Hat No: 170-10961

Call (805) 388-1188
Parking Brake Hat - Standard
Prod #: 170-10961
Price: $213.68
Parking Brake Hat - Standard 170-10961
Wilwood Parking Brake Hat - Standard Hat Wilwood Parking Brake Hat - Standard Hat Zoom Image

Hat Dimensions
Mount Hole Type Threaded
Rotor Bolt Circle (in) 8 x 7.78
Hat Offset (in) 2.080
Center Reg. (in) 3.42
Hat Type
Material Iron
Mount Style Fixed Mount
Finish Black E-Coat
Weight (lbs) 5.600
Bolt Circle Dimensions
Hat Bolt Circle 1 5 X 4.72
Hat Bolt Circle 2
Hat Bolt Circle 3
UPC Number
UPC 889545041514
Application Info
Application Note Backdraft Cobra Rear
Hat Bolt Kit Part # 230-7011
Application Note
Application Note
Parking Brake Hat - Standard - Product Description

These premium grade cast iron hats make it possible to use bolt-on rotors on vehicles equipped with internal shoe parking brake assemblies. Each hat is a precision machined, threaded hole design for use in conjunction with through-hole mount rotors. After machining, the hats are electro-coated for corrosion resistance.

Rotor Hat Dimensions

Parking Brake Hat - Standard Hat Drawing Parking Brake Hat - Standard Hat Drawing Zoom Image
Additional Hat Dimensions
Rotor Mount Hole Size (in) 1/4-28
Shoe I.D. (in) 6.31
Clearance I.D. (in) 5.87
Face Thickness (in) 0.25
Hat Stud Diamenter - BC 1 (in) 0.550
Hat Stud Diamenter - BC 2 (in)
Hat Stud Diamenter - BC 3 (in)
Additional Notes

Wilwood Compatible Rotors

SRP Drilled Performance Rotor

Rotor Dimensions
Rotor Diameter Range 12.19
Rotor Width Range 0.81

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
Ultralite HP 32 Vane Rotor

Rotor Dimensions
Rotor Diameter Range 12.19
Rotor Width Range 0.81

Ultralite HP 32 Vane Rotor Rotors

Ultra-Light ULHP-32 straight vane rotors provide an excellent balance of efficient cooling and lower rotating mass on hard braking dirt tracks or rear axle service on pavement cars. UL rotors are cast from premium grade, long grain carbon iron for long wear, high thermal stability, and resistance to distortion. ULHP-32 rotors offered the added performance and smoother operation of precision turned faces with less than .001" variation in flatness, parallelism, or run-out. View Ultralite Rotors
Ultralite HPS 32 Vane Rotor

Rotor Dimensions
Rotor Diameter Range 12.19
Rotor Width Range 0.81

Ultralite HPS 32 Vane Rotor Rotors

Ultra-Light ULHP straight vane rotors provide high value performance and rugged durability for a wide range of competition, high performance, and sport driving applications. Don't confuse these rotors with bargain priced off-brand named parts. Wilwood's modern manufacturing capability, combined with large scale economies, make it possible to offer this level of quality and performance at such an affordable price. View Ultralite Rotors

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Wilwood makes every effort to maintain our web site to ensure the accuracy of prices and product information. However, product information and prices are subject to change without notice. Please call (805) 388-1188 before ordering to verify current prices and product information.
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Version: 2.84 September 15, 2021