Brembo OE 09.B743.51 Rear Vented Brake Rotors 320mm for 13-20 Mercedes SL

Vehicle Fitment

• 2013-2020 Mercedes-Benz SL400 (R231, RWD, 3.0L Twin-Turbo V6)
• 2017-2020 Mercedes-Benz SL450 (R231, RWD, 3.0L Twin-Turbo V6)
• 2013-2020 Mercedes-Benz SL550 (R231, RWD, 4.7L Twin-Turbo V8)

Fitment Notes

• Rear axle brake rotor.
• For vehicles equipped with 320mm rear ventilated brake discs.
• Verify rotor dimensions and OE part number prior to ordering.
• Sold as a pair by Brembo (2 units per box).
• Not intended for AMG applications unless OE specifications match.

Features

• OE-equivalent Brembo Prime Series brake rotor.
• UV-coated finish for superior corrosion protection.
• High-carbon cast iron construction.
• Ventilated design improves heat dissipation.
• Precision-machined friction surfaces.
• Factory-balanced to minimize vibration and brake judder.
• Direct-fit replacement requiring no modifications.
• ECE R90 approved design.
• Includes rotor retaining screws where applicable.
• Engineered to Brembo OE quality standards.

Specifications

• Part Number: 09.B743.51
• Brand: Brembo OE
• Series: Prime
• Position: Rear
• Rotor Type: Vented
• Diameter: 320 mm
• Nominal Thickness: 24 mm
• Minimum Thickness: 22 mm
• Height: 51 mm
• Center Bore: 67 mm
• Bolt Pattern: 5-Lug
• Tightening Torque: 130 Nm
• Material: High-Carbon Cast Iron
• Finish: UV Anti-Corrosion Coating

Included Components

• 2x Brembo OE 09.B743.51 Rear Brake Rotors
• 2x Rotor Retaining Screws (where supplied by Brembo)

Product Description

The Brembo OE 09.B743.51 Prime Rear Brake Rotor is engineered to provide original equipment braking performance for select Mercedes-Benz R231 SL-Class models. Manufactured from premium high-carbon cast iron, this rotor delivers excellent thermal stability, reduced vibration, and consistent braking performance under a wide range of driving conditions.

Its ventilated internal vane construction improves cooling efficiency and helps reduce brake fade during repeated braking events. Brembo's UV coating protects the rotor hat, outer edge, and internal ventilation channels against corrosion, helping maintain both appearance and long-term durability without requiring pre-installation cleaning.

Designed as a direct OE replacement, the 09.B743.51 rotor installs without modification and meets Brembo's stringent quality and performance standards. It is an ideal solution for drivers seeking factory-level fitment, reliable stopping power, and long service life from one of the most respected names in braking technology.