OE Quality
60-Day Returns

MPA Electrical NM2678 Brake Master Cylinder
Brake Master Cylinder for Neon
Restore consistent brake pedal response with this MPA Electrical brake master cylinder, part number NM2678. It is a standard replacement unit for 1995-1999 Dodge Neon and 1995-1999 Plymouth Neon models with front disc brakes.
Key Features
- Direct replacement brake master cylinder for front disc brake applications
- Aluminum master cylinder body with plastic reservoir
- 0.827 bore diameter for OE-style hydraulic performance
- Reservoir included; master cylinder cap included
- Uses DOT 3 brake fluid
- New condition, standard replacement grade
- Mounting hole quantity: 2; mounting hole diameter: 0.36
Product Details
MPA Electrical NM2678 is engineered to restore braking performance by matching OE specifications through tested manufacturing processes and strict quality protocols. This brake master cylinder is built with an aluminum housing and plastic reservoir, and it arrives with the reservoir and cap already included. It does not include mounting hardware, gasket or seal, brake booster, push rod, sensor, or brake pressure switch.
Compatible With 1995-1999 Dodge Neon, front disc brakes, and 1995-1999 Plymouth Neon, front disc brakes. This part cross-references 4509681 and 4762594 for the same application. The NM2678 part number is a practical OE-style choice when replacing a worn or leaking master cylinder on Neon brake systems.
Common Issues This Part Can Address
- Low or sinking brake pedal feel
- External brake fluid leakage at the master cylinder
- Uneven or inconsistent hydraulic pressure
- Brake warning symptoms caused by master cylinder wear
- Reduced braking response in front disc brake systems
Installation Notes
Before installation, confirm vehicle fitment by year, make, model, and front disc brake configuration. Bench bleeding the master cylinder before installation helps remove trapped air from the hydraulic circuit. Use fresh DOT 3 brake fluid and inspect brake lines, fittings, and the booster interface for wear or contamination during service.
Quality Assurance
MPA Electrical tests each unit against OE specifications using proprietary processes and controlled protocols to help ensure consistent braking performance out of the box. NM2678 is a new, standard replacement brake master cylinder built for dependable hydraulic operation on Neon applications.
| Brand | MPA Electrical |
|---|---|
| Part Number | NM2678 |
| Position | New with front disc brakes |
| Reservoir Material | Plastic |
| Mounting Hardware Included | No |
| Grade Type | Standard replacement |
| Gasket Or Seal Included | No |
| Mounting Hole Quantity | 2 |
| Master Cylinder Bore Diameter | 0.827 |
| 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 | 0.36 |
| Mounting Bracket Included | No |
| Brake Pressure Switch(s) Included | No |
| Fluid Type | Dot 3 |
| Product Condition | New |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1999 | Dodge | Neon | N/A | New with front disc brakes |
| 1999 | Plymouth | Neon | N/A | New with front disc brakes |
| 1998 | Dodge | Neon | N/A | New with front disc brakes |
| 1998 | Plymouth | Neon | N/A | New with front disc brakes |
| 1997 | Dodge | Neon | N/A | New with front disc brakes |
| 1997 | Plymouth | Neon | N/A | New with front disc brakes |
| 1996 | Dodge | Neon | N/A | New with front disc brakes |
| 1996 | Plymouth | Neon | N/A | New with front disc brakes |
| 1995 | Dodge | Neon | N/A | New with front disc brakes |
| 1995 | Plymouth | Neon | 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.