HomeBrake > Drums and RotorsDynamite Friction 830-80040L Disc Brake Rotor - Rear Left
Part #: 830-80040L

Dynamite Friction 830-80040L Disc Brake Rotor - Rear Left

DFC Geoperformance Rotor - Drilled and Slotted, Rear Left
14 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
DFC Geoperformance Rotor - Drilled and Slotted, Rear Left
Fitment: Mazda, 3 and 3 Sport
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-80040L) is engineered for Mazda 3 and Mazda 3 Sport models. Designed to enhance braking performance, this solid disc brake rotor features a directional, slotted and drilled surface for improved heat dissipation and consistent stopping power.

  • Compatible with Mazda 3 and Mazda 3 Sport
  • Part number: 830-80040L
  • Directional drilled and slotted surface for heat and debris management
  • Solid rotor design with 280 mm outside diameter
  • Rust resistant coating for extended durability
  • Geospec silver grey hat finish for corrosion resistance
  • 5 bolt holes with 114.3 mm bolt circle diameter
  • Nominal thickness of 11 mm and discard thickness of 9 mm

Detailed Product Description

This Dynamite Friction rotor is part of the DFC Geoperformance Rotor - Drilled and Slotted line, which focuses on delivering reliable braking performance through advanced rotor surface technology. The drilled and slotted design helps to reduce brake fade by allowing gases and heat to escape more efficiently during braking. The rotor is solid rather than vented, providing a consistent braking surface with an overall height of 40.9 mm and a center hole diameter of 71.7 mm. The rotor’s hat is finished in Geospec silver grey, which adds a layer of corrosion resistance, complemented by a rust resistant coating on the disc surface. This rotor is designed specifically for Mazda 3 and Mazda 3 Sport vehicles, ensuring proper fitment with its 5 lug holes and 114.3 mm bolt circle diameter.

Applications and Problem Solving

  • Improves braking performance for Mazda 3 and Mazda 3 Sport models
  • Reduces brake fade during aggressive or repeated braking
  • Helps prevent rotor warping caused by excessive heat buildup
  • Minimizes rust and corrosion for longer rotor life
  • Maintains consistent braking feel with directional drilled and slotted surface

Installation Notes and Tips

Ensure the rotor is installed on compatible Mazda 3 or Mazda 3 Sport models using the correct lug pattern and bolt circle diameter. Verify the rotor thickness before installation; replace if below the discard thickness of 9 mm. Clean the rotor surface to remove any protective coatings or debris before mounting. Proper torque specifications should be followed for lug nuts to avoid rotor damage or uneven wear.

Quality Assurance

Dynamite Friction manufactures the DFC Geoperformance Rotor - Drilled and Slotted to meet or exceed OEM standards for fit, form, and function. The rust resistant coating and Geospec silver grey hat finish contribute to the rotor’s durability and corrosion resistance. While no specific warranty information is provided, Dynamite Friction products are generally backed by quality control processes to ensure reliable performance on Mazda 3 and Mazda 3 Sport vehicles.

BrandDynamite Friction
Part Number830-80040L
PositionDFC Geoperformance Rotor - Drilled and Slotted, Rear Left
Discard Thickness9
Nominal Thickness11
Disc FinishPlain
Hat FinishGeospec silver grey
Rust Resistant CoatingYes
Bolt Hole Quantity5
Overall Height40.9
Outside Diameter280
Height40.9
Surface TypeSlotted x drilled
Solid Or Vented Type RotorSolid
Center Hole Diameter71.7
Stud/Lug Hole Quantity5
Stud/Lug Hole Diameter13.7
Directional or Non-Directional Brake SurfaceDirectional
Bolt Circle Diameter114.3
Stud/Lug Hole Circle Diameter114.3

This part fits 14 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2013Mazda32.5LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted
2013Mazda3 Sport2.5LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted
2012Mazda32.5LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted
2012Mazda3 Sport2.5LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted
2011Mazda32.5LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted
2011Mazda3 Sport2.5LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted
2010Mazda32.5LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted
2010Mazda3 Sport2.5LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted
2009Mazda3MazdaspeedRear LeftDFC Geoperformance Rotor - Drilled and Slotted
2008Mazda3MazdaspeedRear LeftDFC Geoperformance Rotor - Drilled and Slotted
2007Mazda3MazdaspeedRear LeftDFC Geoperformance Rotor - Drilled and Slotted
2006Mazda32.3LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted
2005Mazda32.3LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted
2004Mazda32.3LL4Rear LeftDFC Geoperformance Rotor - Drilled and Slotted

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