Wilwood 260-15543-P Compact Tandem Master Cylinder Bore Classic Mustang - 1-1/8

The Wilwood 260-15543-P Compact Tandem Master Cylinder is engineered specifically for 1964-1972 Ford Mustang manual brake applications. This high-performance brake master cylinder features a 1-1/8" bore diameter and comes complete with the correct-style pushrod and eyelet for direct bolt-on installation to early Mustang factory brake pedals.

Key Features:

• 1-1/8" bore diameter for optimal brake pressure and pedal feel
• Ball burnished finish for corrosion resistance and clean appearance
• Designed for factory mount flanges from 3.22" to 3.40" (matches 64-72 manual master cylinder mount)
• 1.10" stroke length with 2:1 volume ratio between primary and secondary chambers
• Dual fluid outlet ports positioned on both sides of the bore for flexible installation
• Machined from high-pressure die castings for strength and precision
• Weighs only 3 lbs—75% lighter than typical cast iron OE master cylinders
• Includes correct pushrod for 1964-1972 Mustang factory brake pedal

This compact tandem master cylinder is part of Wilwood's complete brake system solution for classic Mustangs. For complete brake bias control, Wilwood offers compatible combination proportioning valve kits with brackets and stainless steel lines: PN 260-14248 for left-hand outlets or PN 260-15667 for right-hand outlets. The lightweight aluminum construction reduces unsprung weight while maintaining the reliability and performance expected from Wilwood's engineering.