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MPA Electrical M4080 Brake Master Cylinder
Brake Master Cylinder for Cadillac CTS and SRX
MPA Electrical M4080 is a remanufactured brake master cylinder for select Cadillac models with front disc brakes. It is built as a standard replacement with a 1-inch bore and aluminum construction to restore hydraulic brake performance on the vehicle applications listed below.
Key Features
- Remanufactured brake master cylinder
- Standard replacement grade
- 1-inch master cylinder bore diameter
- Aluminum master cylinder body
- Uses DOT 3 brake fluid
- Two mounting holes with 0.42-inch mounting hole diameter
- Reservoir, cap, push rod, sensor, and brake booster not included
Product Details
MPA Electrical M4080 is engineered for brake hydraulic service on 2003-2004 Cadillac CTS and 2004 Cadillac SRX applications with front disc brakes. The remanufacturing process uses OE sample references and testing protocols to verify performance against OE specifications, helping deliver consistent brake pedal response after installation. This part cross-references OE number 18046412 for the same application. M4080 is a practical replacement choice when servicing the master cylinder on Cadillac CTS or Cadillac SRX brake systems that require a 1-inch bore design.
What It Helps Address
- Low or inconsistent brake pedal feel
- Internal master cylinder leakage
- Brake fluid bypass causing reduced hydraulic pressure
- Brake warning symptoms related to master cylinder wear
- Restoring braking performance after hydraulic component failure
Installation Notes and Tips
Before installation, verify the vehicle is a 2003-2004 Cadillac CTS or 2004 Cadillac SRX with front disc brakes. Bench bleed the master cylinder before connecting brake lines, and use fresh DOT 3 brake fluid during service. Because mounting hardware, reservoir, cap, push rod, and seals are not included, transfer or source the required related components as needed for the repair.
Quality Assurance
MPA Electrical remanufactures this brake master cylinder using OE-based references and testing procedures to confirm it meets specification targets for brake hydraulic performance. M4080 is built for direct replacement service on the listed Cadillac applications.
| Brand | MPA Electrical |
|---|---|
| Part Number | M4080 |
| Position | Reman with front disc brakes |
| Mounting Hardware Included | No |
| Grade Type | Standard replacement |
| Gasket Or Seal Included | No |
| Mounting Hole Quantity | 2 |
| Master Cylinder Bore Diameter | 1 |
| Brake Booster Included | No |
| Master Cylinder Cap Included | No |
| Master Cylinder Material | Aluminum |
| Push Rod Included | No |
| Reservoir Included | No |
| Sensor Included | No |
| Mounting Hole Diameter | 0.42 |
| Mounting Bracket Included | No |
| Brake Pressure Switch(s) Included | No |
| Fluid Type | Dot 3 |
| Product Condition | Remanufactured |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2004 | Cadillac | CTS | N/A | Reman with front disc brakes |
| 2004 | Cadillac | SRX | N/A | Reman with front disc brakes |
| 2003 | Cadillac | CTS | N/A | Reman 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.