New Brake Master Cylinder 1.5-inch bore size 29934C FE57579 FD57578
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 1.5-inch bore size (Essential for high-volume displacement)
- Outlet Size: 1/2-20 INV (Standard inverted flare connection)
- Application: Heavy-duty industrial machinery and fleet transport.
- Companion Repair Kit: 478MK (View Compatible Kit)
Verified Casting & Part Numbers
Matching your existing casting number is the most reliable method to ensure correct fitment. This unit replaces:
- 29934C
- FE57579
- FD57578
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: The 1.5-inch bore size is designed for maximum fluid displacement in high-capacity systems. When installing on heavy equipment or fleet vehicles, ensure the pushrod alignment is perfectly centered to prevent premature seal wear. Our Bexar Pro units are bench-tested for high-cycle durability to meet the demands of rigorous industrial operation.
⚠ CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 1.5-inch bore size and 1/2-20 INV outlet match your existing unit exactly. Mismatching specifications can lead to dangerous braking performance.












