Wilwood HD48-LW SPC-37-RH 11.75" x 1.21" 8x7.00" Curved Vane Rotor
The Wilwood HD48-LW SPC-37-RH rotor is a premium high-performance brake rotor engineered for extreme conditions. Manufactured from Wilwood’s proprietary Spec-37 iron alloy, this rotor is designed to withstand the highest temperatures with exceptional resistance to distortion, warping, cracking, and wear.
The 48 curved vane design provides superior heat dissipation and structural rigidity, while the smooth (plain) pad contact faces deliver consistent braking feel and long pad life. Full detail machining ensures precision balance and optimal performance. Ideal for racing, high-performance street use, and demanding driving conditions, this rotor represents the pinnacle of Wilwood’s brake technology.
Key Features
- Spec-37 Proprietary Iron Alloy – Extreme temperature resistance with maximum durability
- 48 Curved Vane Design – Superior heat dissipation and structural strength
- Smooth (Plain) Pad Contact Faces – Consistent braking feel and extended pad life
- Full Detail Machining – Precision balanced for optimal performance
- High Resistance to Warping & Cracking – Built for the most demanding conditions
- Right Hand (Passenger Side) – Correct directional fitment
Specifications
| Detail | Value |
|---|---|
| Part Number | 160-13497 |
| Brand | Wilwood |
| Type | HD48-LW SPC-37 Curved Vane Rotor |
| Outside Diameter | 11.75 inches |
| Thickness | 1.21 inches |
| Bolt Pattern | 8 x 7.00 inches |
| Vane Count | 48 Curved Vanes |
| Material | Spec-37 Proprietary Iron Alloy |
| Finish | Plain (Smooth Pad Faces) |
| Mount Side | Right Hand (R/H) |
| Weight | 10.40 lbs |
| Country of Origin | United States |
| Warranty | Wilwood Limited Warranty |
Whats Included
- One Wilwood HD48-LW SPC-37-RH Rotor
Product Notes
- Right Hand (Passenger Side) rotor
- Designed for high-performance and racing applications
- Professional installation and proper bedding-in recommended
Installation Notes
- Direct replacement for compatible Wilwood brake systems
- Estimated time: 30–60 minutes per rotor
- Professional installation and proper rotor bedding procedure recommended
This Part Fits
| Application | Notes |
|---|---|
| Wilwood Brake Systems | Compatible with Wilwood UTV and performance brake kits requiring 11.75" x 1.21" rotors with 8x7.00" bolt pattern |
Why Choose Wilwood HD Series Rotors?
- Proprietary Spec-37 iron alloy for extreme temperature and wear resistance
- Advanced curved vane design for superior heat management
- Precision engineering trusted by professional racers worldwide
- Built for maximum performance and longevity under the harshest conditions
Frequently Asked Questions
-
Q: Is this a left or right hand rotor?
A: This is the Right Hand (Passenger Side) rotor. -
Q: What makes Spec-37 material special?
A: Spec-37 is a proprietary iron alloy developed by Wilwood for extreme durability, heat resistance, and resistance to warping and cracking. -
Q: Is this rotor slotted or drilled?
A: No, this is a plain (smooth) face rotor with curved vanes for maximum heat dissipation. -
Q: Is professional installation recommended?
A: Yes, professional installation and proper rotor bedding are strongly recommended for optimal performance and safety.
Shipping & Handling
- Method: Ground UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Secure Wilwood retail packaging
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