Wednesday, April 25, 2018
Brake Pad Part No: 15A-5740K-B

Brake Pad Guide Brake Pads Chart

Brake Pads
High-Temperature Racing Pads

Pad#:   9725
Compound:   PolyMatrix A
Wilwood Brake Pad Plate #9725

Wilwood Brake Pad Plate #9725
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Product Number: 15A-5740K-B     Price: $396.50
Pad Dimensions
Thickness(in): Area(in²): Volume(in³): Beded:
.98 10.3 8 Y
Temperature & Friction Ratings
Peak Temperture Rating: Peak Friction Rating:
1300+ F. 0.68
Dust & Noise Ratings
Dust Production Rating: Pad Noise Rating:

Performance Characteristics
  • Ultimate high friction pad with aggressive initial response
  • Immediate low tempeature response.
  • Low wear rate
  • Ultimate high friction pad with aggressive initial response

Vehicle Applications
Driving EnvironmentVehicle Sub-TypesApplication 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... Heavy Duty
Late Model Dirt STARS, UMP, IMCA, etc...Heavy Duty
Northeast Modified Dirt or PavementHeavy Duty
Open Wheel Sprint, Midget, etc… Dirt or PavementHeavy Duty
Off Road Heavy Duty

Pad Illustration and Dimensions
Wilwood Brake Pad Plate #9725 Large Drawing

Wilwood Brake Pad Plate #9725 Large Drawing

Compound Characteristics
PolyMatrix A

PolyMatrix A

Compound Data Sheet

  • Race ONLY compound used in ARCA, ASA, ALMS, Grand-AM, NASCAR, REMAX, SCCA, USAC, and other severe duty oval, road course, and off-road series that require an aggressive response and durability in the highest temperature ranges.
  • Lightweight sprints and club sport racers using steel plate rotors that require fast response at low temperatures with resistance to fade during periodic or temporary high temperature spikes.

  • Immediate cold response with highest friction values at all temperatures.
  • Severe duty use on oval tracks, road courses, and other applications that require immediate high torque response.
  • Long wear rate for sustained high heat braking.
  • Compatible with all iron and steel rotors.
Compound Temperature Range & Torque Values
Temperature range and overall friction value are the primary considerations for pad selection. The pads must be capable of maintaining the proper amount of friction for stopping power within the temperatures that will be realized on the track during the event. Then, overall wear rate must be considered. For most asphalt and road race applications, compounds in the high temperature ranges over 1000°F range are usually necessary. Dirt track, drag race, and street performance applications usually operate at temperatures between 500° and 1000°F. Keep in mind that these are general ranges, and not absolute values. Many factors and unforeseen influences can affect brake temperatures. The best indicator for pad selection will always be on track performance. If pad fade (friction loss) due to overheating occurs, then improved cooling, a heavier rotor, or a higher temperature range pad may all become necessary.

Wilwood Compatible Calipers: Pad # 9725
Integra 6R Radial Mount
Wilwood Integra 6R Radial Mount Caliper

Wilwood Integra 6R Radial Mount Caliper

Integra 6R Radial Mount Caliper

Wilwood’s six piston Integra 6R caliper utilizes sophisticated Finite Element Analysis, Stress Simulation and Heat Management programs to provide a powerhouse of stopping performance weighing just 5.50 pounds. The Integra 6R caliper employs our proven exclusive piston stagger pattern resulting in unmatched caliper rigidity and balanced pad load characteristics; brake pad distortion and taper is virtually eliminated. The fully heat shielded design provides phenomenal heat protection for a consistent, responsive pedal throughout the longest races. View Integra Calipers
Caliper Dimensions
Piston Count: Piston Area Range (in²): Pad Area Range (in²):
6 4.52 10.3
Pad Volume Range (in³): Max Rotor Widths (in): Max Rotor Diameters (in):
8 1.38 12.88