Dynamite Friction 631-21036L Disc Brake Rotor - Rear Left

Drilled and Slotted Rear Left Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-21036L, is a rear left disc brake rotor built for specific Hyundai and Kia applications. It combines a slotted X drilled surface with a zinc silver hat finish and rust-resistant coating for a clean, service-ready appearance.

Compatible With 2019-2023 Hyundai Kona Electric, rear left; 2019-2022 Kia Niro EV, rear left; and 2017-2020 Kia Cadenza, rear left. The directional braking surface is engineered for the listed application and the rotor measures 300 mm outside diameter with a 32.3 mm height.

Key Features

• Part number 631-21036L
• Rear left disc brake rotor
• Slotted X drilled surface type
• Directional brake surface
• 300 mm outside diameter
• 32.3 mm height
• Nominal thickness: 10 mm
• Discard thickness: 8.4 mm
• 5-bolt / 5-lug hole pattern
• 114.3 mm bolt circle diameter
• 76 mm center hole diameter
• Zinc silver hat finish
• Rust resistant coating: yes

Product Details

The DFC Brake Rotor - Drilled and Slotted - Silver line focuses on application-specific brake rotors with a finished appearance and corrosion protection. For this rear left rotor, the drilled and slotted face supports consistent pad contact characteristics, while the silver zinc hat finish helps maintain a cleaner look behind the wheel. This part number 631-21036L is listed for Hyundai Kona Electric, Kia Niro EV, and Kia Cadenza rear left positions only.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Replacement Reasons

• Rotor wear approaching discard thickness
• Brake pulsation from an uneven rotor surface
• Visible corrosion on the rotor hat or braking surface
• Noise or vibration during braking service
• Need for a direct rear left replacement rotor

Installation Notes

Verify rotor dimensions, bolt pattern, center hole diameter, and rear left position before installation. Confirm pad condition and inspect caliper hardware, hub surface, and wheel bearing area during brake service. Because the braking surface is directional, install the rotor in the correct orientation for the listed application.

Quality Assurance

Dynamite Friction supplies application-specific brake components with published dimensional data for accurate parts matching. Use the listed measurements and vehicle fitment details to confirm compatibility before installation.