What is the benefit of Type III hard anodizing?

Type III hard anodizing creates a very hard, abrasion-resistant surface on the caliper. This finish improves durability and helps the caliper withstand the heat and friction generated during heavy braking.

What does the staggered piston size mean for braking performance?

The staggered piston sizes (1.88-inch and 1.75-inch) help to balance the braking force applied to the rotor. This design promotes more even pad wear and consistent engagement across the rotor surface, contributing to improved braking feel and performance.

What other components are typically needed for a brake caliper upgrade?

When upgrading calipers, you'll generally need compatible brake lines, a master cylinder that can supply adequate fluid volume and pressure, and rotors that match the caliper's specifications, including disc thickness. It's always best to consult the manufacturer's recommendations for a complete system.

Wilwood XRZ4R Brake Caliper 1.88in/1.75in Piston .810in Disc

Name: Wilwood Caliper Type III Ano Right XRZ4R 1.88in/1.75in Piston .810in Disc
Brand: Wilwood
SKU: wilwood-wilwood-caliper-type-iii-ano-right-xrz4r-1-88in-1-75in-piston-810in-disc-t14-513960
Price: 879.95 USD
Availability: BackOrder

Wilwood Caliper Type III Ano Right XRZ4R 1.88in/1.75in Piston .810in Disc

$879.95

On Backorder

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

Wilwood XRZ4R 4-piston brake caliper for .810in disc. Features 1.88in and 1.75in pistons.

Key Features

This is the right-hand side caliper.
Features a Type III hard anodized finish for improved durability.
Includes a staggered piston arrangement with a 1.88-inch and a 1.75-inch piston.
Designed for rotors with a disc thickness of .810 inches.
Constructed from forged aluminum for a strong and lightweight build.
Part number 120-16462.

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Product Details

The Wilwood XRZ4R caliper features a unique Type III hard anodized finish, offering improved durability and resistance to wear. This caliper is designed for performance braking systems, utilizing a staggered piston arrangement with a 1.88-inch piston and a 1.75-inch piston. This setup helps to balance braking force and ensure consistent pad engagement across the rotor surface, especially when paired with rotors designed for this specific caliper. The caliper body itself is well-built from forged aluminum, providing a strong yet lightweight foundation for your braking setup.

This specific caliper is configured for the right-hand side of the vehicle and is intended for use with rotors that have a disc thickness of .810 inches. The Type III anodizing process creates a hard, abrasion-resistant surface that stands up well to the heat and friction generated during hard braking. This makes it a solid choice for drivers looking to upgrade their braking performance and reliability. The forged aluminum construction not only contributes to its strength but also helps to dissipate heat, further supporting consistent performance under demanding conditions.

When considering a brake caliper upgrade like this, it's important to ensure compatibility with your existing or planned brake system components, including master cylinders, brake lines, and rotor dimensions. This caliper is a significant component in a high-performance braking system, and its proper integration is key to achieving the desired braking improvements.