HomeBrake > Drums and RotorsDynamite Friction 830-54066L Disc Brake Rotor - Rear Left
Part #: 830-54066L

Dynamite Friction 830-54066L Disc Brake Rotor - Rear Left

DFC Geoperformance Rotor - Drilled and Slotted, Rear Left
7 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: Ford, Focus
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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 830-54066L) is engineered for Ford Focus vehicles requiring reliable braking performance. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance heat dissipation and maintain consistent stopping power under various driving conditions.

  • Compatible with Ford Focus models
  • Directional slotted and drilled surface for improved brake cooling
  • Solid rotor design with 271 mm outside diameter
  • Rust resistant coating for extended durability
  • Geospec silver grey hat finish for corrosion protection
  • Nominal thickness of 11 mm with discard thickness at 9 mm
  • Five bolt holes with 13.7 mm diameter and 108 mm bolt circle diameter
  • Center hole diameter of 63.5 mm for precise fitment

Detailed Product Description

The 830-54066L rotor from Dynamite Friction’s DFC Geoperformance Rotor - Drilled and Slotted line is designed specifically for the Ford Focus. This rotor features a solid construction with a 271 mm outside diameter and an overall height of 40.7 mm, ensuring compatibility with factory specifications. The directional slotted and drilled surface helps to reduce brake fade by improving heat dissipation and removing brake dust and gases during braking. The rotor’s plain disc finish combined with a Geospec silver grey hat finish provides corrosion resistance, extending the rotor’s service life. The rust resistant coating further protects the rotor from environmental damage, making it suitable for daily driving and moderate performance applications.

DFC Geoperformance Rotor - Drilled and Slotted Product Line

The DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction focuses on delivering rotors with enhanced thermal management through drilled holes and precision slots. These features are designed to improve braking efficiency and rotor longevity by facilitating better heat dissipation and debris removal. This product line is ideal for drivers seeking a balance between everyday reliability and improved braking performance on their Ford Focus.

Common Applications and Problem Solving

  • Reduces brake fade during extended braking periods
  • Improves heat dissipation to prevent rotor warping
  • Minimizes brake dust buildup for cleaner braking surfaces
  • Protects against rust and corrosion for longer rotor life
  • Maintains consistent braking performance under varied driving conditions

Installation Notes and Tips

Ensure the rotor surface and hub are clean and free of debris before installation. Verify the rotor thickness is within the nominal 11 mm specification and replace if below the discard thickness of 9 mm. Confirm the rotor’s directional orientation matches the vehicle’s rotation direction for optimal performance. Use proper torque specifications on the five 13.7 mm bolt holes to secure the rotor firmly. It is recommended to inspect brake pads and hardware during rotor replacement to maintain overall braking system integrity.

Quality Assurance

Dynamite Friction manufactures the 830-54066L rotor 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 specific warranty details are not provided, Dynamite Friction products are generally backed by quality control processes to ensure reliable performance on Ford Focus vehicles.

BrandDynamite Friction
Part Number830-54066L
PositionDFC Geoperformance Rotor - Drilled and Slotted, Rear Left
Discard Thickness9
Nominal Thickness11
Bolt Hole Diameter13.7
Disc FinishPlain
Hat FinishGeospec silver grey
Rust Resistant CoatingYes
Bolt Hole Quantity5
Overall Height40.7
Outside Diameter271
Height40.7
Surface TypeSlotted x drilled
Solid Or Vented Type RotorSolid
Center Hole Diameter63.5
Stud/Lug Hole Quantity5
Stud/Lug Hole Diameter13.7
Directional or Non-Directional Brake SurfaceDirectional
Bolt Circle Diameter108
Stud/Lug Hole Circle Diameter108

This part fits 7 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2018FordFocusSELRear LeftDFC Geoperformance Rotor - Drilled and Slotted
2017FordFocusSELRear LeftDFC Geoperformance Rotor - Drilled and Slotted
2016FordFocusTitaniumRear LeftDFC Geoperformance Rotor - Drilled and Slotted
2015FordFocusTitaniumRear LeftDFC Geoperformance Rotor - Drilled and Slotted
2014FordFocusSTRear Left335mm Front Disc; DFC Geoperformance Rotor - Drilled and Slotted
2013FordFocusTitaniumRear LeftDFC Geoperformance Rotor - Drilled and Slotted
2012FordFocusRear LeftRear Disc; DFC Geoperformance Rotor - Drilled and Slotted

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