How many rotors do I need for my BMW 3 Series?

This brake rotor is sold individually. For your BMW 3 Series, you will need to purchase two of these rotors to replace both front left and front right sides for proper braking balance.

What is the benefit of drilled and slotted rotors?

Drilled holes help vent hot gases and heat away from the rotor surface, preventing brake fade. The slots help to clean the rotor surface by removing dust and water, ensuring better pad contact and consistent stopping power.

Does this rotor come with any hardware?

This product listing is for the brake rotor only. Installation hardware, such as mounting bolts or clips, is not included and may need to be purchased separately.

R1 84-91 BMW 325I (USA/Canada) Front Left Drilled & Slotted Black Brake Rotor

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Specifications

Brand: R1 Concepts
Part #: ECB-31017L
UPC: 194873257989

R1 84-91 BMW 325I (USA/Canada) Front Left Drilled & Slotted Black Brake Rotor

Name: R1 84-91 BMW 325I (USA/Canada) Front Left Drilled & Slotted Black Brake Rotor
Brand: R1 Concepts
Price: 105.06 USD
Availability: InStock

$105.06

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

This R1 Concepts brake rotor fits many 1984-1991 BMW 3 Series models. It's drilled and slotted for improved cooling and stopping power.

Key Features

Fits 1984-1991 BMW 3 Series models including 318i, 325, 325e, 325i, and 325is.
Front left side brake rotor.
Drilled holes help dissipate heat and gases for consistent braking.
Slotted design sweeps away dust and moisture for improved stopping power.
Black finish for a clean look.
Direct replacement rotor for a straightforward installation.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

This R1 Concepts brake rotor is designed for the front left side of a variety of 1984-1991 BMW 3 Series vehicles, including models like the 325i, 325e, and 318i. It features a black finish and a combination of drilled holes and slots, which help manage heat and improve braking performance, especially during repeated stops.

The drilled holes allow gases and heat to escape from the rotor surface, while the slots help to sweep away dust and water. This combination helps maintain consistent stopping power and can extend the life of your brake pads. The rotor is a direct replacement for the original part, meaning it fits right onto your existing brake system without needing modifications.

This rotor is sold individually, so you'll need to purchase two for the front axle. It's a solid option if you're looking to replace worn rotors or want an improved braking feel over stock.