Wilwood Compact Remote Flange Mount Master Cylinder with Aluminum Reservoir - 13/16" Bore

Universal Fitment for Performance and Custom Brake Systems

Part #: 261-17277-.81

Overview

The Wilwood Compact Remote Flange Mount Master Cylinder with Aluminum Reservoir is a precision-engineered hydraulic component designed for high-performance braking applications. Often referred to as the “shorty” master cylinder due to its compact 3.375-inch length, this master cylinder is ideal for custom brake setups where space is limited without sacrificing performance or reliability.

Whether you are building a hot rod, race car, or upgrading your street vehicle’s braking system, this master cylinder offers a perfect balance of size, strength, and style. Its compact design allows for flexible mounting options, making it suitable for a wide range of vehicles and brake configurations. The machined billet aluminum reservoir not only reduces weight but also provides passive cooling and a classic finned aesthetic that complements traditional speed parts.

Designed for enthusiasts and professional builders alike, this master cylinder supports consistent brake pedal feel and reliable hydraulic pressure, helping you maintain control and confidence under demanding driving conditions.

Key Features

The Wilwood Compact Remote Flange Mount Master Cylinder combines advanced materials and thoughtful design to deliver superior braking performance in a compact package.

• Compact 3.375-inch overall length allows installation in tight spaces where standard master cylinders won’t fit.
• 13/16-inch bore size optimized for balanced hydraulic pressure and pedal effort in many performance brake systems.
• Flange mount design provides secure and versatile mounting options for custom brake setups.
• Machined billet aluminum reservoir features classic finned styling for reduced weight and enhanced passive cooling.
• Aluminum reservoir construction resists corrosion and adds durability compared to plastic alternatives.
• Available in multiple bore sizes ranging from 5/8" to 1.125" to suit various brake system requirements.
• Compact size and lightweight design help reduce overall vehicle weight and improve packaging flexibility.
• Precision-machined components ensure smooth piston operation and consistent hydraulic pressure.
• Compatible with a wide range of brake fluids and designed to withstand high temperatures common in performance braking.

Construction & Design

The master cylinder body is engineered for strength and reliability, featuring high-quality materials and precise machining. The compact design reduces the overall footprint without compromising the internal volume needed for effective brake fluid displacement. The flange mount allows for secure attachment to custom brackets or existing firewall locations, providing flexibility in installation.

The aluminum reservoir is crafted from billet material and finished with traditional finned styling, which not only enhances the visual appeal but also aids in dissipating heat generated during braking. This passive cooling helps maintain brake fluid integrity and reduces the risk of vapor lock under extreme conditions. The reservoir’s lightweight construction contributes to overall vehicle weight savings, an important factor in performance applications.

Installation & Fitment

This master cylinder is designed for straightforward installation in custom or retrofit brake systems. Its compact size and flange mount configuration enable it to fit in tight engine bays or confined spaces where standard master cylinders cannot be accommodated. The unit is compatible with a variety of brake lines and fittings, allowing integration with existing brake components.

No special modifications such as cutting, drilling, or tuning are required for most installations, provided the mounting flange is compatible with your setup. The reservoir’s remote mounting capability offers additional flexibility in positioning to optimize space and fluid access.

• Flange mount for secure and adaptable installation
• Compact size fits tight spaces
• Compatible with standard brake lines and fittings
• No cutting or drilling required in most applications

What's Included

• Wilwood Compact Remote Flange Mount Master Cylinder (13/16" bore)
• Machined billet aluminum finned reservoir
• Mounting flange and hardware
• Seals and internal components pre-installed
• Installation instructions

Ideal For

This master cylinder is ideal for builders and enthusiasts who require a compact, high-quality hydraulic component for custom brake systems. It is well suited for:

• Hot rods and classic cars with limited engine bay space
• Race cars and track vehicles needing precise brake control
• Street performance vehicles seeking improved pedal feel and reliability
• Custom brake setups where traditional master cylinders are too large
• Applications requiring a lightweight, corrosion-resistant reservoir