Front Brake Rotor 312 mm Diameter

Brembo 09.9772.1X is a replacement brake disc for the front axle. The manufacturer specifies a 312 mm diameter, 25 mm nominal thickness and ventilated disc construction. Match the complete factory brake application before ordering.

Key Features

• Front axle application.
• Disc diameter: 312 mm; nominal thickness: 25 mm.
• Disc type: Ventilated.
• Manufacturer part number: 09.9772.1X.
• Manufacturer minimum disc thickness: 22.8 mm.

Fitment

The applications below are catalog references. Before ordering 09.9772.1X, confirm the VIN/brake option, caliper configuration, disc dimensions and all manufacturer application notes. Modified brake systems require separate confirmation.

Specifications

What’s Included

• One Brembo 09.9772.1X replacement brake rotor, consistent with the US catalogue quantity of one per box.

Brake pads, calipers, wear sensors, tools and brake fluid are separate. Confirm any separately required fasteners and service hardware against the vehicle service procedure and the supplied package.

About Brembo

Brembo manufactures original-equipment and replacement braking components. Its application catalogue provides part-specific dimensions and brake-system information for selecting replacement discs.

FAQ

What is the 09.9772.1X?

It is a Brembo replacement brake disc for the front axle, with a 312 mm diameter and 25 mm nominal thickness.

Does this listing include two rotors?

The US manufacturer catalogue lists one rotor per box for this part. Order the required quantity for the vehicle service procedure.

Does a listed model guarantee compatibility with every brake package?

No. Verify the exact factory brake option, disc dimensions, installed caliper and every application note before ordering.

Does a similar-looking rotor confirm fitment?

No. Compare diameter, thickness, overall height, center bore, mounting holes and the exact part number.

Are pads and calipers included?

No. This listing is for a replacement rotor. Pads, calipers, sensors and other service components are separate.

Can this rotor be selected for an aftermarket brake kit?

An aftermarket caliper or brake conversion may require a different disc. Match the installed kit specifications before ordering.

How is the wear limit checked?

Brembo lists a minimum thickness of 22.8 mm. Measure the disc and inspect its condition using the vehicle service procedure.

Which torque and installation instructions apply?

Use the vehicle service information and Brembo instructions for each fastener and operation. Do not apply a general catalogue torque value to every fastener.

Installation Instructions

1. Verify the factory brake option, exact disc dimensions and required quantity before disassembly.
2. Inspect the hub, bearing, caliper, pads and mounting surfaces using the vehicle service information.
3. Install the correct disc and required service hardware, check runout and clearance, and apply the specified torque for each fastener.
4. Complete the required operational checks and bedding procedure before normal driving.