HomeBrake > Drums and RotorsDynamite Friction 631-80037R Disc Brake Rotor - Rear Right
Part #: 631-80037R

Dynamite Friction 631-80037R Disc Brake Rotor - Rear Right

DFC Brake Rotor - Drilled and Slotted - Silver, Rear Right
5 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$75.04Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
DFC Brake Rotor - Drilled and Slotted - Silver, Rear Right
Fitment: Mazda, Miata
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of the DFC Brake Rotor for Mazda Miata

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-80037R) is engineered specifically for Mazda Miata models. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

  • Compatible with Mazda Miata vehicles
  • Solid rotor design with drilled and slotted surface
  • Nominal thickness of 10 mm and discard thickness of 8 mm
  • Zinc silver hat finish with rust-resistant coating
  • 4 bolt holes with a 100 mm bolt circle diameter
  • Overall diameter of 275.5 mm and center hole diameter of 55.1 mm
  • Directional brake surface for optimized braking

Details on the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and reduce heat buildup. The silver zinc coating on the rotor hat provides corrosion resistance, extending rotor life. This product line is designed to meet the demands of drivers seeking reliable braking performance with enhanced cooling characteristics.

Technical Specifications and Features

This disc brake rotor is a solid type with a nominal thickness of 10 mm and a discard thickness of 8 mm, ensuring safe replacement intervals. The rotor’s surface is both drilled and slotted, which helps evacuate gases and debris from the braking surface, improving pad contact and reducing brake fade. The rotor hat is finished in zinc silver, providing rust resistance, which is critical for maintaining rotor integrity over time. With 4 bolt holes and a bolt circle diameter of 100 mm, this rotor is designed to fit the Mazda Miata precisely. The overall diameter measures 275.5 mm, and the center hole diameter is 55.1 mm, matching OEM specifications for proper fitment.

Applications and Problem Solving

  • Replacement rotor for worn or warped brake rotors on Mazda Miata
  • Improves heat dissipation to reduce brake fade during spirited driving
  • Helps maintain consistent braking performance under heavy use
  • Addresses rust and corrosion issues with zinc silver coating
  • Enhances braking surface contact with directional drilled and slotted design

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 8 mm before installation. Clean the rotor surface to remove any protective coatings or residues before mounting. Verify bolt hole alignment with the 4-lug pattern and 100 mm bolt circle diameter on the Mazda Miata. Use proper torque specifications for lug nuts to avoid rotor warping. Directional rotors must be installed with the correct rotation direction for optimal performance.

Quality Assurance

Dynamite Friction manufactures the 631-80037R rotor to meet strict quality standards. The rust-resistant zinc silver finish helps extend rotor life. While no specific warranty information is provided, the rotor is designed to meet OEM fit and function requirements for the Mazda Miata.

BrandDynamite Friction
Part Number631-80037R
PositionDFC Brake Rotor - Drilled and Slotted - Silver, Rear Right
Discard Thickness8
Nominal Thickness10
Disc FinishPlain
Hat FinishZinc silver
Rust Resistant CoatingYes
Bolt Hole Quantity4
Overall Height34.4
Outside Diameter275.5
Height34.4
Surface TypeSlotted x drilled
Solid Or Vented Type RotorSolid
Center Hole Diameter55.1
Stud/Lug Hole Quantity4
Stud/Lug Hole Diameter13
Directional or Non-Directional Brake SurfaceDirectional
Bolt Circle Diameter100
Stud/Lug Hole Circle Diameter100

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2005MazdaMiataRear RightDFC Brake Rotor - Drilled and Slotted - Silver
2004MazdaMiataRear RightDFC Brake Rotor - Drilled and Slotted - Silver
2003MazdaMiataRear RightDFC Brake Rotor - Drilled and Slotted - Silver
2002MazdaMiataRear RightSport & Hard Suspensions; DFC Brake Rotor - Drilled and Slotted - Silver
2001MazdaMiataRear RightSport & Hard Suspensions; DFC Brake Rotor - Drilled and Slotted - Silver

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.