ATE 428197 Disc Brake Rotor - Rear Left

ATE Original Rotor for Porsche 911

The ATE Original Rotor 428197 is a rear left disc brake rotor engineered for Porsche 911 applications that call for a vented, drilled rotor with a rust-resistant coating. Built with alloyed high-carbon material and full cast construction, it supports consistent braking performance and durability in demanding street use.

ATE Original Rotor 428197 reflects ATE’s OE-focused brake engineering and coated rotor approach, bringing European OEM-level specifications to Porsche 911 rear brake service. This rotor is a direct-fit option for select Porsche 911 models and is built to match the dimensional and material requirements of the application.

Key Features

• Part number 428197
• Rear left disc brake rotor for select Porsche 911 applications
• Alloyed / high-carbon material for stable thermal performance
• Vented rotor design with drilled surface type
• Directional disc finish for application-specific rotation
• Rust resistant coating helps protect the rotor surface
• Full cast construction
• 5-bolt hole pattern
• Outside diameter: 330.00 mm
• Nominal thickness: 28.00 mm; discard thickness: 26.00 mm

Detailed Description

ATE Original Rotor 428197 is built for Porsche 911 rear left brake service where OE-style fit, rotor balance, and consistent stopping feel matter. The vented, drilled design helps manage heat, while the high-carbon alloyed material and full cast construction support structural stability under repeated braking. The rust resistant coating adds surface protection during storage and everyday exposure, and the directional finish aligns with the rotor’s intended rotation pattern. ATE, part of Continental Automotive Systems, applies brake-system engineering experience from original equipment development to its aftermarket brake components, including this ATE Original Rotor line.

This part cross-references Brembo 09.C878.11 for the same application.

What This Rotor Helps Address

• Brake vibration caused by worn or heat-affected rear rotors
• Reduced braking consistency from rotor thickness loss
• Surface corrosion on exposed brake rotor faces
• Heat buildup during repeated stops in Porsche 911 rear brake service
• Fitment issues when replacing a rear left rotor with the correct OE-style dimensions

Installation Notes and Tips

Fits 2022-2023 Porsche 911, rear left. Fits 2020-2021 Porsche 911, rear left; meets or exceeds European OEM specifications; excludes ceramic composite brakes. Fits 2004-2017 Porsche 911, rear left; meets or exceeds European OEM specifications; excludes ceramic composite brakes. Fits 2002 Porsche 911, rear left; meets or exceeds European OEM specifications; excludes ceramic composite brakes. Fits 2018-2019 Porsche 911, rear left; meets or exceeds European original equipment manufacture specifications; ceramic composite brakes. Fits 2018-2019 Porsche 911, rear left; meets or exceeds European original equipment manufacture specifications; except central locking wheels; except ceramic composite brakes. Fits 2016 Porsche 911, rear left; meets or exceeds European original equipment manufacture specifications; except central locking wheels; except ceramic composite brakes. Fits 2001-2004 Porsche 911, rear left; meets or exceeds European OEM specifications.

Verify rotor dimensions, bolt pattern, and brake package before installation. This rotor does not include bearings or an ABS tone ring.

Quality Assurance

ATE brake parts are developed with Continental Automotive Systems engineering standards and OE-focused manufacturing practices. The ATE Original Rotor line is built to meet higher aftermarket expectations for material quality, coating, and dimensional accuracy.