Wilwood Hat-BB Front.875in Offset 4 x 3.93 - 12 on 8.75in

SKU: WIL170-13063

Brake Rotor Hats

WIL Rotor Hat...

Wilwood

Wilwood Hat-BB Front.875in Offset 4 x 3.93 - 12 on 8.75in

SKU: WIL170-13063

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 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.

Part Type

Brake Rotor Hats

Data: v4.2 - Upd: 2026-10-15 20:10:44

Specifications

Product Attributes - UPC: 889545042108
Product Attributes - Brand: Wilwood Disc Brakes
Product Attributes - Quantity: Sold individually.
Product Attributes - Part Type: Brake Rotor Hats
Product Attributes - Product Line: Wilwood GT Series Big Brake Hats
Product Attributes - Brake Rotor Hat Type: 1/4-20 in. threaded hole
Product Attributes - Brake Rotor Hat Color: Black
Product Attributes - Brake Rotor Hat Material: Aluminum
Product Attributes - Manufacturer's Part Number: 170-13063
Product Attributes - Brake Rotor Hat Bolt Circle: 12 x 8.75 in.
Product Attributes - Brake Rotor Hat Offset (in.): 0.88
Product Attributes - Brake Rotor Hat Clearance I.D. (in.): 7.25
Product Attributes - Brake Rotor Hat Face Thickness (in.): 0.30
Product Attributes - Brake Rotor Hat Center Hole I.D. (in.): 3.06
Product Attributes - Brake Rotor Hat Stud Hole Diameter (in.): 0.64

Reference Information

Brand Name/s	Wilwood
StreetFX SKU	wil170-13063
SFX Item ID	4406588
Supplier Item Code	4406588
Manufacturer SKU	170-13063
Manufacturer UPC	889545042108
Alternative References	Front.875in, 8.75in

Compatibility

Application Data

Number of Lugs 4
Bolt Pattern 3.930 in.
Application Notes Short offset brake rotor hat. 3.06 in. diameter register with counterbore for register ring.

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