FREE SHIPPING & HANDLING!*                           Order by 11 PM EST for Same Day Shipping!

Wilwood Rotor Hats


Wilwood
Wilwood Rotor Hats

Product images may differ from actual product appearance.

Big Brake Hats: Wilwood's 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.
  • Flared Bell Hats are generally used with rotor mount bolt circles of 8.38" and larger. Offsets range from 1.88" to 3.00" for rotor diameters 12.19" and up.

    Drag Hats: Wilwood's HD Series Fixed Mount Rotor Hats have a long standing reputation for fit, performance, and durability. HD Series hats are manufactured from premium grade aluminum alloys offering high strength, low weight, and show quality appeal. HD hats have not only been a mainstay in many of Wilwood's racing disc brake conversion kits, but they can cover a range of applications from an OE four lug axle shaft to a Grand-National stock car racing hub. HD hats feature a straight bell construction with a flanged rotor mount ring, Threaded-hole mounts for use with through hole rotors. When used with matching Wilwood rotor hardware, these hats provide solid mounting for a wide range of custom and competition disc brake applications. These features combine to provide maximum radial clearance between the caliper body and the hat. This can be a critical factor when trying to squeeze a large caliper inside a small wheel. Many hats offer multi-lug wheel patterns for added versatility. Some hats can be ordered blank for custom axle building and other unique applications.

    GT Series Dynamic Mount Rotor Hats are engineered to withstand the rigors and demands of extreme motorsports competition. Each hat is precision machined from premium grade aluminum offering high strength with low unsprung and rotating weight. Wilwood T-nuts float within the hat and provide true dynamic mounting of a standard through-hole mount rotor. The wide load bearing load surface of the T-nut and the straight through-hole mount rotors provide the most durable and accurate method of isolating potential pad engagement harmonics and the in-service thermal variations that occur between the hat and the rotor. GT Series Dynamic Mount Hats are available in a variety of configurations for use with racing hubs, flanged axles, and several OE applications. Straight bell hats are used for the 6.75" and 7.00" rotor mount patterns. Hats for the larger diameter rotor mount patterns will be the flared bell design.

    Pro-Street Hats: Wilwood's Pro Street Series Fixed Mount Rotor Hats have a long standing reputation for fit, performance, and durability. HD Series hats are manufactured from premium grade aluminum alloys offering high strength, low weight, and show quality appeal. HD hats have not only been a mainstay in many of Wilwood's racing disc brake conversion kits, but they can cover a range of applications from an OE four lug axle shaft to a Grand-National stock car racing hub. Pro Street hats feature a straight bell construction with a flanged rotor mount ring, with through holes for use with threaded-hole, 8 x 7.62'' mount rotors. These features combine to provide maximum radial clearance between the caliper body and the hat. This can be a critical factor when trying to squeeze a large caliper inside a small wheel. Many hats offer multi-lug wheel patterns for added versatility.

    Truck Hats: Wilwood's Truck 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. Truck Hats feature strengthening ribs on a flared bell configuration for big rotor brake kits on truck, SUV, and 4WD axles with either 5, 6 or 8 lug configurations.

    Truck Parking Brake Hats: These premium grade cast iron hats make it possible to use bolt-on rotors on vehicles equipped with OEM 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. Used for big rotor brake kits on truck, SUV, and 4WD axles with either 5, 6 or 8 lug configurations.



  • 25 Products
    Big Brake Hats

    950-170-6947
    Big Brake - Short Offset Hat
  • Hat Offset: 0.73''
  • Rotor Bolt Circle: 8 x 7.00''
  • Wheel Stud Circle(s): 5 x 4.50''
    View this item

    Fits Applications
    • FREE
    • SHIPPING
      & HANDLING!
  • $124.93
    Order Today Ships 04/28/14

    950-170-8269
    Big Brake - Short Offset Hat
  • Hat Offset: 0.41''
  • Rotor Bolt Circle: 8 x 7.00''
  • Wheel Stud Circle(s): 5 x 3.93''
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
  • $124.93
    Order Today Ships 04/28/14

