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    Remanufactured Hydromax booster for International 4700 4900 casting 2771424 2771819.
    Front mounting face of booster 2771424 where it bolts to the master cylinder.
    Metal stamping detail for Hydromax casting number 2771424 and 2771819.
    Rear view of booster 2771819 showing flow switch port for International school buses.
    Remanufactured Hydromax booster for International 4700 4900 casting 2771424 2771819.
    Front mounting face of booster 2771424 where it bolts to the master cylinder.
    Metal stamping detail for Hydromax casting number 2771424 and 2771819.
    Rear view of booster 2771819 showing flow switch port for International school buses.
    Home / VIEW ALL PRODUCTS
    abc dynamics

    Remanufactured Hydromax Booster Casting #2771424 #2771819 | International

    • BRAKE MASTER CYLINDER FE33502
    • Casting #2772114 Hydromax Booster | Multi-Fit GMC, Chevy, International, Ford & Industrial

    $425.00

    Out of stock

    SKU: 52980565 Categories: Hydromax Brake Boosters, VIEW ALL PRODUCTS Brand: abc dynamics
    • BRAKE MASTER CYLINDER FE33502
    • Casting #2772114 Hydromax Booster | Multi-Fit GMC, Chevy, International, Ford & Industrial
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    Remanufactured Hydromax Booster | Casting #2771424 / #2771819

    SKU: 52980565

    International Truck & School Bus Grade

    Restore your vehicle’s braking safety with this professionally remanufactured Hydromax brake booster. This unit is a direct safety replacement for International trucks and school buses originally equipped with Casting #2771424 or #2771819.

    Each assembly is restored to original factory specifications and comes complete with **new motor O-rings** to ensure a high-pressure, leak-free seal between the booster and your backup pump motor.

    Spec Identifier Detail Application Note
    Condition Remanufactured Fully tested and certified by ABC Dynamics.
    Body Casting # 2771424 or 2771819 Verify your original stamping before purchase.
    Hardware Included New Motor O-Rings Ensures proper seal for backup pump motor.
    Core Refund $75.00 Credit Refunded upon return of a rebuildable core.

    ⚠ Installation & Hardware Info

    • Motor O-Rings: New Oval O-rings are included in the box. Always replace these when remounting your backup motor to prevent hydraulic leaks.
    • Pedal Rod: Reuse your original rod if it differs from the pre-installed version. Changing the rod requires SKU 27-190 (grommet).
    • Core Return: A $75 core charge is included in the price. Return your old unit within 60 days to receive your $75 refund.

    Technical Support Resources:

    Access our video guides and full technical manuals for a successful installation.


    Video Guide


    Technical Manual

     

    ABC Dynamics Logo

    Remanufactured Booster #2771424 / #2771819

    Precision Safety for International Fleets & Industrial Equipment

    Weight 7 lbs
    Dimensions 13 × 8 × 6 in

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    ABC Dynamics Hydromax brake booster for International 4700, 4700LP, and 4700LPX chassis, casting number 2772114.
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    Hydromax Brake Boosters

    Casting #2772114 Hydromax Booster | International 4700, 4700LP, 4700LPX | OEM #2502522C92

    $400.00
    Hydromax pedal rod grommet SKU 27-190 for brake booster linkage. Photo displays two views of the item for identification; listing is for one individual grommet.
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    Hydromax Brake Boosters

    Hydromax Pedal Rod Grommet | Replacement Retention Bushing | SKU 27-190

    $15.00
    Hydromax Flow Switch Adapter SKU 529999 for converting 1-pin legacy boosters Casting 2771293, 2771371, 2771424, and 2771819 to modern 2772114 units.
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    Hydromax Brake Boosters

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