1975-1976 Chevrolet Corvette Stingray Brake Master Cylinder – Castings 5470409 / 5459349
CRITICAL: Verify Specifications
Always verify the casting number and physical bore specifications on your original core before installation to ensure accurate fitment.
Product Specifications
- Bore Diameter: 1-1/8-inch bore size
- Application: Heavy-duty fleet and automotive vehicles
Verified Casting Numbers
- 5470409
- 5459349
Application & Fitment Data
Model Years: 1975, 1976
Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985:
- Alignment: Ensure meticulous alignment with the classic booster pushrod and firewall linkage before mounting. A misaligned booster pushrod restricts the piston from returning to its fully open “at rest” position, keeping the compensating ports closed and locking up the front brakes.
- Bench Bleeding: Always complete a thorough bench-bleeding routine until all air bubbles vanish completely from both ports prior to final vehicle assembly to protect your master cylinder internal seals from running dry.

















