Wilwood Rotor-GT48 SPC-37-LH-Bedded 12.88 x 1.25 - 12 on 8.75in

Wilwood's GT 48 Curved Vane Spec-37 rotors are manufactured from a proprietary iron alloy developed to withstand extreme temperatures with the highest possible degree of resistance against distortion, warping, cracking, and wear. The formulation for this alloy is a derivative of technology and materials that were significant in the development of the extreme duty military spec rotors that are manufactured by Wilwood. Combined with our proven GT Series asymmetrical face slot pattern and individual dynamic balancing, you are assured the smoothest, vibration free performance at any speed. These rotors provide the highest cooling capacity and longest service life for extreme braking short tracks and road course competition.

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Reference Information

Brake Rotor, GT Series, Slotted Surface, Carbon Iron, Natural, Driver Side, Each

Wilwood GT Series curved vane rotors are built for the extreme conditions of professional motorsports. The superior heat absorption and dissipation characteristics of these heavy-wall rotors are the keys to preventing heat-fade—and realizing a long service life from the rotors and pads. All rotors are cast from premium-grade, long-grain carbon iron for extended wear, thermal stability, and resistance to distortion. Wilwood GT rotors are fully detail-machined to eliminate stress points and unnecessary weight away from the pad sweep face. Each rotor faces and O.D. is precision-turned to less than .001 in. for flatness, parallelism, and runout. An asymmetrical face slot pattern provides smoother engagement through reduced harmonics—and improved thermal balance between the I.D. and O.D. of the rotor. Every rotor is then individually dynamic-balanced to offer vibration-free performance at any speed. These rotors provide the highest cooling capacity and longest service life for extreme-braking short tracks and road course competition.