New Brake Master Cylinder 1-1/8-inch bore size 29785C FE27129 27129
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 1-1/8-inch bore size (Critical for accurate pressure calibration)
- Outlet Size: (2) 1/8-27 INV (Dual ports for direct line connection)
- Application: Performance automotive and heavy industrial machinery.
- Companion Repair Kit: 376MK (View Compatible Kit)
- Clutch Master Version: See CM3283971 (Uses same casting)
Verified Casting & Part Numbers
Matching your existing casting number is the most reliable method to ensure correct fitment. This unit replaces:
- 29785C
- FE27129
- 27129
- 28818C
- 5461342
- 616648
- S2693
- S3144
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: Whether installing on a classic vehicle or industrial equipment, ensure the pushrod length and linkage alignment are correct. Improper adjustment is the leading cause of spongy brake pedal feel due to premature seal damage. Our master cylinder features a specially honed bore to resist wear, ensuring your new seals last longer when paired with proper installation and a complete system flush with fresh fluid.
⚠ CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 1-1/8-inch bore size and (2) 1/8-27 INV outlets match your existing unit exactly before purchasing. Accurate displacement is required for proper automotive and industrial function.








