What is the advantage of forged aluminum construction?

Forged aluminum construction results in a caliper that is both strong and lightweight. This helps reduce unsprung weight, which can contribute to improved vehicle handling and responsiveness.

What does the piston size combination mean for braking?

The caliper features a 1.88-inch piston and a 1.75-inch piston. This staggered piston size is engineered to provide a more balanced and effective clamping force on the brake pads, leading to improved braking performance.

What other components are typically needed when installing this caliper?

When upgrading to performance calipers like this Wilwood FSL4R, you'll often need compatible brake pads, rotors, and potentially custom brake lines to ensure proper fitment and function. It's also important to ensure your master cylinder can adequately supply the necessary fluid volume and pressure.

Wilwood FSL4R Forged Aluminum Brake Caliper 120-13827

Name: Wilwood Caliper-Forged Superlite FSL4R Aluminum 1.88/1.75in Pistons .81in Disc Ano - Left
Brand: Wilwood
SKU: wilwood-wilwood-caliper-forged-superlite-fsl4r-aluminum-1-88-1-75in-pistons-81in-t14-519940
Price: 292.16 USD
Availability: BackOrder

Wilwood Caliper-Forged Superlite FSL4R Aluminum 1.88/1.75in Pistons .81in Disc Ano - Left

$292.16

On Backorder

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

Wilwood FSL4R forged aluminum brake caliper with 1.88/1.75in pistons. A solid option for improved braking performance.

Key Features

Fits Wilwood Caliper-Forged Superlite FSL4R Aluminum 1.88/1.75in Pistons .81in Disc Ano - Left
Forged aluminum construction for strength and light weight.
Features a 1.88-inch and a 1.75-inch piston for balanced braking.
Designed for use with .81-inch thick brake discs.
Anodized finish offers durability and corrosion resistance.
This is the left-side caliper.

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Product Details

Forged from aluminum, this Wilwood Superlite FSL4R brake caliper is built for serious stopping power. It features a unique combination of piston sizes, with one 1.88-inch piston and one 1.75-inch piston, designed to work together for balanced braking force. This caliper is intended for use with .81-inch thick discs, offering a direct upgrade path for many performance applications.

The forged aluminum construction makes this caliper both strong and lightweight, which helps reduce unsprung weight and can improve overall vehicle handling. Its anodized finish not only looks sharp but also adds a layer of durability against corrosion and wear. This is the left-side caliper, so be sure to order the correct side for your brake system setup.

When you're looking to improve your vehicle's braking performance, especially for track days or spirited driving, calipers like these are a key component. They work in conjunction with your brake pads and rotors to provide the clamping force needed to slow your vehicle effectively. Always ensure you have the correct master cylinder and brake lines to match the caliper's requirements for optimal performance.