Description
New Brake Master Cylinder 1-1/4-inch bore size FE543 545 30
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 1-1/4-inch bore size (Essential for heavy-duty pressure requirements)
- Outlet Size: 3/8-NPT (Standard pipe thread for secure connection)
- Application: Heavy industrial equipment and large fleet vehicle hydraulic systems.
- Companion Repair Kit: 1MK (View Compatible Kit)
Verified Casting & Part Numbers
Matching your existing part number is the most reliable method to ensure correct fitment. This unit replaces:
- FE543
- 545
- 30
- 543C
- 5461377
- 616631
- 620341
- S2117
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: The 1-1/4-inch bore size is a high-displacement specification often found in heavy equipment. When installing the M54484, check your pushrod alignment to ensure the piston travels squarely within the bore. Misalignment is the leading cause of internal seal bypass in industrial fleet applications. Always verify that the 3/8-NPT threads are clean and use appropriate sealant to prevent hydraulic leaks.
âš CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 1-1/4-inch bore size and 3/8-NPT outlet match your existing unit exactly before purchasing.
