New Brake Master Cylinder 1-1/4-inch bore size FE2951 FD2951 29744
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 1-1/4-inch bore size (Essential for pressure calibration)
- Outlet Sizes: Dual 1/2-20 INV | Single 1/8-27 NPT (Multi-port distribution)
- Application: Heavy-duty automotive and industrial machinery.
- Companion Repair Kit: 1MK (View Compatible Kit)
Verified Casting & Part Numbers
Matching your existing part number is the most reliable method to ensure correct fitment. This unit replaces:
- FE2951
- FD2951
- 29744
- 2951
- 5461387
- 616588
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: Improper pushrod alignment is the leading cause of “spongy” pedal feel or premature seal failure. When installing on heavy equipment, ensure total linkage alignment to prevent side-loading. This unit features a cup-style piston; it will NOT replace Wagner power masters (flat piston) or Mico cylinders.
⚠ CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 1-1/4-inch bore size and dual 1/2-20 / single 1/8-27 NPT outlets match your existing unit.
Note: Not compatible with Mico cylinders or Wagner units requiring a flat reaction piston.












