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    BRAKE MASTER CYLINDER FE786
    Automotive part with black rubber cover.
    Metallic mechanical part with rubber cap.
    Thermostat housing with rubber seal.
    Brake master cylinder with rubber boot.
    BRAKE MASTER CYLINDER FE786
    Automotive part with black rubber cover.
    Metallic mechanical part with rubber cap.
    Thermostat housing with rubber seal.
    Brake master cylinder with rubber boot.
    Home / VIEW ALL PRODUCTS
    Bexar Pro Componets

    New Brake Master Cylinder 1-1/2-inch bore size FE786 786

    • Bexar Pro 1MK master cylinder repair kit for part numbers M1402121 and M54484.
    • BRAKE MASTER CYLINDER FD23473

    $315.80

    SKU: M78502 Categories: Brake Master Cylinders, VIEW ALL PRODUCTS Brand: Bexar Pro Componets
    • Bexar Pro 1MK master cylinder repair kit for part numbers M1402121 and M54484.
    • BRAKE MASTER CYLINDER FD23473
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    • Wheel Cylinders

    New Brake Master Cylinder 1-1/2-inch bore size FE786 786

    Bexar Pro Components: Heavy-Duty Reliability for Fleet & Industry.

    Restore your braking system to peak performance with the M78502 Master Cylinder from Bexar Pro Components. Engineered with a precision 1-1/2-inch bore and high-grade materials, this unit is built for the rugged demands of heavy-duty fleet reliability, making it the ideal solution for both industrial equipment and automotive applications.

    Key Specifications & Expert Features

    • Bore Diameter: 1-1/2-inch bore size (Essential for maintaining high-volume hydraulic pressure)
    • Outlet Size: 3/8-NPT & 1/4-NPT (Dual-port NPT configuration for robust plumbing)
    • Application: Medium-duty fleet vehicles and specialized industrial machinery.
    • Companion Repair Kit: 71MK (View Compatible Kit)

    Verified Casting & Part Numbers

    Matching your existing casting number is the most reliable method to ensure correct fitment. This unit replaces:

    • FE786
    • 786

    Expert Installation & Field Note

    Based on our shop experience specializing in heavy-duty brakes since 1985: The 1-1/2-inch bore size is a high-displacement specification. When installing the M78502, ensure your pushrod alignment is perfectly centered to prevent side-loading the internal seals. In industrial applications, pushrod misalignment is a frequent cause of premature seal failure. Always perform a thorough bench bleed before installation to ensure all air is removed from the cylinder galleries to maintain a firm pedal feel.

    ⚠ CRITICAL: Verify Specifications

    To ensure safety, verify that this master cylinder’s 1-1/2-inch bore size and NPT outlet thread sizes match your existing unit exactly before purchasing. Proper hydraulic displacement is vital for braking performance.

    Bexar Pro Components

    Bexar Pro Components

    SKU: M78502

    Official Master Cylinder Installation Guide
    Weight 7 lbs
    Dimensions 10 × 8 × 4 in

    Related Products

    Bexar Pro 71MK master cylinder repair kit for part number M78502.
    Add to wishlist
    Quick View

    Brake Master Cylinder Repair Kits

    MC KIT 71MK

    $55.00
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