Wilwood Pro-Street Hat - Standard 170-1827 5 x 4.50, 5 x 4.75 & 5 x 5.00 Bolt Patterns
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Part Number: WIL1701827
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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.
| Hat Dimensions | |||
| Mount Hole Type | Rotor Bolt Circle (in) | Hat Offset (in) | Center Reg. (in) |
| Thru Hole | 8 x 7.62 | 2 | 3.06 |
| Hat Type | |||
| Material | Mount Style | Finish | Weight (Lbs.) |
| Aluminum | Fixed Mount | Black E-Coat | 2.1 |
| Bolt Circle Dimensions | |||
| Hat Bolt Circle 1 | Hat Bolt Circle 2 | Hat Bolt Circle 3 | |
| 5 x 4.50 | 5 x 4.75 | 5 x 5.00 |