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Cal Custom Chrome Brake Master Cylinder 1⅛" Bore O.E. Style, GM, Chev, Holden

SKU CAL-4476
Sold out
Original price $181.65 - Original price $181.65
Original price
$181.65 - $181.65
Current price $181.65
Out of stock
  • Chrome Aluminium O.E. GM Style Master Cylinder
  • 1⅛” bore
  • Centre to centre measurement of the mounting bolt holes is 3-3/8”
  • 9/16” and ½” ports on both sides
  • Four port unit meaning you can mount your lines to either side
  • Works for:
    • disc/disc
    • disc/drum
    • drum/drum
  • Shallow pocket
  • Fits most aftermarket boosters including Cal Custom and MBM, as well as all original GM (same 2 and 4 bolt pattern)
  • Considerably lighter than O.E. cast iron master cylinder
  • Can be mounted to original firewall location when not using a booster


  • When mounting any master cylinder under the floor, residual pressure valves are necessary to prevent loss of brake pressure (they are not usually required for firewall mount kits).

Part Number: CAL-4476

We ship via Parcel Post with tracking

To ensure reliable delivery we ship via Australia Post.
Order by 2pm to be dispatched the same day (conditions apply).