    950-170-8405
    Big Brake - Short Offset Hat
  • Hat Offset: 1.16''
  • Rotor Bolt Circle: 8 x 7.00''
  • Wheel Stud Circle(s): 4 x 3.93''
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
  • $131.88
    Order Today Ships 04/28/14

    950-170-8589
    Big Brake - Short Offset Hat
  • Hat Offset: 1.05''
  • Rotor Bolt Circle: 8 x 7.00''
  • Wheel Stud Circle(s): 5 x 4.50''
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
  • $131.88
    Order Today Ships 04/28/14

    950-170-6990
    Big Brake - Flare Bell Hat
  • Hat Offset: 1.10''
  • Rotor Bolt Circle: 12 x 8.75''
  • Wheel Stud Circle(s): 5 x 3.93''
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
  • $157.95
    Order Today Ships 04/28/14
    Drag Hats

    950-170-0259
    Drag Hat - Standard
  • Hat Offset: 1.71''
  • Rotor Bolt Circle: 8 x 7.00''
  • Wheel Stud Circle(s): 5 x 4.50/4.75/5.00''
    More info on Wilwood 170-0259
    • FREE
    • SHIPPING
      & HANDLING!
  • $87.45
    Ships

    950-170-0995
    Drag Hat - Spindle Mount
  • Hat Offset: 1.00''
  • Rotor Bolt Circle: 5 x 5.00''
  • Wheel Stud Circle(s): 5 x 4.75''
    More info on Wilwood 170-0995
    • FREE
    • SHIPPING
      & HANDLING!
  • $102.72
    Order Today Ships 04/28/14

    950-170-10543
    Drag Hat - Shallow Offset
  • Hat Offset: 1.16''
  • Rotor Bolt Circle: 8 x 7.00''
  • Wheel Stud Circle(s): 5 x 4.50"/5 x 4.75''
    More info on Wilwood 170-10543
    • FREE
    • SHIPPING
      & HANDLING!
  • $131.88
    Order Today Ships 04/28/14

    950-170-11902
    Drag Hat - Shallow Offset
  • Hat Offset: 0.60''
  • Rotor Bolt Circle: 8 x 7.00''
  • Wheel Stud Circle(s): 4 x 4.25''
    More info on Wilwood 170-11902
    • FREE
    • SHIPPING
      & HANDLING!
  • $151.63
    Order Today Ships 04/28/14

    950-170-8643
    Drag Hat - Shallow Offset
  • Hat Offset: 0.66''
  • Rotor Bolt Circle: 6 x 6.25''
  • Wheel Stud Circle(s): 4 x 3.93''
    More info on Wilwood 170-8643
    • FREE
    • SHIPPING
      & HANDLING!
  • $87.45
    Order Today Ships 04/28/14

    950-171-2234
    Drag Hat
  • Hat Offset: 1.41''
  • Rotor Bolt Circle: 8 x 7.00''
  • Wheel Stud Circle(s): Undrilled
    More info on Wilwood 171-2234
    • FREE
    • SHIPPING
      & HANDLING!
  • $99.95
    Order Today Ships 04/28/14

    950-171-3753
    Drag Hat - Standard
  • Hat Offset: 1.96''
  • Rotor Bolt Circle: 8 x 7.00''
  • Wheel Stud Circle(s): Solid
    More info on Wilwood 171-3753
    • FREE
    • SHIPPING
      & HANDLING!
  • $99.95
    Order Today Ships 04/28/14
    GT Series Dynamic Mount Rotor Hats

    950-170-6581
    GT Series Dynamic Mount Rotor Hat
  • Hat Offset: 2.12''
  • Rotor Bolt Circle: 8 x 7.00''
  • Wheel Stud Circle(s): 5 x 5.00''
    More info on Wilwood 170-6581
    • FREE
    • SHIPPING
      & HANDLING!
  • $217.95
    Order Today Ships 04/28/14
    Pro-Street Hats

