design: Precision CNC machined tri-symmetrical slots expel brake dust and friction gases efficiently, maintaining consistent bite and eliminating glazing.
• Kangaroo Paw Ventilation: DBA's patented 144 diamond and teardrop-patterned pillars increase cooling surface area by 30% and improve cooling efficiency by 20% over traditional straight-vane designs.
• Proven Track Heritage: DBA rotors are trusted by motorsport competitors worldwide for consistent, fade-resistant performance through extended high-speed braking events.
• Direct OEM Replacement: Bolt-on fitment to factory rear brake calipers with no modifications required.
• Thermographic Heat Paint: Temperature-sensitive paint markings indicate peak braking temperatures for performance monitoring.
• Single-Piece Construction: Durable, affordable one-piece design ideal for street performance and weekend track days.

SPECIFICATIONS

• Rotor Diameter: 326mm (12.8")
• Thickness: 11mm
• Series: DBA 4000 Series
• Construction: Single-Piece
• Material: High-Carbon Cast Iron (XG-150)
• Slot Design: T3 Bi-Directional (Tri-Symmetrical)
• Ventilation: Kangaroo Paw Pattern (144 pillars)
• Finish: Black High-Temperature Coating
• Warranty: 12 Months / 12,000 Miles

WHAT IS INCLUDED

• 1x DBA 4000 Series Rear Rotor (Single Rotor)

PART NUMBER

• DBA43467S
  

   

  OEM Cross-Reference:
• Toyota 42431-52190 / 42432-52010 — Rear Disc Brake Rotor (2023+ GR Corolla)

FITMENT

• 2023–2026 Toyota GR Corolla