Dynamic Friction 633-31085R Disc Brake Rotor - Front Right

Drilled and Slotted Front Right Rotor

The Dynamic Friction DFC Brake Rotor - Drilled and Slotted - Black, part number 633-31085R, is a vented front right disc brake rotor built for select BMW applications. It features a slotted X drilled surface, a zinc black hat finish, and a rust-resistant coating for a clean, service-ready appearance.

With a 338 mm outside diameter, 79 mm center hole diameter, 120 mm bolt circle, and 5-lug pattern, this rotor is specified for BMW 135i, BMW 135is, BMW 328i, and BMW 330i front right fitments listed below. The directional braking surface is designed to match the rotor’s intended orientation.

Key Features

• Part number 633-31085R
• Slotted X drilled vented rotor construction
• Zinc black hat finish with rust-resistant coating
• 338 mm outside diameter and 73 mm overall height
• 5-bolt, 120 mm bolt circle design
• Plain disc finish with directional brake surface
• Nominal thickness: 25.8 mm; discard thickness: 24.4 mm

Product Line Details

Dynamic Friction’s DFC Brake Rotor - Drilled and Slotted - Black line focuses on rotor geometry and corrosion protection. This rotor combines drilled and slotted surface machining with a black-coated hat to support a cleaner appearance and consistent brake service fitment on the specified BMW front right positions.

Detailed Description

DFC Brake Rotor 633-31085R is a vented replacement rotor for BMW front right brake service where the listed dimensions and fitment match. The rotor’s 25.8 mm nominal thickness and 24.4 mm discard thickness provide the key wear measurements used during brake inspection, while the 14.9 mm stud/lug hole diameter and 120 mm bolt circle support correct wheel mounting geometry. For BMW 135i front right applications, BMW 135is front right applications, and select BMW 328i and 330i front right retrofit configurations, this rotor is built to align with the original brake package requirements noted in the fitment data.

Common Issues This Rotor Can Address

• Brake pulsation from a worn or uneven front rotor surface
• Reduced braking consistency caused by rotor wear beyond discard thickness
• Corrosion on the rotor hat area
• Brake noise associated with a damaged or heat-affected rotor face
• Fitment issues when replacing the front right rotor on listed BMW models

Installation Notes and Tips

Verify rotor dimensions, bolt pattern, and front right position before installation. Confirm whether the vehicle uses the standard rotor setup, optional full cast rotor design, or original design aluminum hat front rotor configuration listed in the fitment notes for BMW 135i, BMW 135is, BMW 328i, and BMW 330i. Because this rotor uses a directional brake surface, install it in the correct orientation for the front right side.

Fits 2008-2013 BMW 135i, front right. Fits 2013 BMW 135is, front right. Fits 2007-2013 BMW 328i, front right. Fits 2006 BMW 330i, front right.

Quality Assurance

Part number 633-31085R is manufactured to the listed dimensional and finish specifications for the confirmed BMW applications above. Review rotor thickness during brake service and replace components when wear reaches the discard measurement.