1964-1966 Oldsmobile 98 Brake Master Cylinder – Premium Replacement
SKU: 10-355-51000
Technical Specifications
| Primary Bore Diameter | 1.000-Inch (1″) |
| Housing Material | Premium Heavy-Duty Cast Iron (Replicates original Delco Moraine structural finish) |
| Reservoir Configuration | Integrated deep single/dual-chamber reservoir with standard metal bale wire cap clamp assembly |
Features
- Designed for classic Oldsmobile models from 1964 to 1966, ensuring precise fit and function.
- Constructed for durability and reliable hydraulic performance in heavy-duty applications.
- Supports both automotive restoration and fleet maintenance with high-quality materials.
- Meets or exceeds OEM specifications for safety and efficiency in brake systems.
- Easy to install with proper alignment and compatibility verification recommended.
Application & Fitment Data
Years: 1964, 1965, 1966
Years: 1965, 1966
Years: 1964
Years: 1964
Years: 1965, 1966
Original Factory Casting Cross-Reference
Compare these physical casting stamps on your original core to ensure architectural footprint accuracy prior to clean installation:
🛠️ Expert Installation & Field Note
Based on our shop experience specializing in heavy-duty brakes since 1985:
- Alignment: Ensure meticulous alignment with the classic Bendix or Delco Moraine power brake 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 drums.
- Compatibility: Verify application compatibility with your specific vehicle model and year before installation to avoid fitment issues.