    950-170-0176
    Pro-Street Hat
  • Hat Offset: 1.50''
  • Rotor Bolt Circle: 8 x 7.62''
  • Wheel Stud Circle(s): 5 x 4.75''
  • Unplated Finish
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
  • $124.93
    Order Today Ships 04/28/14

    950-170-0636
    Pro-Street Hat
  • Hat Offset: 2.10''
  • Rotor Bolt Circle: 8 x 7.62''
  • Wheel Stud Circle(s): 5 x 4.50''
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
  • $124.93
    Order Today Ships 04/28/14

    950-170-1827
    Pro-Street Hat
  • Hat Offset: 2.00''
  • Rotor Bolt Circle: 8 x 7.62''
  • Wheel Stud Circle(s): 5 x 4.50''/4.75''/5.00''
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
  • $87.45
    Ships

    950-170-3265
    Pro-Street Hat
  • Hat Offset: 1.25''
  • Rotor Bolt Circle: 8 x 7.62''
  • Wheel Stud Circle(s): 5 x 4.50''
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
  • $115.95
    Order Today Ships 04/28/14

    950-171-2233
    Pro-Street Hat
  • Hat Offset: 2.00''
  • Rotor Bolt Circle: 8 x 7.62''
  • Wheel Stud Circle(s): Solid
    View this item
    • FREE
    • SHIPPING
      & HANDLING!
  • $99.95
    Order Today Ships 04/28/14
    Truck Hats

    950-170-11729
    Truck Hat - Standard
  • Hat Offset: 0.81''
  • Rotor Bolt Circle: 12 x 10.75''
  • Wheel Stud Circle(s): 5 x 4.72''
    More info on Wilwood 170-11729
    • FREE
    • SHIPPING
      & HANDLING!
  • $295.00
    Order Today Ships 04/28/14

    950-170-8878
    Truck Hat - Standard
  • Hat Offset: 1.55''
  • Rotor Bolt Circle: 12 x 10.75''
  • Wheel Stud Circle(s): 8 x 6.50''
    More info on Wilwood 170-8878
    • FREE
    • SHIPPING
      & HANDLING!
  • $295.00
    Order Today Ships 04/28/14

    950-170-8960
    Truck Hat - Standard
  • Hat Offset: 0.81''
  • Rotor Bolt Circle: 12 x 10.75''
  • Wheel Stud Circle(s): 6 x 5.5''
    More info on Wilwood 170-8960
    • FREE
    • SHIPPING
      & HANDLING!
  • $295.00
    Order Today Ships 04/28/14

    950-170-9066
    Truck Hat - Standard
  • Hat Offset: 1.11''
  • Rotor Bolt Circle: 12 x 10.75''
  • Wheel Stud Circle(s): 6 x 5.32''
    More info on Wilwood 170-9066
    • FREE
    • SHIPPING
      & HANDLING!
  • $295.00
    Order Today Ships 04/28/14
    Truck Parking Brake Hats

    950-170-11730
    Truck Parking Brake Hat
  • Hat Offset: 1.50''
  • Rotor Bolt Circle: 12 x 10.75''
  • Wheel Stud Circle(s): 5 x 4.72''
    More info on Wilwood 170-11730
    • FREE
    • SHIPPING
      & HANDLING!
  • $295.00
    Order Today Ships 04/28/14

    950-170-9607
    Truck Parking Brake Hat
  • Hat Offset: 1.91''
  • Rotor Bolt Circle: 12 x 10.75''
  • Wheel Stud Circle(s): 8 x 6.50''
    More info on Wilwood 170-9607
    • FREE
    • SHIPPING
      & HANDLING!
  • $295.00
    Order Today Ships 04/28/14

    950-170-9608
    Truck Parking Brake Hat
  • Hat Offset: 1.78''
  • Rotor Bolt Circle: 12 x 10.75''
  • Wheel Stud Circle(s): 8 x 6.50''
    More info on Wilwood 170-9608
    • FREE
    • SHIPPING
      & HANDLING!
  • $295.00
    Order Today Ships 04/28/14

    25 Products