Description
New Brake Master Cylinder 1-inch bore size 29851 618012 5464406
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)
- Outlet Size: 1/2″-20 INV (Standard inverted flare thread for secure line connection)
- Application: Suitable for medium-duty automotive fleets and specialized industrial machinery.
- Companion Repair Kit: 443MK (View Compatible Kit)
Verified Casting & Part Numbers
Matching your existing casting number is the most reliable method to ensure correct fitment. This unit replaces:
- 29851
- 29851C
- 29812C
- 618012
- 5461191
- 5464406
- 5484408
- FF76451
- 85
- 107
- 108
- 123
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: When installing the M3637353, 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 1/2″-20 INV outlet match your existing unit exactly before purchasing. Correct displacement is essential for automotive and industrial safety.
