New Brake Master Cylinder 1-1/2-inch bore size FD2704 FE2704 FE2707 2704
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Key Specifications & Expert Features
- Bore Diameter: 1-1/2-inch bore size (Critical for pressure calibration)
- Piston Depth: 2-1/2″ (Deep cup piston—verify against existing unit)
- Outlet Size: 1/8″ NPT (Primary) | 1/2-20 (Outlets 2 & 3)
- Application: Heavy-duty forklifts, graders, and industrial machinery.
- Companion Repair Kit: 39MK (View Compatible Kit)
Verified Casting & Part Numbers
Matching your existing part number is the most reliable method to ensure correct fitment. This unit replaces:
- FD2704
- FE2704
- FE2707
- 2704
- 2704C
- 616812
- 618112
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. On heavy machinery like motor graders, ensure total linkage alignment to prevent side-loading. Our M66177 housing uses a specialized honing process for superior bore integrity, outlasting standard industrial replacements.
⚠ CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 1-1/2-inch bore size and 2-1/2″ deep cup piston match your existing unit.
NOT for Wagner Power Masters (flat-style piston) or Mico Cylinders (flat reaction piston – See last picture). Check your internal components before ordering.













