DIXCEL FS Replacement Rotor Rings for AP Racing CP3581-542/3 - 343x32mm 12 Slot

DIXCEL FS Replacement Rotor Rings - AP Racing CP3581-542/3 - 343x32mm 12 Slot

Restore your braking performance with Dixcel FS replacement rotor rings, engineered in Japan and developed through decades of OEM supply and motorsport experience. The FS series is built for sustained competition use, where consistent friction, heat management, and dimensional stability under repeated high-energy stops matter more than anything else.

These are replacement friction rings only. They are designed to be fitted to your existing AP Racing two-piece assembly, reusing your current hat, bobbins, and hardware. This allows a worn disc face to be refreshed without replacing the complete assembly.

This listing covers the AP Racing 343 x 32mm racing caliper assembly, cross-referenced to AP Racing part numbers CP3581-542 and CP3581-543. The rings are side-specific: FS-34332A52R is the right hand ring and FS-34332A53L is the left hand ring. Both are supplied together as a pair. The SLIT-12 face carries twelve slots for consistent bite and clean pad degassing.

Important: This is a motorsport component intended for competition use. Bolts, nuts, bobbins, and springs are not supplied and must be reused from your existing assembly or sourced separately. Please confirm your hat, hardware, and disc dimensions before ordering.

Rotor Ring Specifications

• Dixcel Part Numbers: FS-34332A52R (Right) / FS-34332A53L (Left)
• Type: SLIT-12 (12 Slot)
• Outer Diameter (OD): 343mm
• Thickness (TH): 32mm
• Inner Bore: 230mm
• Outer Bore: 201.3mm
• Flange Thickness: 5.6mm
• Offset: 0.1mm
• Outer Disc Thickness: 8mm
• Inner Disc Thickness: 8mm
• Air Gap: 16mm
• PCD: 215.9mm
• Number of Holes: 12
• Hole Diameter: 6.4mm
• AP Racing Reference: CP3581-542 / CP3581-543
• Bolts and Nuts: Not supplied
• Bobbins and Springs: Not supplied
• Supplied As: Left and right pair

Compatibility, caliper reference numbers, and rotor ring specifications are provided in the section above. Please confirm your assembly dimensions and hardware before ordering.

If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.

Installation

We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.

Note

Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.