New Brake Master Cylinder 1-inch bore size 29847C 29847 617979
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 1-inch bore size (Critical for vehicle and equipment pressure calibration)
- Outlet Size: 1/8″-27 & 7/16″-24 INV (Dual port threading for direct line connection)
- Application: Suitable for use in both Brake and Clutch hydraulic systems.
- Vehicle Use: Engineered for medium-duty trucks and heavy industrial equipment.
Verified Casting & Part Numbers
Matching your existing casting number is the most reliable method to ensure correct fitment. This unit replaces:
- 29847C
- 29847
- 617979
- 91
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: Whether installing on a performance vehicle or industrial equipment, ensure the linkage alignment and pushrod depth are correct. Improper adjustment is the leading cause of spongy 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 thorough system bleed. Always bench bleed before final mounting to ensure the 1-inch bore galleries are free of air.
⚠ CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 1-inch bore size and dual port threads (1/8″-27, 7/16″-24) match your existing unit exactly before purchasing. Accurate hydraulic displacement is required for proper automotive and industrial function.














