The Forged Narrow Superlite 4R (FNSL4R) is the latest evolution of the Superlite caliper family, adding radial mounting for easier adaptation and more precise alignment over the rotor with two planes of adjustment. It’s designed to deliver consistent braking performance across a wide range of vehicle applications and demanding conditions.
The FNSL4R body is built around a durable, efficient forging. Each caliper is stress-flow forged from premium aluminum alloy billets to align the metal’s grain structure with the caliper’s shape, reducing the internal stress disruptions associated with machining from a straight billet. The design is developed using computer-generated solid modeling and FEA stress analysis, with weight starting at 4.9 lb.
FNSL4R calipers are available in different piston bore sizes and can be used as front or rear calipers. Standard pistons are one-piece stainless steel for corrosion resistance and reduced heat transfer, with optional Wilwood Thermlock pistons to further cut heat transfer into the caliper body, seals, and fluid.
Specifications
Pistons
Piston Count
4
Piston Type
Stainless
Total Piston Area
3.00 in²
Piston Bore (Piston 1)
1.38 in
Piston Bore (Piston 2)
1.38 in
Dust Boots
No
Rotor Compatibility
Rotor Width
0.81 in
Minimum Rotor Width
0.75 in
Maximum Rotor Width
0.84 in
Minimum Rotor Diameter
11.75 in
Maximum Rotor Diameter
14.00 in
Brake Pads
Pad Type
7416
Total Pad Area
8.2 in²
Total Pad Volume
3.8 in³
Mounting
Mount Type
Radial
Mount Side
Universal
Mount Center
5.98 in
Mount Hole Size
0.39 in
Mount Height
1.45 in
Inlet Thread Size
1/8-27 NPT
Material, Weight & Finish
Material
Forged Aluminium
Weight
5.0 lb
Color
Yellow
Finish
Yellow Powder Coat
Universal Part: This product fits multiple vehicles (universal application).
Vehicle Compatibility
Brand
Model
Generation / Chassis
Engine
Universal
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WILWOOD
WILWOOD High-Performance Brake Kits for Car Enthusiasts
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Wilwood 120-14055 FNSL4R Universal Radial Mount Caliper 4 Pistons Yellow
WILWOOD High-Performance Brake Kits for Car Enthusiasts
Upgrade your vehicle's braking system with WILWOOD High-Performance Brake Kits, designed specifically for car enthusiasts who demand superior stopping power and reliability. Our brake kits are engineered to enhance your driving experience, ensuring safety and performance on the road or track.
Key Features and Benefits:
- Exceptional Stopping Power: WILWOOD brake kits provide unmatched braking performance, allowing for quicker stops and improved control.
- Durable Construction: Made from high-quality materials, our brake kits are built to withstand extreme conditions, ensuring longevity and reliability.
- Easy Installation: Designed for a straightforward installation process, WILWOOD brake kits can be fitted with minimal tools, making upgrades hassle-free.
- Customizable Options: Choose from a variety of configurations and finishes to match your vehicle's style and performance needs.
- Enhanced Heat Dissipation: Our advanced engineering ensures optimal heat management, reducing brake fade during intense driving conditions.
Elevate your vehicle's performance with WILWOOD High-Performance Brake Kits. Whether you're on the racetrack or navigating city streets, our brake kits deliver the reliability and power you need. Don’t compromise on safety or performance—experience the WILWOOD difference today! Visit our website to explore our full range of products and make your purchase now!
