Availability: In Stock
Estimated Shipping Date: Monday
Part No. CAL-4509
Brand: Cal Custom
  • Supplied with GM OEM style mounting bracket which is removable and is therefore suitable for many other applications
  • Single diaphragm booster
  • The booster mounts with a 4 bolt pattern. The 4 bolts are in a perfect square and the centre to centre measurement of the master cylinder mounting bolt holes is 3-3/8"
  • Check mounting hole centre to centre measurements for suitability
  • Fits all aftermarket master cylinders including Cal Custom, MBM, RPC, CPP etc


  • Not all Brake Boosters on the market are equal – in quality of appearance or operating capability, choose a high quality product like ours for your braking needs.