Description
Part Number: AF300-155
Aeroflow GM Brake Master Cylinder 1-1/8″ Bore (Chrome Cast Iron)
Heavy-duty GM style dual-reservoir brake master cylinder featuring a high-lustre chrome finish and durable cast iron construction for optimal hydraulic brake system performance.
Key Features
- ☑ Premium cast iron construction with a mirror-finish chrome plating.
- ☑ Precision 1-1/8″ (28.57mm) bore diameter ideal for high-demand braking systems.
- ☑ Dual reservoir bowl layout for isolated front and rear hydraulic circuits.
- ☑ Standard GM 3-3/8″ bolt mounting center spacing for universal or direct bolt-on install.
- ☑ Suitable for both manual brake setups and power-assisted booster setups.
- ☑ Ported on both sides with inverted flare ports for flexible line plumbing.
Technical Specifications
| Brand | AeroFlow Performance |
|---|---|
| Part Number | AF300-155 |
| Body Material | Cast Iron |
| Finish | Chrome Plated |
| Bore Diameter | 1-1/8″ (28.57mm) |
| Reservoir Style | Dual Bowl / Dual Reservoir |
| Mounting Spacing | 3-3/8″ GM Universal Mount |
| Port Style | Inverted Flare (Ports on both sides) |
What’s Included in the Box
- 1 x Aeroflow AF300-155 1-1/8″ Bore Cast Iron GM Brake Master Cylinder (Chrome)
- Inverted flare port plugs for unused fluid ports
Engineered for hot rods, street machines, and track-prepared vehicles, the Aeroflow Performance AF300-155 brake master cylinder delivers robust pressure control and long-lasting durability. Backed by JP Racing, your premier UK motorsport stockist offering fast dispatch and dedicated technical assistance across the UK.







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