R1 Rear Left Black Drilled Brake Rotor 2013-2021 BMW 340I Xdrive/230I Xdrive & More - 623-31114L

R1 Rear Left Black Drilled Brake Rotor 623-31114L is engineered for select 2013-2021 BMW 340I Xdrive, 230I Xdrive and additional listed models applications. This eLINE Black Series rotor combines a performance-focused cross-drilled braking surface with a black zinc finish designed to help protect exposed non-friction areas from corrosion while delivering a clean, aggressive appearance. Precision-drilled and countersunk openings are designed to promote heat dissipation during repeated braking, making this rotor a strong street-performance replacement for drivers who want both function and style. This is a side-specific Rear Left rotor; verify the axle and side before ordering.

Key Features & Specs:

• Brand: R1 Concepts
• Series: eLINE Black Drilled
• SKU: rnc623-31114L
• Part Number: 623-31114L
• UPC: 198502684924
• Rotor Position: Rear Left
• Rotor Type: Cross-drilled brake rotor
• Finish: Black zinc
• Corrosion Protection: Rust-resistant coating on protected non-friction surfaces
• Sold As: Individual rotor
• Weight: 21 lb
• Fitment Orientation: Rear Left — side-specific; manufacturer part-number orientation must be matched correctly
• Performance Focus: Street-performance heat management and corrosion-resistant appearance
• Bedding Note: Black zinc wears from the pad-contact surface during normal bedding while remaining on non-friction areas

Fitment:

• 2013-2021 BMW 340I Xdrive, 230I Xdrive, 335I Xdrive, 328D Xdrive Sedan & Wagon, 435I Gran Coupe, 230I, 328I, 328I Xdrive, 328XI, 335I, 435I Xdrive, 330I Xdrive Sedan, 428I Gran Coupe, 440I Convertible, 428I Xdrive Coupe & Convertible, 435I, 340I, 440I Xdrive Gran Coupe, 440I Xdrive Coupe, 430I Xdrive, 430I, Activehybrid 3, 428I, 440I Coupe, 435I Xdrive Gran Coupe, M240I Xdrive, 440I Gran Coupe, M240I Coupe & Convertible, 440I Xdrive Convertible
• Rotor Location: Rear Left

R1 eLINE Black Drilled Brake Rotor Series:

R1 eLINE Black Series Drilled Brake Rotors combine performance-oriented cross-drilled construction with a protective black zinc finish for drivers looking to upgrade braking appearance, heat management and corrosion resistance. Precision-drilled openings help promote heat dissipation during repeated braking, while countersunk hole edges are engineered to reduce stress concentration around the drilled surfaces. Built around application-specific replacement dimensions, the eLINE Black Drilled series offers a performance-focused rotor option for street-driven cars, trucks and SUVs.

The rotor arrives with a full black zinc finish. During proper bedding, the coating on the brake-pad contact surface naturally wears away to expose the metallic friction surface while the black finish remains on protected non-contact areas such as the rotor hat. Rotor construction, dimensions and fitment vary by application, so axle position and left/right orientation should always be matched to the individual manufacturer part number.