Hat No: 170-13067


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Big Brake Hat - Short Offset
Prod #: 170-13067
Price: $242.49
Big Brake Hat - Short Offset 170-13067

Hat Dimensions
Mount Hole Type Threaded
Rotor Bolt Circle (in) 12 x 7.00
Hat Offset (in) 0.490
Center Reg. (in) 2.80
Hat Type
Material Aluminum
Mount Style Fixed Mount
Finish Black E-Coat
Weight (lbs) 1.570
Bolt Circle Dimensions
Hat Bolt Circle 1 5 x 4.50
Hat Bolt Circle 2
Hat Bolt Circle 3
UPC Number
UPC 889545042122
Application Info
Application Note
Hat Bolt Kit Part # 230-8008
Application Note
Application Note
Big Brake Hat - Short Offset - Product Description

GT Series Big Brake Short Offset hats are precision machined from premium aluminum alloys for high strength and attention to minimized weight. Hats in this category feature threaded rotor mount holes for use with standard through-hole mount rotors. Threaded hole hats may also be used with T-Nuts or bobbins designed for use with specially machined slotted hole dynamic mount rotors. When used in conjunction with matched Wilwood rotor hardware kits, GT hats provide solid, reliable performance in the most demanding conditions. Short Offset Hats are for narrow space applications with offsets often less than 1.00". They are available for most rotor bolt patterns in a variety of four and five lug wheel patterns.


Shallow Offset Hats are for narrow space applications with offsets often less than 1.00". They are available for most rotor bolt patterns in a variety of four and five lug wheel patterns.




Rotor Hat Dimensions

Big Brake Hat - Short Offset Hat Drawing Big Brake Hat - Short Offset Hat Drawing Zoom Image
Additional Hat Dimensions
Rotor Mount Hole Size (in) 1/4-20
Shoe I.D. (in)
Clearance I.D. (in) 6.16
Face Thickness (in) 0.25
Hat Stud Diamenter - BC 1 (in) 0.590
Hat Stud Diamenter - BC 2 (in)
Hat Stud Diamenter - BC 3 (in)
Additional Notes

Wilwood Compatible Rotors

GT 48 Curved Vane Rotor


Rotor Dimensions
Rotor Diameter Range 13.00
Rotor Width Range 1.10

GT 48 Curved Vane Rotor Rotors

GT-48 curved vane rotors are built for the extreme conditions of professional motorsports. The superior heat absorption and dissipation characteristics of these heavy wall directional vane rotors are the keys to preventing heat fade and realizing long service life from the rotors and pads. All rotors are cast from premium grade, long grain carbon iron for long wear, thermal stability, and resistance to distortion. Every GT rotor is fully detail machined to eliminate stress points and unnecessary weight away from the pad sweep face. The faces and O.D. are precision turned to less than .001" for flatness, parallelism, and run-out. An asymmetrical face slot pattern provides smoother engagement through reduced harmonics and improved thermal balance between the I.D. and O.D. of the rotor. Every rotor is then individually dynamic balanced to provide vibration free performance at any speed. These rotors provide the highest cooling capacity and longest service life for extreme braking short tracks and road course competition. View GT Rotors
GT 48 Curved Vane Rotor


Rotor Dimensions
Rotor Diameter Range 13.00
Rotor Width Range 1.10

GT 48 Curved Vane Rotor Rotors

Wilwood's GT 48 Curved Vane Spec-37 rotors are manufactured from a proprietary iron alloy developed to withstand extreme temperatures with the highest possible degree of resistance against distortion, warping, cracking, and wear. The formulation for this alloy is a derivative of technology and materials that were significant in the development of the extreme duty military spec rotors that are manufactured by Wilwood. Combined with our proven GT Series asymmetrical face slot pattern and individual dynamic balancing, you are assured the smoothest, vibration free performance at any speed. These rotors provide the highest cooling capacity and longest service life for extreme braking short tracks and road course competition. View GT Rotors
GT 48 Curved Vane Rotor


Rotor Dimensions
Rotor Diameter Range 12.60
Rotor Width Range 1.25

GT 48 Curved Vane Rotor Rotors

Wilwood's GT 48 Curved Vane Spec-37 rotors are manufactured from a proprietary iron alloy developed to withstand extreme temperatures with the highest possible degree of resistance against distortion, warping, cracking, and wear. The formulation for this alloy is a derivative of technology and materials that were significant in the development of the extreme duty military spec rotors that are manufactured by Wilwood. Combined with our proven GT Series asymmetrical face slot pattern and individual dynamic balancing, you are assured the smoothest, vibration free performance at any speed. These rotors provide the highest cooling capacity and longest service life for extreme braking short tracks and road course competition. View GT Rotors
GT 48 Curved Vane Rotor


Rotor Dimensions
Rotor Diameter Range 12.88
Rotor Width Range 1.38

GT 48 Curved Vane Rotor Rotors

Wilwood's GT 48 Curved Vane Spec-37 rotors are manufactured from a proprietary iron alloy developed to withstand extreme temperatures with the highest possible degree of resistance against distortion, warping, cracking, and wear. The formulation for this alloy is a derivative of technology and materials that were significant in the development of the extreme duty military spec rotors that are manufactured by Wilwood. Combined with our proven GT Series asymmetrical face slot pattern and individual dynamic balancing, you are assured the smoothest, vibration free performance at any speed. These rotors provide the highest cooling capacity and longest service life for extreme braking short tracks and road course competition. View GT Rotors
SRP Drilled Performance Rotor


Rotor Dimensions
Rotor Diameter Range 12.44 13.00
Rotor Width Range 1.10 1.19

SRP Drilled Performance Rotor Rotors

SRP Drilled Performance Rotors feature a specially engineered directional cross drill and face slot pattern that improve brake response and pad performance throughout the entire range of light to heavy braking. The venting and cleaning action of the holes and slots will reduce pad glaze and disperse gasses and heat generated during the pad to rotor interface. The holes and slots also inhibit irregular pad compound build-up on the rotor faces resulting in smoother engagement and improved pedal response in all conditions. The material removed also contributes to lower rotating and unsprung suspension weight. View SRP Rotors

 
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Version: 3.05 June 23, 2023