Dynamite Friction 631-31030R Disc Brake Rotor - Rear Right

Drilled and Slotted Rear Rotor for BMW

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-31030R, is a rear right disc brake rotor built for select BMW applications. It features a slotted X-drilled surface, zinc silver hat finish, and a rust resistant coating for a clean, service-ready appearance.

Key Features

• Part number: 631-31030R
• Disc brake rotor for the rear right position
• Slotted X-drilled surface type
• Directional brake surface
• Plain disc finish with zinc silver hat finish
• Rust resistant coating
• 5-bolt, 5-lug design
• Outside diameter: 324 mm
• Nominal thickness: 12 mm
• Discard thickness: 10.4 mm
• Center hole diameter: 75 mm
• Bolt circle diameter: 120 mm

Product Details

This DFC Brake Rotor - Drilled and Slotted - Silver is engineered for BMW 740i, BMW 740iL, BMW 840Ci, BMW 850Ci, BMW 850CSi, and BMW 850i rear right brake service. The drilled and slotted rotor face helps maintain consistent pad contact, while the directional design and vented-style construction details support stable braking performance under repeated stops. The zinc silver hat finish and rust resistant coating help preserve the rotor’s appearance in demanding wheel-well conditions. Part number 631-31030R is a direct-fit rear right rotor for the listed BMW fitments.

Common Brake Service Issues It Addresses

• Rear brake rotor wear that has reached discard thickness
• Brake pulsation from uneven rotor surface condition
• Reduced braking consistency during repeated stops
• Corrosion on the rotor hat and exposed metal surfaces
• Noise or vibration associated with worn rear rotors

Installation Notes

Fits 1997-2001 BMW 740i, rear right. Fits 1995 BMW 740i, rear right. Fits 1995-2001 BMW 740iL, rear right. Fits 1994-1997 BMW 840Ci, rear right. Fits 1994-1997 BMW 850Ci, rear right. Fits 1994-1995 BMW 850CSi, rear right. Fits 1993 BMW 850Ci, rear right, with vehicle production date to 7/93. Fits 1993 BMW 850Ci, rear right, with vehicle production date from 8/93. Fits 1991-1992 BMW 850i, rear right.

Verify rotor dimensions, bolt pattern, and rear right position before installation. Match the rotor to the vehicle’s production date where noted for 1993 BMW 850Ci applications. Inspect pads, caliper condition, and hub mounting surfaces during brake service to help ensure proper rotor seating.

Quality Assurance

Dynamite Friction supplies this rotor as a precision-fit brake component for the listed BMW rear right applications. The part number 631-31030R is built around the stated thickness, diameter, and bolt pattern specifications for accurate replacement service.