DuraGo BR3480 Disc Brake Rotor - Rear

DuraGo BR3480 Rear Brake Rotor

The DuraGo BR3480 is a rear disc brake rotor built from cast iron with a full cast construction for consistent braking performance. It is a solid, drum-in-hat rotor with a non-directional brake surface, making it a direct replacement choice for select BMW rear brake applications.

Key Features

• Cast iron construction for dependable braking strength
• Full cast, solid rotor design
• Drum-in-hat rotor configuration
• Non-directional brake surface
• 4-bolt mounting pattern with 100 mm bolt circle diameter
• Outside diameter: 258 mm; center hole diameter: 62 mm
• Nominal thickness: 9.9 mm; discard thickness: 8.4 mm
• Fits rear brake applications on select BMW 318i, 318is, 325i, 325is, and 325e models

Detailed Description

Built for rear brake service, the DuraGo BR3480 rotor is engineered to match the fit, form, and function requirements expected in aftermarket brake replacement. Its solid, drum-in-hat design and cast iron construction support stable braking characteristics for vehicles that use this rotor style. This part number BR3480 is listed for 1991 BMW 318i rear applications through 4/91, 1991 BMW 318is rear, 1990-1991 BMW 325i rear with a 258 mm rotor diameter, 1987-1991 BMW 325is rear, 1987-1989 BMW 325i rear, and 1984-1987 BMW 325e rear.

DuraGo has a long history in aftermarket brake manufacturing, and its rotor program is built in ISO-certified factories with attention to catalog accuracy and application coverage. This rotor cross-references Anchor 3480 and 9898 for the same application. If you are sourcing a rear brake rotor for a BMW 325i rear brake repair or a BMW 318i rear rotor replacement, BR3480 is the part number to verify against your vehicle’s brake specifications.

What It Helps Address

• Rear brake rotor wear from normal pad contact
• Brake pulsation caused by rotor thickness variation
• Reduced braking consistency from a worn or scored rotor surface
• Noise related to an uneven or damaged rear rotor
• Service needs on BMW rear brake systems using a 258 mm rotor diameter

Installation Notes and Tips

Confirm rotor diameter, center hole diameter, bolt pattern, and rear application before installation. This rotor is non-directional, which simplifies orientation during service. Inspect pads, caliper condition, and hub mating surfaces at the same time to help ensure even contact and proper brake operation. Verify fitment carefully on 1991 BMW 318i models, since the listing notes a cutoff of 4/91.

Quality Assurance

DuraGo manufactures brake components in ISO-certified factories and focuses on fit, form, and function for aftermarket replacement. The BR3480 is produced to meet the dimensional and application requirements listed for the covered BMW rear brake applications.