Zimmermann 400.3685.20 Disc Brake Rotor - Front

Zimmermann 400.3685.20 Front Brake Rotor

Zimmermann 400.3685.20 is a coated, perforated disc brake rotor built to OE-style dimensions for front axle service. It is engineered for Mercedes-Benz GLE and ML applications that require a 350 mm front rotor with corrosion-resistant surface protection and precise hub fitment.

Key Features

• Perforated disc brake rotor for front brake applications
• Coated surface helps resist corrosion and supports cleaner long-term appearance
• 350 mm outer diameter with 32 mm thickness
• Minimum thickness: 29.4 mm
• Hub bore: 67 mm
• Bolt circle: 112 mm
• Height: 54.5 mm
• Weight: 11.7 kg
• OE-style replacement manufactured to specified automotive dimensions and material quality

Detailed Description

This Zimmermann brake rotor is built for front axle use on select Mercedes-Benz GLE and ML models, including GLE400, GLE350, GLE500, GLE300d, GLE350d, ML250, ML350, and ML400 applications listed below. The perforated design and coated surface support consistent braking performance while helping the rotor maintain a cleaner, more corrosion-resistant finish. Part number 400.3685.20 is also referenced in OE-style replacement searches for Mercedes-Benz GLE front brake rotor and Mercedes-Benz ML front brake rotor applications.

Zimmermann manufactures its standard brake rotors to dimensions and material quality specified by vehicle manufacturers, making this rotor a direct-fit service part for the listed AMG Line exterior and AMG Sport Package exterior configurations. This part cross-references Bosch 18253 and Brembo 09.A958.21 for the same application.

What It Helps Address

• Front brake vibration caused by worn or out-of-spec rotors
• Reduced braking consistency from rotor wear
• Corrosion on exposed rotor surfaces
• Brake noise related to rotor condition
• Service replacement for vehicles requiring a 350 mm front disc rotor

Installation Notes and Tips

• Verify rotor diameter, thickness, hub bore, and bolt pattern before installation.
• Confirm the vehicle is equipped with the AMG Line exterior or AMG Sport Package exterior where noted.
• Check minimum thickness before reuse or replacement decisions.
• Inspect pads, calipers, and wheel hub condition during brake service.
• Follow manufacturer torque and bedding procedures after installation.

Quality Assurance

Zimmermann standard brake rotors are produced as equivalent-quality replacement parts for the specified vehicle applications, with coated surface protection added for improved corrosion resistance and appearance. Part number 400.3685.20 is built for the listed Mercedes-Benz GLE and ML front brake applications.