Wilwood 160-12289 HD 36 Curved Vane RH Rotor 12.19in 8x7.00 for Brake Kits

Vehicle Fitment

• Universal - for use with Wilwood brake conversion kits, calipers, and hub/hat assemblies matching this rotor's bolt circle, diameter, and thickness

Fitment Notes

• Right-hand (RH), directional rotor - must be paired with the matching left-hand rotor (Wilwood 160-12290) to complete a front or rear axle set
• Confirm your Wilwood caliper and hub/hat setup specifies an 8 x 7.00 in. bolt circle, 12.19 in. diameter, and 0.81 in. thickness before ordering
• Rotor only - no hat, hardware, or mounting components included unless purchased separately
• Commonly used as a direct replacement rotor on existing Wilwood big brake conversion kits (including some FIAT 500 Wilwood kit installs), as well as circle track and open-wheel racing applications

Features

• Cast from Wilwood's proprietary Spec-37 long-grain carbon iron alloy, derived from technology developed for extreme-duty military-spec rotors
• Curved, directional vane design improves cooling airflow for better heat management
• Full detail machining removes stress points and unnecessary weight from the pad sweep face
• Smooth, non-slotted pad contact surface
• Faces and outer diameter precision turned to less than .001 in. for flatness, parallelism, and runout
• Individually dynamic balanced for vibration-free performance at any speed
• High resistance to distortion, warping, cracking, and wear under extreme heat
• Built for the demands of professional motorsports, including asphalt late models, modifieds, and open-wheel competition
• Made in the USA

Specifications

• Bolt Circle: 8 x 7.00 in.
• Rotor Diameter (O.D.): 12.19 in.
• Rotor Thickness: 0.81 in.
• Rotor Side: Right Hand (RH), Directional
• Vane Design: Curved Vane
• Material: Spec-37 Long-Grain Carbon Iron
• Surface Finish: Smooth (Non-Slotted, Non-Drilled)
• Country of Origin: USA

Included Components

• 1x HD 36 Curved Vane Rotor, Right Hand

Product Description

The Wilwood 160-12289 is an HD 36 Curved Vane rotor, right-hand directional, built for high-heat racing and performance brake applications. Cast from Wilwood's proprietary Spec-37 long-grain carbon iron - an alloy derived from technology developed for extreme-duty military-spec rotors - it's engineered to resist distortion, warping, cracking, and wear even under sustained hard use.

The curved vane design directs airflow through the rotor for improved cooling, while full detail machining strips unnecessary weight and stress points from the pad sweep face without adding slots or drilling that can reduce pad contact area. Every rotor is precision turned to less than .001 inch for flatness, parallelism, and runout, then individually dynamic balanced for smooth, vibration-free performance at speed.

At 12.19 inches in diameter, 0.81 inches thick, and an 8 x 7.00 inch bolt circle, this rotor is intended as a spec-matched replacement or upgrade for existing Wilwood brake conversion kits and hub/hat assemblies built to these dimensions - common in asphalt late model, modified, and open-wheel racing, as well as some street-driven Wilwood big brake kit installs. Since it's a directional right-hand rotor, order the matching left-hand rotor (160-12290) to complete a full axle set.