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TRW PMK314 Brake Master Cylinder
| Brand | TRW PMK314 |
|---|---|
| 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 | 2 |
| 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 |
| Fits | Audi, Porsche, and Volkswagen · 25 vehicles |
Aluminum construction. Lightweight master cylinder housing for dependable hydraulic performance.
Seal included. Helps simplify installation with a gasket or seal already provided.
Straight bore design. Built with a 23.81 mm bore for consistent brake pressure response.
Cross-references 8D0611021A, 8D0611021B and 99635591000 for the same application. See all 3.
Brake Master Cylinder for Porsche, Audi, and Volkswagen
TRW PMK314 is a brake master cylinder built for select Porsche 911 and Boxster, Audi A4 and A6, and Volkswagen Passat applications. It features an aluminum body, a 23.81 mm straight bore, and two piston construction for hydraulic brake system service.
Key Features
- Brake master cylinder for brake hydraulics service
- Aluminum master cylinder material for corrosion resistance and weight control
- 23.81 mm primary bore diameter with straight bore type
- Two piston design with two mounting holes and two ports
- Dust boot included
- Gasket or seal included
- Primary outlet thread size: M12 x 1.0
- No reservoir included
- No brake booster, push rod, sensor, or mounting hardware included
Detailed Description
TRW PMK314 is an OE-style brake master cylinder for hydraulic brake system repair on select Porsche 911, Porsche Boxster, Audi A4, Audi A4 Quattro, Audi A6, Audi A6 Quattro, and Volkswagen Passat models. This unit uses an aluminum housing, straight 23.81 mm bore, and dual-port layout to match the original brake circuit configuration on listed vehicles. It cross-references 8D0611021A, 8D0611021B, and 99635591000 for the same application.
What It Is Used For
- Replacing a leaking or internally bypassing master cylinder
- Restoring firm brake pedal response
- Addressing low brake pressure or uneven hydraulic output
- Repairing brake fluid loss at the master cylinder body or seals
- Servicing original hydraulic brake components on Audi, Porsche, and Volkswagen platforms
Installation Notes and Tips
Verify bore size, outlet thread size, port count, and reservoir arrangement before installation. This part does not include a reservoir, brake booster, push rod, bleeder screws, bleeder hoses, sensor, mounting bracket, or mounting hardware. Bench bleeding is recommended before final installation, and the brake system should be inspected for leaks and air after service. Fits 2005 Porsche 911, N/A. Fits 1999-2004 Porsche 911, N/A, Exc.Electronic Stability Control. Fits 1997-2000 Porsche Boxster, N/A. Fits 1996-1999 Audi A4, N/A. Fits 1999 Audi A4 Quattro, N/A, To Chassis/VIN 3B-X-491 580. Fits 1998-1999 Audi A6, N/A. Fits 1998-1999 Audi A6 Quattro, N/A. Fits 1998-1999 Volkswagen Passat, N/A. Fits 1996-1998 Audi A4 Quattro, N/A.
Quality Assurance
TRW is an established brake component brand with OE-level application coverage for hydraulic brake service. PMK314 is built to match the listed fitments and interchange references for direct replacement use on the specified vehicles.
| Year | Make | Model | Submodel | Body Type | Drive Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 2005 | Porsche | 911 | Carrera | — | — | — | — | — | N/A | — |
| 2004 | Porsche | 911 | 40th Anniversary Edition | — | — | — | — | — | N/A | Exc.Electronic Stability Control |
| 2003 | Porsche | 911 | Carrera | — | — | — | — | — | N/A | Exc.Electronic Stability Control |
| 2002 | Porsche | 911 | Carrera 4 | — | — | 3.6L | H6 | — | N/A | Exc.Electronic Stability Control |
| 2001 | Porsche | 911 | Carrera 4 | — | — | — | — | — | N/A | Exc.Electronic Stability Control |
| 2000 | Porsche | 911 | Carrera 4 | — | — | — | — | — | N/A | Exc.Electronic Stability Control |
| 2000 | Porsche | Boxster | Roadster S | — | — | — | — | — | N/A | — |
| 1999 | Audi | A4 | Base | — | — | — | — | GAS | N/A | — |
| 1999 | Audi | A4 Quattro | Avant | — | — | 1.8L | L4 | GAS | N/A | To Chassis/VIN 3B-X-491 580 |
| 1999 | Audi | A6 | Base | — | — | 2.8L | V6 | GAS | N/A | — |
| 1999 | Audi | A6 Quattro | Avant | — | — | 2.8L | V6 | GAS | N/A | — |
| 1999 | Porsche | 911 | Carrera | — | — | — | — | — | N/A | Exc.Electronic Stability Control |
| 1999 | Porsche | Boxster | Base | — | — | — | — | — | N/A | — |
| 1999 | Volkswagen | Passat | GLS | Wagon | FWD | 1.8L | L4 | — | N/A | — |
| 1998 | Audi | A4 | Avant | — | — | — | — | GAS | N/A | — |
| 1998 | Audi | A4 Quattro | Base | — | — | — | — | GAS | N/A | — |
| 1998 | Audi | A6 | Base | — | — | 2.8L | V6 | GAS | N/A | — |
| 1998 | Audi | A6 Quattro | Base | — | — | 2.8L | V6 | GAS | N/A | — |
| 1998 | Porsche | Boxster | Base | — | — | — | — | — | N/A | — |
| 1998 | Volkswagen | Passat | GLX | Sedan | — | 2.8L | V6 | — | N/A | — |
| 1997 | Audi | A4 | Base | — | — | — | — | GAS | N/A | — |
| 1997 | Audi | A4 Quattro | Base | — | — | — | — | GAS | N/A | — |
| 1997 | Porsche | Boxster | Base | — | — | — | — | — | N/A | — |
| 1996 | Audi | A4 | Base | — | — | 2.8L | V6 | GAS | N/A | — |
| 1996 | Audi | A4 Quattro | Base | — | — | 2.8L | V6 | GAS | N/A | — |
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