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 offers a high degree of resistance against common rotor issues like distortion, warping, and cracking.

How does the GT Series slot pattern help?

The asymmetrical face slot pattern on these rotors helps to clear away brake dust and gases. This ensures consistent contact between the brake pads and the rotor surface, leading to more reliable and effective braking performance.

Are these rotors suitable for daily driving?

While these rotors are built for extreme conditions like short track and road course competition, their advanced design and balancing also contribute to a smooth driving experience. However, they are optimized for high-performance use where heat resistance and durability are paramount.

Wilwood GT 48 Curved Vane Rotor 1291-126BJ633-000TJCXXXXL

Name: Wilwood Rotor 1291-126BJ633-000TJCXXXXL
Brand: Wilwood
SKU: wilwood-wilwood-rotor-1291-126bj633-000tjcxxxxl-t14-581963
Price: 352.85 USD
Availability: BackOrder

Wilwood Rotor 1291-126BJ633-000TJCXXXXL

$352.85

On Backorder

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

Wilwood GT 48 Curved Vane rotor. Built with a proprietary iron alloy to resist warping and cracking under extreme heat.

Key Features

Fits Wilwood GT 48 Curved Vane Rotor 1291-126BJ633-000TJCXXXXL.
Manufactured from a proprietary iron alloy for extreme temperature resistance.
Designed to resist distortion, warping, cracking, and wear under high heat.
Features Wilwood's GT Series asymmetrical face slot pattern for improved performance.
Each rotor is individually dynamically balanced for smooth, vibration-free operation.
Offers high cooling capacity and extended service life for demanding use.

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Product Details

When you're pushing your vehicle hard on the track, especially for short track or road course competition, the demands on your braking system are intense. That's where Wilwood's GT 48 Curved Vane Spec-37 rotors come in. These aren't your average rotors; they're crafted from a special iron alloy that Wilwood developed specifically to handle extreme temperatures without distorting, warping, cracking, or wearing out prematurely. This alloy is based on technology used in military-spec rotors, giving you a solid foundation for your braking performance.

What sets these rotors apart is their construction and design. The GT Series asymmetrical face slot pattern helps clear dust and gas, ensuring consistent contact between the pad and rotor. Each rotor is also individually dynamically balanced, which means you get a smooth, vibration-free feel at any speed, no matter how hard you're braking. This combination of advanced materials and thoughtful design results in the highest cooling capacity and longest service life for serious performance driving.