New Brake Master Cylinder 1-inch bore size FE1282 18031
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 1-inch bore size (Essential for maintaining specific hydraulic pressure)
- Outlet Size: 1/2″ INV (Standard thread for direct line connection)
- Application: Medium-duty fleet vehicles and specialized industrial machinery.
- Companion Repair Kit: 3MK (View Compatible Kit)
Verified Casting & Part Numbers
Matching your existing part number is the most reliable method to ensure correct fitment. This unit replaces:
- FE1282
- 18031
- 616608
- 5450655
- 1282-A
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: The 1-inch bore size is a precision specification. When installing the M343447, ensure your pushrod alignment is perfectly centered to prevent side-loading the internal seals. In industrial applications, pushrod misalignment is a frequent cause of premature seal failure. Always perform a bench bleed before installation to ensure all air is removed from the cylinder galleries.
⚠ CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 1-inch bore size and 1/2″ outlet match your existing unit exactly before purchasing. Proper hydraulic displacement is vital for braking performance.








