Dynamite Friction 633-31018R Disc Brake Rotor - Rear Right

Overview of the Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31018R) is engineered for BMW models including the 318i, 318is, 325e, 325es, 325i, 325is, and 325iX. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Part Number: 633-31018R
• Compatible with BMW 318i, 318is, 325e, 325es, 325i, 325is, 325iX
• Disc Type: Solid, drilled and slotted
• Disc Finish: Plain
• Hat Finish: Zinc black with rust-resistant coating
• Nominal Thickness: 10 mm; Discard Thickness: 8.4 mm
• Outside Diameter: 258 mm; Overall Height: 60 mm
• Bolt Hole Quantity: 4; Bolt Hole Diameter: 15 mm; Bolt Circle Diameter: 100 mm
• Directional brake surface for optimized performance

Product Line Details: DFC Brake Rotor - Drilled and Slotted - Black

The DFC Brake Rotor - Drilled and Slotted - Black line by Dynamite Friction offers rotors designed with enhanced heat dissipation and improved braking response. The drilled and slotted surface pattern helps reduce brake fade by allowing gases and debris to escape, while the black zinc-coated hat provides corrosion resistance. This product line is tailored for drivers seeking reliable braking components compatible with specific BMW models.

Technical Specifications and Features

This rotor is a solid type with a directional surface featuring both drilled holes and slots, which aid in maintaining consistent braking under demanding conditions. The nominal thickness of 10 mm ensures durability, while the discard thickness of 8.4 mm indicates when replacement is necessary. The rotor’s 258 mm outside diameter and 60 mm overall height are designed to match the OEM specifications for the listed BMW vehicles. The zinc black hat finish includes a rust-resistant coating to extend rotor life and maintain appearance.

Applications and Problem Solving

• Reduces brake fade during aggressive or prolonged braking
• Improves heat dissipation to maintain consistent braking performance
• Helps prevent rust and corrosion on the rotor hat
• Compatible replacement for worn or damaged rotors on BMW 318i, 318is, 325e, 325es, 325i, 325is, and 325iX
• Addresses uneven brake pad wear caused by rotor surface imperfections

Installation Notes and Tips

Ensure the rotor surface is clean and free of any contaminants before installation. Verify that the bolt hole pattern (4 holes, 15 mm diameter, 100 mm bolt circle) matches your vehicle’s hub. The directional surface requires correct orientation during installation to maintain optimal braking performance. Always measure rotor thickness before installation and replace if below the discard thickness of 8.4 mm.

Quality Assurance

Dynamite Friction rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The rust-resistant zinc black coating on the rotor hat helps protect against corrosion, contributing to longer service life. Please consult product documentation or contact the manufacturer for warranty details specific to part number 633-31018R.