HomeBrake > Drums and RotorsDynamite Friction 631-54140L Disc Brake Rotor - Front Left
Part #: 631-54140L

Dynamite Friction 631-54140L Disc Brake Rotor - Front Left

DFC Brake Rotor - Drilled and Slotted - Silver, Front Left
22 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$144.48Free 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, Front Left
Fitment: Ford and Mazda, B2300, B3000, B4000, and Ranger
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 - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54140L) is engineered for reliable braking performance on select Ford and Mazda trucks. Designed specifically for models like the Ford Ranger and Mazda B-series trucks, this vented disc brake rotor offers enhanced heat dissipation and improved stopping power.

  • Compatible with Ford Ranger, Mazda B2300, B3000, and B4000 models
  • Directional drilled and slotted surface for efficient heat and gas dissipation
  • Vented rotor design to reduce brake fade under heavy use
  • Rust-resistant zinc silver hat finish for extended durability
  • Nominal thickness of 26 mm with a discard thickness of 24.5 mm
  • 5 bolt holes with 1/2-20 diameter and 114.3 mm bolt circle diameter
  • Overall diameter of 286 mm and height of 57.7 mm

Product Line Details: DFC Brake Rotor - Drilled and Slotted - Silver

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots on the braking surface. This design helps maintain consistent braking performance by allowing gases and debris to escape, reducing the risk of brake fade. The silver zinc coating on the rotor hat provides corrosion resistance, which is beneficial for vehicles exposed to varying weather conditions. This rotor line is tailored for drivers who require dependable braking components for their Ford and Mazda trucks.

Technical Specifications and Features

This disc brake rotor features a vented design that improves airflow to dissipate heat more effectively during braking. The directional drilled and slotted surface enhances pad bite and helps maintain clean contact between the rotor and brake pads. The rotor measures 286 mm in outside diameter with a height of 57.7 mm, fitting securely on vehicles with a 5-lug bolt pattern and a 114.3 mm bolt circle diameter. The zinc silver finish on the rotor hat offers rust resistance, extending the rotor's service life. The nominal thickness is 26 mm, with a discard thickness of 24.5 mm, ensuring safe replacement intervals.

Applications and Problem Solving

  • Reduces brake fade during heavy braking or towing
  • Improves heat dissipation for consistent braking performance
  • Minimizes rust and corrosion on the rotor hat for longer durability
  • Helps maintain clean braking surfaces by venting gases and debris
  • Compatible with Ford Ranger and Mazda B2300, B3000, B4000 trucks requiring vented, drilled, and slotted rotors

Installation Notes and Tips

Ensure the rotor is installed on vehicles with a 5-lug bolt pattern and a 114.3 mm bolt circle diameter. Verify the rotor thickness before installation; replace if below the discard thickness of 24.5 mm. Properly torque lug nuts to manufacturer specifications to avoid rotor warping. It is recommended to inspect brake pads and hardware during rotor replacement for optimal braking system performance.

Quality Assurance

Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit and function. The rust-resistant zinc silver coating on the rotor hat helps protect against corrosion. While no specific warranty information is provided, adherence to discard thickness and proper installation ensures reliable and safe braking performance for Ford Ranger and Mazda B-series trucks.

BrandDynamite Friction
Part Number631-54140L
PositionDFC Brake Rotor - Drilled and Slotted - Silver, Front Left
Discard Thickness24.5
Nominal Thickness26
Bolt Hole Diameter1/2-20
Disc FinishPlain
Hat FinishZinc silver
Rust Resistant CoatingYes
Bolt Hole Quantity5
Overall Height57.7
Outside Diameter286
Height57.7
Surface TypeSlotted x drilled
Solid Or Vented Type RotorVented
Stud/Lug Hole Quantity5
Directional or Non-Directional Brake SurfaceDirectional
Bolt Circle Diameter114.3
Stud/Lug Hole Circle Diameter114.3

This part fits 22 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
1997FordRanger4WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1997FordRanger4WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1997MazdaB30004WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1997MazdaB30004WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1997MazdaB40004WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1997MazdaB40004WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1996FordRanger4WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1996FordRanger4WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1996MazdaB23004WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1996MazdaB23004WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1996MazdaB30004WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1996MazdaB30004WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1996MazdaB40004WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1996MazdaB40004WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1995FordRanger4WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1995FordRanger4WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1995MazdaB23004WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1995MazdaB23004WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1995MazdaB30004WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver
1995MazdaB30004WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1995MazdaB40004WDFront LeftRear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver
1995MazdaB40004WDFront Left9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver

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