Dynamite Friction 830-21014L Disc Brake Rotor - Rear Left

Rear Left Drilled and Slotted Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted, part number 830-21014L, is a rear left disc brake rotor built for select Hyundai and Kia applications. It features a slotted X drilled surface, a directional brake face, and a rust resistant coating for added corrosion protection.

With a 284 mm outside diameter, 10 mm nominal thickness, and 8 mm discard thickness, this rotor is sized for vehicles that use a 5-lug, 114.3 mm bolt circle and a 76 mm center hole. The Geospec Silver Grey hat finish adds a clean OE-style appearance while supporting long-term durability.

Key Features

• Part number 830-21014L rear left disc brake rotor
• Slotted X drilled braking surface for consistent pad contact
• Directional rotor design for the specified rear left position
• Rust resistant coating for improved corrosion resistance
• Geospec Silver Grey hat finish
• 5 bolt holes, 5 stud/lug holes, 114.3 mm bolt circle diameter
• 284 mm outside diameter, 32 mm height, 76 mm center hole diameter

DFC Geoperformance Rotor Line

The DFC Geoperformance Rotor - Drilled and Slotted line focuses on application-specific brake rotors with a performance-oriented surface design and corrosion-resistant finish. This rotor is built for rear left fitments on Hyundai Sonata, Kia K5, Kia Forte, and related models that use the listed dimensions and mounting pattern.

Detailed Description

Part number 830-21014L is a rear left brake rotor for select Hyundai Kona, Hyundai Sonata, Kia K4, Kia K5, Kia Niro EV, Kia Forte, Kia Forte5, Hyundai Elantra GT, Kia Optima, Hyundai Ioniq, Kia Soul EV, Hyundai Azera, Kia Cadenza, and related applications. It is engineered with a drilled and slotted braking surface to help maintain pad bite and provide a consistent contact pattern under repeated braking. The plain disc finish, rust resistant coating, and Geospec Silver Grey hat finish support a clean, durable replacement for the rear axle.

This rotor is a direct-fit style replacement for vehicles listed with rear left placement, including 2020-2026 Hyundai Sonata, 2021-2026 Kia K5, and 2023-2026 Kia Niro EV. It also covers additional Hyundai and Kia models across the 2013-2026 model years. This part number 830-21014L is intended for vehicles that match the specified rotor dimensions and 5-lug bolt pattern.

What It Helps Address

• Brake pulsation caused by worn or uneven rear rotors
• Reduced braking consistency from heat-affected rotor surfaces
• Corrosion on exposed rotor surfaces and hat area
• Noise or uneven pad contact from rotor wear
• Rear brake service needs on Hyundai and Kia models with the listed fitment

Installation Notes and Tips

Verify rear left fitment, rotor diameter, center hole diameter, bolt circle, and thickness before installation. This rotor is directional, so orientation matters during mounting. Inspect brake pads, caliper condition, and hub surface before installing the new rotor to help ensure even contact and proper brake operation.

Fits 2024-2026 Hyundai Kona, rear left. Fits 2020-2026 Hyundai Sonata, rear left. Fits 2025-2026 Kia K4, rear left. Fits 2021-2026 Kia K5, rear left. Fits 2023-2026 Kia Niro EV, rear left. Fits 2023-2024 Kia Forte, rear left. Fits 2020-2023 Kia Forte5, rear left. Fits 2020-2022 Kia Forte, rear left, Electric Parking Brake. Fits 2018-2020 Hyundai Elantra GT, rear left, Electric Parking Brake. Fits 2016-2020 Kia Optima, rear left. Fits 2013 Kia Optima, rear left. Fits 2017-2019 Hyundai Ioniq, rear left. Fits 2015-2019 Hyundai Sonata, rear left, Electric Parking Brake. Fits 2018-2019 Kia Niro, rear left. Fits 2015-2019 Kia Soul EV, rear left. Fits 2016-2017 Hyundai Azera, rear left. Fits 2014-2016 Kia Cadenza, rear left, Electric Parking Brake. Fits 2014-2015 Kia Optima, rear left, Electric Parking Brake.

Quality Assurance

Built by Dynamite Friction for the specified application and dimensions, this rotor is designed to meet the fitment and construction details listed above. Confirm the part number 830-21014L against your vehicle’s rear left brake setup before ordering.