New Brake Master Cylinder 7/8-inch bore size FE35461 FE45464
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 7/8-inch bore size (Precision-honed for consistent hydraulic pressure)
- Outlet Sizes: 3/8″-24 INV & 1/8″-27 INV (Standard port sizes for secure line connection)
- Application: Optimized for heavy-duty fleet trucks and specialized industrial machinery.
- Companion Repair Kit: N/A (Complete unit replacement recommended for maximum reliability)
Verified Casting & Part Numbers
Matching your existing casting number is the most reliable method to ensure correct fitment. This unit replaces:
- FE35461
- FE45464
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: When installing the M3612153, pay close attention to pushrod alignment. Misalignment is a primary cause of uneven internal seal wear, which can lead to premature bypass in fleet and industrial applications. Always bench bleed the unit before final installation to ensure a firm pedal and perform a complete system flush with fresh fluid to protect the precision 7/8-inch bore galleries.
⚠ CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 7/8-inch bore size and inverted flare outlet ports match your existing unit exactly before purchasing. Correct displacement is essential for automotive and industrial safety.











