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TRW PMH238 Brake Master Cylinder
| Brand | TRW PMH238 |
|---|---|
| Reservoir Material | None |
| Dust Boot Included | Yes |
| Mounting Hardware Included | No |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 2 |
| Master Cylinder Bore Diameter | 22.22 |
| 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 | M10 - 1.0 |
| Primary Outlet Thread Size | M12 - 1.0 |
| Brake Pressure Switch Required | No |
| Brake Pressure Switch(s) Included | No |
| Primary Bore Diameter | 22.22 |
| Fits | Saab · 8 vehicles |
OE direct replacement. Brake master cylinder with a straight bore and two-port design.
Aluminum construction. Lightweight housing with a dust boot and included seal.
22.22 mm bore diameter for consistent hydraulic response.
Cross-references 8948127 for the same application. See all 1.
TRW PMH238 Brake Master Cylinder for Saab 900
The TRW PMH238 is a brake master cylinder for 1979-1986 Saab 900 applications. Built with an aluminum body and a 22.22 mm straight bore, it supports consistent hydraulic pressure transfer in the brake system.
Key Features
- Direct-fit brake master cylinder for Saab 900 models from 1979-1986
- TRW PMH238 part number for catalog and service matching
- Aluminum master cylinder construction
- 22.22 mm bore diameter with straight bore type
- Two mounting holes and two outlet ports
- Dust boot and gasket/seal included
- Primary outlet thread sizes: M10 x 1.0 and M12 x 1.0
- No reservoir, booster, push rod, sensor, or mounting hardware included
Detailed Description
TRW PMH238 is a brake master cylinder engineered for Saab 900 brake hydraulics across the 1979-1986 model years. It uses a 22.22 mm primary bore diameter, a straight bore design, and an aluminum housing to match the hydraulic and mounting requirements of the original brake system. This part cross-references 8948127 for the same application. When replacing a worn Saab 900 brake master cylinder, PMH238 provides the core hydraulic component needed to restore brake pedal response and fluid pressure delivery.
Compatible With 1979-1986 Saab 900 brake master cylinder applications, this TRW unit is identified by part number PMH238 and is suited for service work where the original master cylinder body, seals, or internal hydraulic function has deteriorated.
What It Is Used For
- Replacing a leaking brake master cylinder on a Saab 900
- Addressing low or inconsistent brake pedal feel
- Correcting internal hydraulic bypass in the master cylinder
- Restoring brake fluid pressure delivery to the brake system
- Servicing a worn or corroded master cylinder housing
Installation Notes and Tips
Verify outlet thread sizes, mounting hole layout, and bore specification before installation. Transfer or source any vehicle-specific components not included with the cylinder, such as the reservoir, booster connection parts, push rod, or mounting hardware, as needed for the application. Bleed the brake system thoroughly after installation and inspect all hydraulic connections for leaks. For fitment confirmation, match the vehicle to 1979-1986 Saab 900 brake master cylinder applications before ordering PMH238.
Quality Assurance
TRW is a recognized brake component brand used in hydraulic service applications. PMH238 is built with an aluminum master cylinder body, included dust boot, and included gasket/seal to support proper replacement of the brake master cylinder assembly.
| Year | Make | Model | Submodel | Body Type | # Doors | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 1986 | Saab | 900 | Turbo | Convertible | 2 Door | 2.0L | L4 | GAS | N/A | — |
| 1985 | Saab | 900 | Turbo | Sedan | 4 Door | 2.0L | L4 | GAS | N/A | — |
| 1984 | Saab | 900 | S | Hatchback | 2 Door | 2.0L | L4 | GAS | N/A | — |
| 1983 | Saab | 900 | Turbo | Sedan | 4 Door | 2.0L | L4 | GAS | N/A | — |
| 1982 | Saab | 900 | S | Sedan | 4 Door | 2.0L | L4 | GAS | N/A | — |
| 1981 | Saab | 900 | Base | Hatchback | 2 Door | 2.0L | L4 | GAS | N/A | — |
| 1980 | Saab | 900 | GLE | Hatchback | 4 Door | 2.0L | L4 | GAS | N/A | — |
| 1979 | Saab | 900 | Turbo | Hatchback | 4 Door | 2.0L | L4 | GAS | N/A | — |
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