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MPA Electrical NM4084 Brake Master Cylinder
Brake Master Cylinder for Ford Focus
Restore consistent brake pedal response with this MPA Electrical brake master cylinder for the Ford Focus. Built as a standard replacement for vehicles with front disc brakes, it is engineered to match OE specifications for dependable hydraulic performance. Part number NM4084 is a direct-fit service solution for 2000-2008 Ford Focus applications.
Key Features
- Standard replacement brake master cylinder
- Aluminum master cylinder body
- 0.9375 in. bore diameter
- Reservoir and cap included
- Gasket or seal included
- Uses High Performance Super DOT 4 fluid
- Two mounting holes with 0.342 in. mounting hole diameter
- New condition
Product Details
MPA Electrical NM4084 is part of the New with front disc brakes product line and is built for 2000-2008 Ford Focus models with front disc brakes. The master cylinder is tested against OE specifications using controlled inspection processes and sample-based validation to help ensure consistent hydraulic output and proper brake system operation. This Ford Focus brake master cylinder is supplied with a reservoir, cap, and seal, while mounting hardware, booster, push rod, sensor, and brake pressure switch are not included.
This part cross-references Ford OE numbers 1S4Z2004CA and 4S4Z2140A for the same application.
What It Helps Address
- Low or inconsistent brake pedal feel
- Internal master cylinder leakage
- Brake fluid loss at the cylinder body or seals
- Uneven hydraulic pressure delivery
- Brake performance decline on Ford Focus models with front disc brakes
Installation Notes
Verify vehicle fitment by year and brake configuration before installation. Bench bleed the master cylinder before connecting brake lines, then bleed the full hydraulic system after installation to remove trapped air. Use the specified High Performance Super DOT 4 fluid and confirm all line fittings and seals are clean and properly seated.
Quality Assurance
Each NM4084 master cylinder is checked against OE specifications through proprietary testing protocols and strict inspection standards. This process is used to support consistent braking performance right out of the box for Ford Focus brake service.
| Brand | MPA Electrical |
|---|---|
| Part Number | NM4084 |
| 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 | 0.9375 |
| 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 | 0.342 |
| Mounting Bracket Included | No |
| Brake Pressure Switch(s) Included | No |
| Fluid Type | High performance super dot 4 |
| Product Condition | New |
This part fits 9 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2008 | Ford | Focus | N/A | New with front disc brakes |
| 2007 | Ford | Focus | N/A | New with front disc brakes |
| 2006 | Ford | Focus | N/A | New with front disc brakes |
| 2005 | Ford | Focus | N/A | New with front disc brakes |
| 2004 | Ford | Focus | N/A | New with front disc brakes |
| 2003 | Ford | Focus | N/A | New with front disc brakes |
| 2002 | Ford | Focus | N/A | New with front disc brakes |
| 2001 | Ford | Focus | N/A | New with front disc brakes |
| 2000 | 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.