Wilwood Big Brake Hats 1.550in Offset 5 x 4.724 - 12 on 8.75in

SKU: WIL170-13584

Brake Rotor Hats

WIL Rotor Hat...

Wilwood

Wilwood Big Brake Hats 1.550in Offset 5 x 4.724 - 12 on 8.75in

SKU: WIL170-13584

Brake Rotor Hats

WIL Rotor Hat...

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

GT Series Big Brake Flared Bell 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.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.

Part Type

Brake Rotor Hats

Data: v4.2 - Upd: 2026-10-14 20:52:24

Specifications

Product Attributes - Brand: Wilwood Disc Brakes
Product Attributes - Manufacturer's Part Number: 170-13584
Product Attributes - Part Type: Brake Rotor Hats
Product Attributes - Product Line: Wilwood Dynamic Bobbin Mount Hats
Product Attributes - UPC: 889545042245
Product Attributes - Brake Rotor Hat Type: 1/4-20 in. threaded hole
Product Attributes - Brake Rotor Hat Material: Aluminum
Product Attributes - Brake Rotor Hat Color: Black
Product Attributes - Brake Rotor Hat Bolt Circle: 12 x 8.75 in.
Product Attributes - Brake Rotor Hat Offset (in.): 1.55
Product Attributes - Brake Rotor Hat Stud Hole Diameter (in.): 0.52
Product Attributes - Brake Rotor Hat Center Hole I.D. (in.): 3.12
Product Attributes - Brake Rotor Hat Face Thickness (in.): 0.25
Product Attributes - Brake Rotor Hat Clearance I.D. (in.): 6.41
Product Attributes - Quantity: Sold individually.

Reference Information

Brand Name/s	Wilwood
StreetFX SKU	wil170-13584
SFX Item ID	4409503
Supplier Item Code	4409503
Manufacturer SKU	170-13584
Manufacturer UPC	889545042245
Alternative References	1.550in, 8.75in