Heavy-Duty Brake Master Cylinder 1-1/4″ Bore – Premium Replacement for Automotive and Industrial Vehicles (FD4570 Casting)

ABC Dynamics: Precision Parts for Uncompromising Performance.

Get your **vehicle’s braking system** back to **peak performance** with the **M457266** Master Cylinder from **ABC Dynamics**. Engineered with a precise **1-1/4″ bore** and manufactured using high-grade materials, this unit is the ideal replacement solution for both demanding **industrial equipment** and **specialized automotive systems**. Don’t compromise on safety—trust our expertise for quality you can feel with every stop.

Key Specifications & Expert Features

• Bore Diameter: **1 1/4″** (Critical for vehicle and equipment pressure calibration)
• Outlet Size: **1/2″-20** (Standard thread for direct line connection)
• **Vehicle Use:** Engineered to meet the high demands of both **performance cars** and heavy equipment.
• Companion Repair Kit: 1MK

Verified Casting & Part Numbers (Cross-Reference)

This master cylinder is a confirmed, accurate replacement for the following casting numbers, commonly found on various makes of heavy-duty **trucks, equipment, and specialty automobiles**. Matching your existing part number is the **most reliable method** to ensure correct fitment:

• FD4570
• 4570
• 4570C
• 32

Expert Installation Note: Maximizing Brake Pedal Feel and Longevity

Experience Tip: Whether installing on a classic car or a piece of industrial equipment, ensure the pushrod length and linkage alignment are correct. **Improper adjustment is the leading cause of spongy brake pedal feel** due to seal damage. Our master cylinder features a specially honed bore to resist wear, ensuring your new seals last longer when paired with proper installation.