HomeBrake > Drums and RotorsDynamite Friction 631-54006L Disc Brake Rotor - Front Left
Part #: 631-54006L

Dynamite Friction 631-54006L Disc Brake Rotor - Front Left

DFC Brake Rotor - Drilled and Slotted - Silver, Front Left
25 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
DFC Brake Rotor - Drilled and Slotted - Silver, Front Left
Fitment: Ford and Mercury, Cougar, Montego, and Mustang
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Reliable Performance for Ford and Mercury Vehicles

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54006L) is engineered to provide consistent braking performance for select Ford and Mercury models. Designed specifically for vehicles like the Mustang, Cougar, and Montego, this rotor offers enhanced heat dissipation and improved stopping power.

  • Disc type: Vented disc brake rotor
  • Surface finish: Directional drilled and slotted design
  • Rust resistant zinc silver hat finish
  • Nominal thickness: 23.86 mm with discard thickness at 22.23 mm
  • Five 1/2-20 bolt holes with 114.3 mm bolt circle diameter
  • Outside diameter: 287 mm; overall height: 108.5 mm
  • Center hole diameter: 61.7 mm

About the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and reduce heat buildup. This directional rotor design helps channel gases and debris away from the braking surface, which is particularly beneficial for performance-oriented vehicles such as the Ford Mustang and Mercury Cougar. The zinc silver coating on the rotor hat enhances corrosion resistance, extending the rotor's service life.

Technical Details and Specifications

This vented rotor features a nominal thickness of 23.86 mm and a discard thickness of 22.23 mm, ensuring it meets safety standards for wear limits. The rotor's 287 mm outside diameter and 108.5 mm overall height are designed to match the factory specifications for compatible Ford and Mercury models. The drilled and slotted surface improves heat dissipation and braking efficiency, while the directional pattern optimizes performance under various driving conditions. The rotor includes five bolt holes sized 1/2-20 with a bolt circle diameter of 114.3 mm, ensuring proper fitment and secure mounting.

Applications and Problem Solving

  • Compatible with Ford Mustang, Mercury Cougar, and Mercury Montego models
  • Helps reduce brake fade during aggressive driving or towing
  • Improves heat dissipation to prevent rotor warping
  • Enhances braking response and pad bite with drilled and slotted design
  • Resists rust and corrosion for longer service life

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 22.23 mm before installation. Clean the rotor surface to remove any protective coatings or debris prior to mounting. Verify bolt hole alignment with the vehicle’s hub using the 114.3 mm bolt circle diameter and 1/2-20 bolt hole size. Proper torque specifications should be followed to avoid rotor warping or uneven wear.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant zinc silver finish on the rotor hat helps maintain durability in various environmental conditions. While specific warranty details are not provided, Dynamite Friction products typically undergo rigorous quality control to ensure reliable braking performance for Ford and Mercury vehicles.

BrandDynamite Friction
Part Number631-54006L
PositionDFC Brake Rotor - Drilled and Slotted - Silver, Front Left
Discard Thickness22.23
Nominal Thickness23.86
Bolt Hole Diameter1/2-20
Disc FinishPlain
Hat FinishZinc silver
Rust Resistant CoatingYes
Bolt Hole Quantity5
Overall Height108.5
Outside Diameter287
Height108.5
Surface TypeSlotted x drilled
Solid Or Vented Type RotorVented
Center Hole Diameter61.7
Stud/Lug Hole Quantity5
Directional or Non-Directional Brake SurfaceDirectional
Bolt Circle Diameter114.3
Stud/Lug Hole Circle Diameter114.3

This part fits 25 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
1969FordMustang4.1LL6Front LeftDFC Brake Rotor - Drilled and Slotted - Silver
1969FordMustang5.8LV8Front LeftDFC Brake Rotor - Drilled and Slotted - Silver
1969FordMustangFront LeftDFC Brake Rotor - Drilled and Slotted - Silver
1969FordMustang6.4LV8Front LeftDFC Brake Rotor - Drilled and Slotted - Silver
1969FordMustang5.0LV8Front LeftDFC Brake Rotor - Drilled and Slotted - Silver
1969MercuryCougarFront LeftDFC Brake Rotor - Drilled and Slotted - Silver
1968FordMustang4.7LV8Front LeftDFC Brake Rotor - Drilled and Slotted - Silver
1968FordMustang3.3LL6Front LeftDFC Brake Rotor - Drilled and Slotted - Silver
1968FordMustang7.0LV8Front LeftDFC Brake Rotor - Drilled and Slotted - Silver
1968FordMustang6.4LV8Front LeftDFC Brake Rotor - Drilled and Slotted - Silver
1968FordMustang5.0LV8Front LeftDFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryCougarFront LeftDFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontegoConvertible3.3LL6Front LeftComposite Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontegoWagon5.0LV8Front LeftFull Cast Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontego6.4LV8Front LeftExc. Wagon; Full Cast Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontego7.0LV8Front LeftExc. Wagon; Full Cast Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontegoConvertible3.3LL6Front LeftFull Cast Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontegoHardtopFront LeftDFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontego7.0LV8Front LeftExc. Wagon; Composite Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontegoWagonFront LeftComposite Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontegoWagon5.0LV8Front LeftComposite Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontegoSedanFront LeftDFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontegoWagon6.4LV8Front LeftDFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontego6.4LV8Front LeftExc. Wagon; Composite Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1968MercuryMontegoWagonFront LeftFull Cast Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver

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