Universal Master Cylinder 1-1/8 in. Bore
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JEGSPART NUMBER: 555-631403

Universal Master Cylinder 1-1/8 in. Bore

$9379$101.99You Save$8.20
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Universal Master Cylinder
  • 1-1/8 in. Bore
  • Aluminum body
  • Composite Dual Reservoir
  • 1/2 in.-20 Ports
    Includes:
  • (2) 1/2 in.-20 IFM to 3/8 in.-24 IFF Fittings
  • (1) Boot
  • (1) 3/8 in.-24 Rod
  • (2) Mounting Brackets
  • Hardware

    JEGS 555-631403 Universal Master Cylinder Features:

    • Constructed from aluminum for the master cylinder and composite dual reservoir with boot
    • Features extra, through body holes, for side mounting
    • Specifications: 1.125 in. piston for 2-piston front & 4-piston rear disc up to 4-piston front & 4-piston rear disc system
    • Dimensions: mounting holes are 5/16" and are on 3-3/16" (3.188) centers, overall length: 8.25", overall width: 3.5", height from base to top of reservoir: 4.5", spacing between inlet fittings 3.0", length of plastic reservoir 6.5", and spacing from front to centerline of first inlet fitting: 1"
    • Includes (2) 1/2"-20 ifm to 3/8"-24 iff fittings, (1) boot, and (1) 3/8"-24 rod

    • 3/8"-24 Threads

    • Multi-Purpose Master Cylinders

      JEGS Universal Master Cylinders are available with two-piston sizes for virtually any combination of drag racing, late model stock car, off-road, or street rod braking system.

      Master cylinders feature an aluminum body, composite dual reservoir with boot, and 3/8 in.-24 rod in either a 1.031 in. piston (for drum/drum up to 2-piston front & 4-piston rear disc) or a 1.125 in. piston (for 2-piston front & 4-piston rear disc up to 4-piston front & 4-piston rear disc) system. Each master cylinder also features extra, through body holes, for side mounting.

      JEGS Master Cylinders are available with 1/2 in.-20 male x -3 AN IFF brake line adapter fittings; or in a kit with a universal billet mounting bracket/spacer, brake line adapter fittings, and mounting hardware.

    Part TypeMaster Cylinder
    Product LineJEGS Universal Master Cylinders
    BrandJEGS
    Package Height5.6
    Package Width10.3
    Package Length10.5
    Weight3.5 PG
    Part CategoryReplacement Parts
    Master Cylinder Stroke1.35 in (34.29 mm)
    Hardware IncludedYes
    Remote ReservoirNo
    Mounting Flange Center To Center Distance (In.)N/A
    Master Cylinder FinishNatural
    Mounting Hole Quantity2 holes
    Brake Booster IncludedNo
    Master Cylinder Bore Size1.125 in (28.575 mm)
    Bowl DesignDual
    Mounting Brackets IncludedYes
    Master Cylinder MaterialAluminum
    Master Cylinder Cap IncludedYes
    Pushrod IncludedNo
    Front Brake TypeVarious - Application Specific
    Reservoir MaterialAluminum
    Part FitmentSemi Universal
    Reservoir IncludedYes
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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