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Wilwood Brakes B Type Brake Pad D/L, 2PK - 15B-3991K-1 Wilwood Brakes
Availability: Ships Today
Vendor Name: Wilwood Brakes
Line Code: WIL
Part Number: 15B-3991K-1
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Wilwood Brakes B Type Brake Pad D/L, 2PK - 15B-3991K-1

Performance Characteristics

  • Medium-high friction, good cold response
  • Gently rising torque curve, predictable engagemnet
  • Low wear rate at medium temperatures, increasing to moderate at high temperature.
  • Medium-high friction, good cold response

Vehicle Applications

Driving Environment Vehicle Sub-Types Application Duty
Rally   Heavy Duty
Road Race   Heavy Duty
Late Model Asphalt ASA, All Pro, SW Tour, etc... Heavy Duty
Stock Cars NASCAR, BGN, CTS, ARCA, etc... Medium Duty
Late Model Dirt STARS, UMP, IMCA, etc... Heavy Duty
Northeast Modified Dirt or Pavement Heavy Duty
Open Wheel Sprint, Midget, etc… Dirt or Pavement Heavy Duty
Off Road   Heavy Duty



  • Race ONLY compound is a value priced, proven workhorse for most weekly category asphalt late models, sprints, modifieds, and sportsman divisions.
  • Hard braking dirt late models, DIRT modifieds, and rear inboard sprint brakes with vented iron or steel rotors.
  • SCCA club racers, rally, and auto-cross.
  • High MPH drag cars if high end fade occurs with lower temperature pads.




  • Traditional favorite for asphalt LM's, modifieds, and sprints.
  • Modifieds, late models, and other hard braking dirt applications.
  • Intermediate weight road course, auto-cross, rally.
  • Beds easily and fully compatible with all iron and steel.



Pad Dimensions
Thickness(in): Area(in²): Volume(in³): Beded:
.49 6.36 2.1 N
Temperature & Friction Ratings
Peak Temperture Rating: Peak Friction Rating:
1300+ F. 0.62
Dust & Noise Ratings
Dust Production Rating: Pad Noise Rating:

Some parts are not legal for use in California or other states with similar laws / regulations.

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