Description
New Brake Master Cylinder 7/8-inch bore size FE49380 617979 29833C
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 7/8-inch bore size (Precision-engineered for consistent hydraulic pressure)
- Outlet Size: 7/16″-24 INV (Standard thread for direct line connection)
- Application: Suitable for medium-duty automotive fleets and specialized industrial machinery.
- Companion Repair Kit: 393MK (View Compatible Kit)
Verified Casting & Part Numbers
Matching your existing casting number is the most reliable method to ensure correct fitment. This unit replaces:
- FE49380
- FE54134
- 617979
- 618081
- 618082
- 618967
- 618995
- 29833C
- 29835C
- 29838C
- 5464264
- 5467084
- 5467346
- 2225032
- 111
- 106A
- 87A
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: When installing the M3624280, pay close attention to pushrod alignment. Misalignment is a primary cause of uneven internal seal wear, which can lead to premature bypass in fleet 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.
âš CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 7/8-inch bore size and 7/16″-24 INV outlet match your existing unit exactly before purchasing. Correct displacement is essential for automotive and industrial safety.
