What is the benefit of drilled and slotted rotors?

Drilled holes help to vent heat away from the rotor surface, which can reduce brake fade during heavy use. The slots help to sweep away brake dust and gases that can build up between the pad and rotor, maintaining better contact for more consistent stopping power.

Does this rotor come with any hardware?

This listing is for a single rear left brake rotor. Hardware such as lug nuts or brake pads are typically sold separately. Please refer to the product details for a complete list of included components.

What is the black finish on the rotor?

The black finish on this rotor is a protective coating applied to the surface. It helps to prevent rust and corrosion during shipping and storage, and also provides a clean, finished look once installed.

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Specifications

Brand: R1 Concepts
Part #: ECB-31060L
UPC: 194873258764

R1 03-06 BMW Z4 Rear Left Drilled & Slotted Black Brake Rotor

Name: R1 03-06 BMW Z4 Rear Left Drilled & Slotted Black Brake Rotor
Brand: R1 Concepts
SKU: r1-concepts-r1-03-06-bmw-z4-rear-left-drilled-slotted-black-brake-rotor-t14-974135
Price: 101.36 USD
Availability: BackOrder

$101.36

On Backorder

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

Fits 03-05 BMW Z4. This rear left R1 Concepts drilled and slotted brake rotor offers improved stopping performance.

Key Features

Fits 2003-2005 BMW Z4 rear left.
Features drilled holes to help dissipate heat and reduce brake fade.
Slotted design helps clear away brake dust and gas for improved stopping power.
Constructed from durable cast iron for reliable performance.
Black finish offers corrosion resistance and a clean look.
Designed as a direct replacement for easy 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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About this part

Product Details

This rear left brake rotor from R1 Concepts features a black finish and is drilled and slotted. It's made to fit your 2003-2005 BMW Z4, providing a solid option for replacing worn-out factory rotors. The drilled holes help dissipate heat and the slots help clear away dust and gas, which can improve braking consistency, especially during harder stops.

The rotor is constructed from a durable cast iron material, chosen for its ability to handle the heat generated during braking. The black finish not only looks good behind the wheel but also offers some protection against rust. This rotor is designed as a direct replacement, meaning it should install without needing any modifications to your Z4's braking system.