Wilwood 260-13375-BK 15/16" Tandem Aluminum Master Cylinder Black E-Coat

The Wilwood 260-13375-BK is a 15/16" bore tandem aluminum master cylinder featuring a durable black e-coat finish. Designed primarily for manual brake applications, this lightweight master cylinder delivers exceptional performance while reducing weight by approximately 75% compared to traditional cast iron OE master cylinders.

Key Features:

• 15/16" bore diameter for optimal braking performance
• Machined from high-pressure die castings for strength and durability
• Weighs only 3 lbs—75% lighter than most cast iron master cylinders
• Black e-coat finish provides corrosion resistance and a professional appearance
• Designed for mount flanges from 3.22" to 3.40", compatible with most domestic cars and trucks from mid-1960s to present
• Fluid outlet ports on both sides of the bore for versatile installation
• 1.10" stroke length with 2:1 volume ratio between primary and secondary chambers
• Includes pushrod for manual brake systems

This master cylinder is an excellent upgrade for street rods, muscle cars, and custom builds requiring reliable manual brake operation. Compatible with Wilwood's combination proportioning valve kit (PN 260-13190) or retrofit kit (PN 220-13189) for complete brake system integration.