Description
New Brake Master Cylinder 1-3/4-inch bore size FE777 777 777C
Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.
Restore reliable, high-volume stopping power to your commercial vehicle, bus, or heavy equipment with the M284249 Master Cylinder from Bexar Pro Components. Engineered with a powerful 1-3/4-inch bore and a specific 4-bolt mounting pattern, this unit is built for the rugged demands of heavy-duty fleet reliability, making it the ideal solution for both industrial equipment and specialized automotive systems.
Key Specifications & Expert Features
- Bore Diameter: 1-3/4-inch bore size (High-volume fluid displacement)
- Mounting: 4-Bolt mounting pattern (Critical for heavy-duty chassis fitment)
- Outlet Size: 3 x 1/2-20 INV | 1 x 1/8-27 NPT Secondary
- Application: Heavy-duty trucks, buses, and commercial industrial machinery.
- Companion Repair Kit: 175MK (View Compatible Kit)
Verified Casting & Part Numbers
Matching your existing part number is the most reliable method to ensure correct fitment. This unit replaces:
- FE777
- 777
- 777C
- 616827
- 618127
- JML 262
- 54837A
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985: The large 1-3/4-inch bore is critical for maximizing fluid displacement to large wheel cylinders or calipers. When installing this unit on a heavy-duty vehicle, ensure your bleed procedure is thorough to remove all air from the extensive lines, which is the most common cause of a spongy pedal in high-volume commercial systems.
âš CRITICAL: Verify Specifications
To ensure safety, verify that this master cylinder’s 1-3/4-inch bore size and 4-bolt mounting pattern match your existing unit before purchasing.
