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MPA Electrical NM4324 Brake Master Cylinder
Brake Master Cylinder for 2009 Ford Focus
Restore consistent brake pedal response with this MPA Electrical brake master cylinder for the 2009 Ford Focus. Built as a standard replacement for vehicles with front disc brakes, Part Number NM4324 is engineered to match OE specifications for dependable hydraulic performance.
Key Features
- Direct replacement brake master cylinder for the 2009 Ford Focus, front disc brakes
- Aluminum master cylinder body for standard OE-style fitment
- 0.939 in. bore diameter for proper hydraulic output
- Reservoir and cap included
- Gasket or seal included
- Two mounting holes with 0.346 in. mounting hole diameter
- New condition, standard replacement grade
Product Details
MPA Electrical NM4324 is a brake master cylinder built to restore braking performance in the 2009 Ford Focus. The unit is tested against OE specifications using controlled processes and sample-based validation, helping ensure consistent brake pedal feel and hydraulic operation right out of the box. This part cross-references Ford OE number 9S4Z2140A for the same application.
The NM4324 includes the reservoir, cap, and seal, while mounting hardware, push rod, brake booster, sensor, bracket, and brake pressure switch are not included. Its aluminum construction and standard replacement design make it a practical choice for a Ford Focus brake master cylinder replacement when the original unit shows wear, leakage, or internal bypass.
Common Repair Symptoms
- Low or sinking brake pedal
- Brake fluid leakage around the master cylinder
- Uneven or inconsistent braking response
- Internal bypass causing reduced hydraulic pressure
- Brake warning concerns tied to master cylinder wear
Installation Notes
Before installation, verify bore size, mounting hole layout, and reservoir configuration against the original part. Bench bleeding the master cylinder before final installation helps remove trapped air and supports proper pedal feel. Inspect brake lines, seals, and the booster interface for wear or contamination during service.
Quality Assurance
MPA Electrical brake master cylinders are validated against OE specifications using proprietary testing protocols and strict inspection standards. Part Number NM4324 is built to deliver consistent braking performance for the 2009 Ford Focus, front disc brakes.
| Brand | MPA Electrical |
|---|---|
| Part Number | NM4324 |
| Position | New with front disc brakes |
| Mounting Hardware Included | No |
| Grade Type | Standard replacement |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 2 |
| Master Cylinder Bore Diameter | 0.939 |
| Brake Booster Included | No |
| Master Cylinder Cap Included | Yes |
| Master Cylinder Material | Aluminum |
| Push Rod Included | No |
| Reservoir Included | Yes |
| Sensor Included | No |
| Mounting Hole Diameter | 0.346 |
| Mounting Bracket Included | No |
| Brake Pressure Switch(s) Included | No |
| Product Condition | New |
This part fits 1 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Ford | Focus | N/A | New with front disc brakes |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.