What makes the Spec-37 iron alloy special?

The Spec-37 iron alloy is a proprietary blend developed by Wilwood. It's formulated to withstand extreme temperatures and offers high resistance against common rotor issues like distortion, warping, and cracking.

Does this rotor come with hardware?

This product listing is for the rotor only. Hardware such as lug nuts or brake pads are typically sold separately.

What is the benefit of curved vanes?

Curved vanes help to channel air through the rotor as it spins. This airflow assists in dissipating heat, which is crucial for maintaining consistent brake performance under heavy use.

Wilwood HD 48 Curved Vane Rotor 13.06" x 1.25" 160-12787

Name: Wilwood Rotor-HD48 SPC-37-LH 13.06 x 1.25 - 12 on 8.75in
Brand: Wilwood
SKU: wilwood-wilwood-rotor-hd48-spc-37-lh-13-06-x-1-25-12-on-8-75in-t14-140148
Price: 321.99 USD
Availability: BackOrder

Wilwood Rotor-HD48 SPC-37-LH 13.06 x 1.25 - 12 on 8.75in

$321.99

On Backorder

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

Wilwood HD 48 Curved Vane rotor, 13.06" x 1.25". Made from a proprietary iron alloy for extreme temperature resistance.

Key Features

This is a Wilwood HD 48 Curved Vane rotor with a 13.06-inch diameter and 1.25-inch thickness.
Manufactured from Wilwood's proprietary Spec-37 iron alloy, developed for extreme temperature resistance.
The alloy formulation is derived from technology used in Wilwood's extreme duty military spec rotors.
Designed to resist distortion, warping, cracking, and wear under high heat conditions.
Features 48 curved vanes for improved airflow and cooling.
Smooth pad contact faces provide a consistent surface for brake pads.

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Product Details

When you're pushing your vehicle hard, especially on the track or during spirited driving, keeping your brakes cool and consistent is key. This Wilwood HD 48 Curved Vane rotor is built to handle those demanding situations. It's designed to resist the extreme heat that can cause other rotors to warp or crack, ensuring more reliable stopping power when you need it most.

This rotor is made from Wilwood's own Spec-37 iron alloy, a material developed from their military-spec rotor technology. This proprietary blend is formulated to stand up to high temperatures, offering strong resistance against distortion, warping, and cracking. The curved vane design helps with airflow to keep the rotor cool, and the smooth pad contact faces ensure a clean and even surface for your brake pads to grab onto, without slots that can sometimes reduce pad surface area.

This is a 13.06-inch diameter rotor with a 1.25-inch thickness, featuring 48 curved vanes. It's a solid option for anyone looking to upgrade their braking system with a rotor that's built for performance and durability under stress.