Description
New Brake Master Cylinder 1-inch bore size FF78879 2225751 29868C
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 1-inch bore size (Precision-honed for consistent hydraulic pressure)
- Forward Outlet Size: 9/16″-18 INV (Secure inverted flare connection)
- Rearward Outlet Size: 7/16″-24 INV (Standard thread for direct 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:
- FF78879
- 29868C
- 2225751
- 2226091
- 2227111
- 5460465
- E1831
- 118
- AD
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: When installing the M7124512, 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 1-inch bore galleries.
âš CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 1-inch bore size and dual inverted flare outlet ports match your existing unit exactly before purchasing. Correct displacement is essential for automotive and industrial safety.
