Dynamite Friction 633-31142L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31142L) is engineered for BMW X5 and X6 models. This vented disc brake rotor combines drilled and slotted surface features with a rust-resistant zinc black hat finish to enhance braking performance and durability.

• Compatible with BMW X5 and X6 models
• Directional drilled and slotted surface for improved heat dissipation
• Vented rotor design to reduce brake fade
• Zinc black coated hat for corrosion resistance
• Nominal thickness of 30 mm with discard thickness at 28.4 mm
• Five bolt holes with 16.6 mm diameter and 120 mm bolt circle diameter
• Overall diameter of 348 mm and height of 62.2 mm

Detailed Product Features and Specifications

This DFC Brake Rotor - Drilled and Slotted - Black is designed with a vented rotor type that allows for better airflow, reducing heat buildup during braking. The rotor features a directional surface with both drilled holes and slots, which help to evacuate gases, dust, and water from the braking surface, improving pad contact and braking consistency. The rotor’s nominal thickness is 30 mm, with a discard thickness of 28.4 mm, ensuring a long service life before replacement is necessary.

The rotor’s hat is finished with a zinc black coating, providing enhanced rust resistance to maintain structural integrity and appearance over time. The bolt hole diameter and stud/lug hole diameter are both 16.6 mm, with a bolt circle diameter of 120 mm, matching the specifications required for BMW X5 and X6 vehicles. The overall diameter of 348 mm and height of 62.2 mm ensure proper fitment and compatibility.

About the DFC Brake Rotor - Drilled and Slotted - Black Product Line

The DFC Brake Rotor - Drilled and Slotted - Black line from Dynamite Friction focuses on delivering rotors that balance performance and durability. The drilled and slotted design is intended to improve braking efficiency by enhancing heat dissipation and reducing brake fade, while the black zinc coating on the rotor hat offers corrosion protection. This product line is suitable for drivers seeking reliable braking components tailored to specific vehicle fitments like the BMW X5 and X6.

Applications and Problem Solving

• Reduces brake fade during aggressive or prolonged braking
• Improves wet weather braking performance by channeling water away
• Minimizes brake dust buildup on rotor surface
• Prevents rust and corrosion on rotor hats for longer service life
• Ensures consistent braking response for BMW X5 and X6 vehicles

Installation Notes and Tips

When installing the 633-31142L rotor, ensure the rotor thickness is measured and compared to the discard thickness of 28.4 mm to confirm suitability. The directional drilled and slotted surface requires correct orientation during installation to maintain optimal performance. Verify that the bolt hole pattern (5 holes, 16.6 mm diameter, 120 mm bolt circle) matches the vehicle hub. Proper torque specifications should be followed to avoid rotor warping.

Quality Assurance

Dynamite Friction manufactures this rotor to meet OEM specifications for fitment and performance on BMW X5 and X6 models. The rust-resistant zinc black coating and vented rotor design contribute to durability and consistent braking. Warranty information is not specified for this part number 633-31142L; please consult the manufacturer or distributor for details.