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TRW PMK328 Brake Master Cylinder
Overview of TRW PMK328 Brake Master Cylinder
The TRW PMK328 brake master cylinder is engineered for precise hydraulic brake control in Porsche 911 models. Designed with durable aluminum construction and essential features, this master cylinder supports reliable braking performance for your Porsche 911.
- Constructed from lightweight, corrosion-resistant aluminum
- Includes dust boot and gasket/seal for protection and leak prevention
- Two mounting holes for secure installation
- Straight bore type with a 23.81 mm bore diameter
- Equipped with four ports and dual pistons for efficient brake fluid distribution
Detailed Product Description
The TRW PMK328 brake master cylinder is specifically designed for Porsche 911 vehicles, ensuring compatibility and optimal performance. Its aluminum body offers strength and resistance to corrosion, which is critical for maintaining brake system integrity over time. The master cylinder features a straight bore design with a 23.81 mm diameter, supporting consistent hydraulic pressure. Two pistons within the unit provide balanced brake fluid flow to the braking system. Included dust boots and gaskets help protect internal components from contaminants and prevent fluid leaks, contributing to the longevity and reliability of the brake hydraulics.
Applications and Problem Solving
- Restores proper brake pedal feel and responsiveness in Porsche 911 brake systems
- Addresses brake fluid leaks caused by worn or damaged seals
- Replaces master cylinders with corroded or damaged aluminum bodies
- Improves hydraulic pressure consistency for safer braking performance
- Suitable for brake system rebuilds requiring a master cylinder with dual pistons and multiple ports
Installation Notes and Tips
When installing the TRW PMK328 brake master cylinder, ensure the mounting surface is clean and free of debris. Use the included gasket or seal to prevent fluid leaks. Note that mounting hardware and reservoir are not included and must be sourced separately. Bleeding the brake system thoroughly after installation is essential to remove air and restore proper hydraulic pressure. Verify compatibility with your Porsche 911 model year before installation.
Quality Assurance and Warranty
TRW manufactures the PMK328 brake master cylinder to meet strict quality standards, using durable aluminum and precision engineering. The included dust boot and gasket contribute to long-term reliability by protecting internal components. While specific warranty details are not provided here, TRW products typically come with manufacturer-backed warranties to ensure customer confidence in product durability and performance.
| Brand | TRW |
| Part Number | PMK328 |
| Reservoir Material | None |
| Dust Boot Included | Yes |
| Mounting Hardware Included | No |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 2 |
| Master Cylinder Bore Diameter | 23.81 |
| Bleeder Screw Included | No |
| Piston Quantity | 2 |
| Brake Booster Included | No |
| Master Cylinder Material | Aluminum |
| Push Rod Included | No |
| Reservoir Included | No |
| Bleeder Hoses Included | No |
| Sensor Included | No |
| Port Quantity | 4 |
| Mounting Bracket Included | No |
| Bore Type | Straight |
| Primary Outlet Thread Size | M12 - 1.0 |
| Brake Pressure Switch Required | No |
| Brake Pressure Switch(s) Included | No |
| Primary Bore Diameter | 23.81 |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1998 | Porsche | 911 | Carrera 4S | 3.6L | H6 | GAS | N/A | |
| 1997 | Porsche | 911 | Carrera | 3.6L | H6 | GAS | N/A | |
| 1996 | Porsche | 911 | Targa | 3.6L | H6 | GAS | N/A | |
| 1995 | Porsche | 911 | Carrera 4 | 3.6L | H6 | GAS | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.