EBC RK1846 Vented Rear Rotors for 17-25 Audi A4/A5/Q5/SQ5, 15-23 Porsche Macan

Vehicle Fitment

• 2017-2025 Audi A4 (B9; 2.0T FWD/quattro; rear 330x22 mm rotor)
• 2018-2025 Audi A5 (B9; Coupe/Sportback/Cabriolet; 2.0T; rear 330x22 mm)
• 2018-2025 Audi Q5 (FY; 2.0T quattro; rear 330x22 mm)
• 2018-2025 Audi SQ5 (FY; 3.0T quattro; rear 330x22 mm)
• 2017-2024 Audi Q7 (4M; 2.0T/3.0T quattro trims using 330x22 mm rear rotor)
• 2015-2023 Porsche Macan (all 4-cyl/V6 trims using 330x22 mm rear rotor)

Fitment Notes

• Rear axle rotors (left and right); OE-style plain face.
• Confirm your rear rotor spec: 330 mm diameter x 22 mm thick, ~36.1 mm height, 68 mm center bore, 5x112 PCD.
• Compatible with factory single-piston rear calipers and Electronic Parking Brake (EPB) where equipped.
• Some trims/option packages may use different rear rotor sizes; verify before ordering (VIN or rotor size check recommended).

Features

• G3000 gray iron casting for OE-grade durability and heat capacity
• Precision-machined braking surface for consistent pad contact
• Geomet-style anti-corrosion coating on hat and non-friction areas
• Mill-balanced and 100% runout-checked to minimize vibration
• Direct-fit replacement; maintains OEM pedal feel and ABS/EPB function
• Optimized for use with EBC Ultimax/Greenstuff/Redstuff pads
• Non-directional finish for straightforward bedding
• Meets or exceeds OE dimensional tolerances

Specifications

• Part Number: RK1846
• Position: Rear (vented, plain face)
• Diameter: 330 mm (13.00 in)
• Thickness (new/min): 22 mm / 20 mm
• Overall Height: ~36.1 mm
• Center Bore: 68 mm
• Bolt Pattern: 5x112 mm
• Material/Finish: G3000 cast iron / black anti-corrosion coating

Included Components

• 2x Rear rotors (RK1846), left + right
• Protective shipping sleeves and surface coating
• Specification/installation sheet

Product Description

The EBC RK1846 Ultimax/OE-style rear rotors are a direct replacement for select Audi B9/FY/4M platforms and the Porsche Macan that use the 330x22 mm rear rotor package. Built from G3000 iron, precision-machined, and coated for corrosion resistance, RK1846 maintains factory braking characteristics while improving longevity and appearance.

Each rotor is mill-balanced and runout-checked to help ensure smooth, quiet operation with OEM calipers and EPB systems. Always confirm your vehicle's rear rotor size and hardware (330x22 mm, 5x112 PCD, 68 mm hub bore) before purchase, as some trims/options utilize different rear brake packages.