What makes the Spec-37 iron alloy special?

The Spec-37 iron alloy is a proprietary formulation developed by Wilwood. It's designed to withstand extreme temperatures and resist distortion, warping, cracking, and wear better than standard rotor materials.

What is the benefit of the black e-coat finish?

The black e-coat finish on this GTB rotor provides an added layer of protection against corrosion. This is particularly beneficial for vehicles that are exposed to various weather conditions or road salt.

What is the purpose of the asymmetrical face slot pattern?

The asymmetrical face slot pattern on the rotor helps to sweep away brake dust and gases that can build up between the pad and rotor surface. This ensures better contact and more consistent braking performance, especially under heavy use.

Wilwood GT60 Spec-37 Brake Rotor 16" x 1.5" Black 160-13787-

Name: Wilwood Rotor-GT60 SPC-37-RH-BLK 16.00 x 1.50 - 12 on 9.75in
Brand: Wilwood
SKU: wilwood-wilwood-rotor-gt60-spc-37-rh-blk-16-00-x-1-50-12-on-9-75in-t14-139970
Price: 661.66 USD
Availability: BackOrder

Wilwood Rotor-GT60 SPC-37-RH-BLK 16.00 x 1.50 - 12 on 9.75in

$661.66

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Wilwood GT60 Spec-37 brake rotor. Its proprietary iron alloy resists extreme temperatures and warping for consistent performance.

Key Features

This is a 16.00 inch diameter by 1.50 inch thick brake rotor.
Features Wilwood's GT60 curved vane design for maximum cooling capacity.
Constructed from proprietary Spec-37 iron alloy, offering high resistance to distortion and wear.
Includes a black e-coat finish for improved corrosion resistance.
Asymmetrical face slot pattern helps clear dust and gas for consistent braking.
Dynamically balanced for smooth, vibration-free performance at all speeds.

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Product Details

This is the Wilwood GT60 Spec-37 rotor, a 16-inch by 1.5-inch component designed for serious braking applications. It's built with a proprietary iron alloy that Wilwood developed to handle extreme heat without distorting, warping, or cracking. This material is derived from technology used in military-spec rotors, giving you a solid foundation for your braking system.

The GTB version, like this one, includes an additional black e-coat finish to help fight off corrosion, which is important if your vehicle sees a lot of weather. It features Wilwood's proven GT Series asymmetrical face slot pattern, which helps clear dust and gas away from the braking surface for better contact. Each rotor is also individually dynamically balanced, meaning you'll get smooth, vibration-free performance even when you're pushing your vehicle hard. These rotors are specifically made to offer the highest cooling capacity and longest service life for demanding situations like short track racing or road courses.

When you're building a high-performance braking system, especially for track use, components like these rotors are critical. They are designed to work with other performance brake parts to ensure you have reliable stopping power when you need it most.