Dynamite Friction 631-80041L Disc Brake Rotor - Front Left

Drilled and Slotted Front Left Rotor for Mazda 3

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-80041L, is a front left disc brake rotor built for specific Mazda applications. It combines a vented rotor design with a slotted X drilled surface and a zinc silver hat finish for a clean, corrosion-resistant appearance.

Fits 2004-2013 Mazda 3, front left. Fits 2010-2013 Mazda 3 Sport, front left. The 631-80041L is sized for vehicles that use a 278 mm outside diameter, 72 mm center hole, 5-bolt pattern, and 114.3 mm bolt circle.

Key Features

• Part number 631-80041L for front left brake rotor replacement
• Slotted X drilled brake surface for consistent pad contact and heat management
• Vented rotor construction
• Zinc silver hat finish with rust resistant coating
• Plain disc finish with directional brake surface
• 5 lug holes, 14 mm stud/lug hole diameter, 114.3 mm bolt circle
• Outside diameter: 278 mm; overall height: 48.7 mm
• Nominal thickness: 25 mm; discard thickness: 23 mm

Product Line Details

Dynamite Friction’s DFC Brake Rotor - Drilled and Slotted - Silver line focuses on application-specific rotors with a finished hat section and a functional brake surface pattern. This rotor line is built for drivers who want a direct-fit replacement rotor with a drilled and slotted face and corrosion-resistant coating for everyday braking service.

Detailed Description

The Dynamite Friction 631-80041L disc brake rotor is engineered for the front left position on select Mazda 3 and Mazda 3 Sport models. Its vented design helps support heat dissipation during repeated braking, while the slotted X drilled surface is intended to maintain pad bite and help manage surface buildup. The zinc silver hat finish and rust resistant coating add protection to the rotor’s non-friction areas, which is important for vehicles exposed to moisture and road debris.

This rotor is a fitment-based replacement for 2004-2013 Mazda 3 front left and 2010-2013 Mazda 3 Sport front left applications. The 631-80041L uses a 5-bolt pattern with a 114.3 mm bolt circle and a 72 mm center hole, making it important to verify rotor dimensions and position before ordering.

What This Rotor Helps Address

• Brake pulsation caused by worn or uneven front rotors
• Reduced braking consistency from heat-affected rotor surfaces
• Surface rust on exposed rotor hat areas
• Brake noise related to rotor wear or glazing
• Front left rotor replacement needs on Mazda 3 and Mazda 3 Sport models

Installation Notes and Tips

Confirm the front left position, rotor diameter, thickness, and bolt pattern before installation. Match the rotor to the vehicle’s brake setup and inspect pads, caliper hardware, and hub condition at the same time. Clean the hub mounting surface thoroughly so the rotor seats flat and runs true.

Because this rotor uses a directional brake surface, install it in the correct orientation for the front left side. Verify that the rotor thickness remains above discard thickness during service checks.

Quality Assurance

Built by Dynamite Friction for application-specific fitment, this rotor is manufactured to match the listed Mazda 3 and Mazda 3 Sport front left applications and dimensional requirements.